Senior Fitness - Exercise and Nutrition for Aging Men and Women
FREE Article Feed for your website.
Home Ownership Magazine
Party Planning Information
Article Marketing Resources
Bio-Medical Research Article Database
Informative Articles on Life, Love and Happiness
Tutorials on Business to Writing
Famous Quotes from Famous People
Song Lyric Information
New US Patent Information
Comprehensive List of Content by Category
Online Auctions and Shopping Related Articles
Article Search
Most Recent Articles
Title: Element analyzer
Patent Number: 6,762,834 Issued on 07/13/2004 to Komatani,   et al.

Title: Video sighting system
Patent Number: 7,162,806 Issued on 01/16/2007 to Swiggart

Title: Multiple viewing angle cover having integral light pipe
Patent Number: 6,937,812 Issued on 08/30/2005 to Schladenhauffen,   et al.

Title: Transmission control protocol
Patent Number: 7,143,131 Issued on 11/28/2006 to Soles,   et al.

Title: Thermal barrier for a thermistor
Patent Number: 7,145,110 Issued on 12/05/2006 to Rosen

Title: Automatic loader bucket orientation control
Patent Number: 6,763,619 Issued on 07/20/2004 to Hendron,   et al.

Title: Base structure of a retainer for a shelving
Patent Number: 7,150,363 Issued on 12/19/2006 to Tomonari,   et al.

Title: Modified pertussis toxin
Patent Number: 7,144,576 Issued on 12/05/2006 to Burnette, III

Title: Cooling device for battery pack and rechargeable battery
Patent Number: 7,150,935 Issued on 12/19/2006 to Hamada,   et al.

Title: Method of manufacturing a coil for a magnet
Patent Number: 6,763,572 Issued on 07/20/2004 to Bird,   et al.

Title: Semiconductor integrated circuit device
Patent Number: 6,765,286 Issued on 07/20/2004 to Morimura,   et al.

Title: Push feed arm for post processing device
Patent Number: 7,172,194 Issued on 02/06/2007 to Terao,   et al.

Title: Apparatus and accompanying methods for network distribution and interstitial rendering of information objects to client computers
Patent Number: 7,143,337 Issued on 11/28/2006 to Landsman,   et al.

Title: Generating image data
Patent Number: 7,142,709 Issued on 11/28/2006 to Girard

Title: Railcar mover having negative cambered rail wheels
Patent Number: 6,763,767 Issued on 07/20/2004 to Jackson,   et al.

Title: Throttle valve unit with drive unit receptacle and drive unit contact
Patent Number: 6,763,582 Issued on 07/20/2004 to Kaiser,   et al.

Title: Task-oriented processing as an auxiliary to primary computing environments
Patent Number: 7,152,171 Issued on 12/19/2006 to Chandley,   et al.

Title: Electronic circuit device
Patent Number: 7,149,091 Issued on 12/12/2006 to Ochi,   et al.

Title: Shaker screen clamping and sealing assembly
Patent Number: 7,150,358 Issued on 12/19/2006 to Carr,   et al.

Title: Method and system for radio map filtering via adaptive clustering
Patent Number: 7,155,239 Issued on 12/26/2006 to Zeng,   et al.

Title: Method for measuring free-state diameter of metal ring
Patent Number: 6,763,602 Issued on 07/20/2004 to Arikawa,   et al.

Title: Regulators of type-1 tumor necrosis factor receptor and other cytokine receptor shedding
Patent Number: 7,135,303 Issued on 11/14/2006 to Levine

Title: Stick-type glue dispenser with quick-opening cap
Patent Number: 7,147,393 Issued on 12/12/2006 to Yoon

Title: Method for providing power management on multi-threaded processor by using SMM mode to place a physical processor into lower power state
Patent Number: 7,152,169 Issued on 12/19/2006 to Cooper,   et al.

Title: Training system and method for improving user knowledge and skills
Patent Number: 7,153,140 Issued on 12/26/2006 to Ivanir,   et al.

Title: Apparatus for securely yet removably installing an ornament onto a substantively planar surface
Patent Number: 7,147,399 Issued on 12/12/2006 to Viscount,   et al.

Title: Toilet seat having a cleansing facility
Patent Number: 7,155,755 Issued on 01/02/2007 to Olivier

Title: Secure internet voting system with bootable disk
Patent Number: 7,152,156 Issued on 12/19/2006 to Babbitt,   et al.

Title: Footwear sole incorporating a lattice structure
Patent Number: 6,763,611 Issued on 07/20/2004 to Fusco

Title: Manufacturing method of component part for variable capacity turbine, and the structure
Patent Number: 6,763,587 Issued on 07/20/2004 to Jinnai,   et al.

Title: Production of tubular fuel cells, fuel cell modules, base elements and ion exchanger membranes
Patent Number: 7,150,932 Issued on 12/19/2006 to Hofler,   et al.

Title: Apparatus and methods for transmitting data at high speed using TCP/IP
Patent Number: 6,760,769 Issued on 07/06/2004 to Jayam,   et al.

Title: Method for manufacturing spiral contactor
Patent Number: 6,763,581 Issued on 07/20/2004 to Hirai,   et al.

Title: Process for determining the percent of chelation in a dry mixture
Patent Number: 7,144,737 Issued on 12/05/2006 to Hartle,   et al.

Title: Forming thermally curable materials on a support structure in an electronic device
Patent Number: 6,765,652 Issued on 07/20/2004 to Jiang

Title: Support structure for a shoe
Patent Number: 6,763,612 Issued on 07/20/2004 to Stubblefield,   et al.

Title: Electrical connector assembly
Patent Number: 7,147,508 Issued on 12/12/2006 to Ju

Title: Transport and storage device
Patent Number: 7,150,373 Issued on 12/19/2006 to Richter

Title: Connector of electronic device
Patent Number: 7,153,141 Issued on 12/26/2006 to Liu

Title: Method for recovery of by product gas in vacuum heat treatment
Patent Number: 7,150,777 Issued on 12/19/2006 to Alcantara

Title: Vehicular electronic control unit
Patent Number: 7,149,609 Issued on 12/12/2006 to Hashimoto

Title: Cover supporting structure for light vehicle
Patent Number: 7,150,338 Issued on 12/19/2006 to Inui,   et al.

Title: Method for preparing an optical device using position markers around an optical lens and a light barrier film
Patent Number: 7,145,860 Issued on 12/05/2006 to Kouchiyama,   et al.

Title: Bi-modal ionomers
Patent Number: 6,762,246 Issued on 07/13/2004 to Chen

Title: Optical disk having wobble patterns representing control information
Patent Number: 7,145,843 Issued on 12/05/2006 to Minamino,   et al.

Title: Method and device for identifying and eliminating the risk of rollover
Patent Number: 7,149,614 Issued on 12/12/2006 to Traechtler,   et al.

Title: Method for drying nails
Patent Number: 7,162,811 Issued on 01/16/2007 to Delaney,   et al.

Title: Method and system for backing up programmable logic controllers over network
Patent Number: 7,149,604 Issued on 12/12/2006 to Dalton,   et al.

Title: Method for monitoring implantation depth of impurity
Patent Number: 7,144,746 Issued on 12/05/2006 to Kishiro

Title: Method and computer system for displaying a table with column header inscriptions having a reduced horizontal size
Patent Number: 7,146,562 Issued on 12/05/2006 to Janssen

Title: Golf ball core compositions containing high vicat softening themperature, resilient thermoplastic materials
Patent Number: 6,762,244 Issued on 07/13/2004 to Rajagopalan,   et al.

Title: Applying filler extruding container
Patent Number: 7,147,396 Issued on 12/12/2006 to Tani

Title: Historical data warehousing system
Patent Number: 7,143,099 Issued on 11/28/2006 to Lecheler-Moore,   et al.

Title: Quantitative lateral flow assays and devices
Patent Number: 7,144,742 Issued on 12/05/2006 to Boehringer,   et al.

Title: Elevator structure mounting system having horizontal member for reducing building loads at top of hoistway
Patent Number: 7,150,342 Issued on 12/19/2006 to Adifon,   et al.

Title: Momentum estimator for on-station momentum control
Patent Number: 7,149,610 Issued on 12/12/2006 to Wang,   et al.

Title: Disposable wearing article
Patent Number: 7,160,282 Issued on 01/09/2007 to Sayama

Title: Fault diagnosis in a network
Patent Number: 7,143,316 Issued on 11/28/2006 to Christodoulou,   et al.

Title: Vanilloid receptor ligands and their use in treatments
Patent Number: 7,144,888 Issued on 12/05/2006 to Doherty,   et al.

Title: Pharmaceutical uses and synthesis of nicotinamides
Patent Number: 7,151,112 Issued on 12/19/2006 to Cutshall,   et al.

Title: Method for binder extraction and sintering of green bodies in a state of weightlessness
Patent Number: 7,144,548 Issued on 12/05/2006 to Billiet,   et al.

Title: Synthesis of LiBC and hole-doped Li.sub.1-xBC
Patent Number: 7,144,562 Issued on 12/05/2006 to Liu,   et al.

Title: Structure and plating method of thin film magnetic head and magnetic storage apparatus
Patent Number: 7,150,819 Issued on 12/19/2006 to Kudo,   et al.

Title: Image sensor unit and image reader using the same
Patent Number: 6,765,648 Issued on 07/20/2004 to Takahara

Title: Animal enrichment system
Patent Number: 7,146,931 Issued on 12/12/2006 to Gabriel,   et al.

Title: Method for automatically creating a denture using laser altimetry to create a digital 3-D oral cavity model and using a digital internet connection to a rapid stereolithographic modeling machi
Patent Number: 7,153,135 Issued on 12/26/2006 to Thomas

Title: Semiconductor device tester which measures information related to a structure of a sample in a depth direction
Patent Number: 6,768,324 Issued on 07/27/2004 to Yamada,   et al.

Title: Multitube reactor, vapor phase catalytic oxidation method using the multitube reactor, and start up method applied to the multitube reactor
Patent Number: 7,144,557 Issued on 12/05/2006 to Yada,   et al.

Title: Detergent
Patent Number: 7,144,847 Issued on 12/05/2006 to Itoh,   et al.

Title: System and method for controlling a fuel cell testing device
Patent Number: 7,149,641 Issued on 12/12/2006 to Gopal,   et al.

Title: Method of controlling washing machine
Patent Number: 7,146,671 Issued on 12/12/2006 to Kim,   et al.

Title: Measuring apparatus
Patent Number: 6,947,145 Issued on 09/20/2005 to Naya

Title: Powder metallurgical compositions and methods for making the same
Patent Number: 7,153,339 Issued on 12/26/2006 to Lindsley,   et al.

Title: Device and method for controlling air cleaning operation of air conditioner
Patent Number: 7,153,347 Issued on 12/26/2006 to Kang,   et al.

Title: Multilayer ceramic substrate and method for manufacturing the same
Patent Number: 6,762,369 Issued on 07/13/2004 to Saito,   et al.

Multi-plate clutch, particularly for a double clutch transmission Number:7,124,869 from the United States Patent and Trademark Office (PTO) owispatent

Home    Author Login    Submit Article    Article Search    Add Your Link    Edit Your Link    Contact Us    Advertising    Disclaimer

   

 
Web LinkGrinder.com

Top Breaking News
     Greek, Cypriot Leaders Resume Unification Talks in Nicosia by Nathan Morley
     Indonesia Tobacco Sales Grow, Raising Health Fears
     South Korea Allows Top Defector to Travel Overseas by VOA News

Title: Multi-plate clutch, particularly for a double clutch transmission

Abstract: A multi-plate clutch, particularly for a dual clutch transmission, has at least one clutch housing alternately holds externally and internally toothed plate disks, a hub arranged at the end face on the clutch housing. The hub has a central opening for receiving a gear shaft and openings disposed to reduce weight. Additional openings are provided in the lateral surface of the clutch basket, with at least a portion of the openings distributed over at least a section of the configured as triangular recesses.

Patent Number: 7,124,869 Issued on 10/24/2006 to Hoebel,   et al.


Inventors: Hoebel; Peter (Neuhausen, DE), Sternberg; Michael (Oberboihingen, DE)
Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft (Stuttgart, DE)
Appl. No.: 11/202,073
Filed: August 12, 2005


Foreign Application Priority Data

May 02, 2003 [DE] 103 19 703.6

Current U.S. Class: 192/48.91 ; 192/112; 192/70.2
Current International Class: F16D 13/62 (20060101); F16D 13/64 (20060101)


References Cited [Referenced By]

U.S. Patent Documents
1707843 April 1929 Byerlein
2214592 September 1940 Mueller
2488079 November 1949 De Lavaud et al.
3623579 November 1971 Hendrickson et al.
6026944 February 2000 Satou et al.
6145643 November 2000 Pinschmidt et al.
6523662 February 2003 Orlamunder
6929107 August 2005 Hegerath
2002/0053498 May 2002 Orlamunder
Foreign Patent Documents
198 27 339 A 1 Jun., 1998 DE
198 27 340 C 1 Jun., 1998 DE
199 04 134 Feb., 1999 DE
01030929 Feb., 1989 JP

Other References

International Search Report, Apr. 21, 2003. cited by other.

Primary Examiner: Bonck; Rodney H.
Attorney, Agent or Firm: Crowell & Moring LLP

Claims



What is claimed is:

1. Multi-plate clutch, having at least one clutch housing alternately holding externally toothed and internally toothed plate disks, and having a hub arranged at an end face of the clutch housing in which a central shaft opening is provided to receive a gear shaft, said clutch housing having weight reduction openings arranged to reduce weight in both the hub and a lateral surface of the clutch housing, such that at least one row of the weight reduction openings are distributed over an entire circumference of at least a first section of the lateral surface in the form of triangular recesses, and adjacent triangular recesses on the first section of the lateral surface alternate such that a strip with a substantially constant width results between adjacent triangular recesses.

2. Multi-plate clutch as claimed in claim 1, wherein corners of the recesses have a radius.

3. Multi-plate clutch as claimed in claim 2, wherein the first lateral surface section adjoins a second lateral surface section which is provided with teeth on an inside surface for a rotationally fixed connection with the externally toothed plate disks of the clutch housing.

4. Multi-plate clutch as claimed in claim 3, wherein weight reduction openings are also provided on an entire circumference of the second lateral surface section.

5. Multi-plate clutch as claimed in claim 4, wherein within the clutch housing is an outer clutch housing, and the multi-plate clutch further includes an inner clutch housing arranged concentrically to the outer clutch housing and likewise receives externally and internally geared plate disks, such that the inner clutch housing has substantially the same axial width as the first lateral surface section of the outer clutch housing.

6. Multi-plate clutch as claimed in claim 1, wherein the first lateral surface section adjoins a second lateral surface section which is provided with teeth on an inside surface for a rotationally fixed connection with the externally toothed plate disks of the clutch housing.

7. Multi-plate clutch as claimed in claim 6, wherein weight reduction openings are also provided on an entire circumference of the second lateral surface section.

8. Multi-plate clutch as claimed in claim 7, wherein within the clutch housing is an outer clutch housing, and the multi-plate clutch further includes an inner clutch housing arranged concentrically to the outer clutch housing and likewise receives externally and internally geared plate disks, such that the inner clutch housing has substantially the same axial width as the first lateral surface section of the outer clutch housing.
Description



This application is a continuation of International Application No. PCT/EP2004/004190, filed Apr. 21, 2004, and claims the priority of German Patent Application No. DE 103 19703.6, filed May 2, 2003, the disclosure of which is expressly incorporated by reference herein.

BACKGROUND AND SUMMARY OF THE INVENTION

The invention relates to a multi-plate clutch, particularly for a dual clutch transmission.

From German Publication DE 199 04 134 A1 it is known to provide the hub of a clutch housing with recesses to save weight. From German Publication DE 198 27 340 C1 it is known to introduce openings or recesses in the lateral surface of a multi-plate clutch housing, again to save weight.

The object of the invention is to provide additional weight saving measures in a clutch housing with a hub for a multi-plate clutch so as to reduce the mass moments of inertia occurring during operation and at the same time ensure the dimensional stability of the clutch housing.

This object is attained by a multiplate clutch having at least one clutch housing alternately holding externally toothed and internally toothed plate disks, and having a hub arranged at an end face of the clutch housing in which a central opening is provided to received a gear shaft, and having openings arranged in the hub to reduce weight, wherein the openings are made in both the hub and a lateral surface of the clutch housing such that at least one row of the openings are distributed over an entire circumference of at least a first section of the lateral surface in the form of triangular recesses.

By combining recesses formed in the hub and on the lateral surface of the clutch housing, such that the openings distributed over the entire lateral surface are configured as triangular recesses, it is possible to reduce the weight and nevertheless preserve the necessary dimensional stability. With this weight reduction, the mass moments of inertia can be reduced by up to 30% compared to a clutch housing structure without recesses.

Other advantageous embodiments and refinements of the multi-plate clutch include the following.

The triangular recesses formed in the clutch housing are aligned such that a strip of substantially constant width is obtained between at least two adjacent recesses. This achieves a truss-type bracing, which ensures the dimensional stability of the clutch housing despite the substantial weight reduction, even at high engine speeds.

Investigations have shown that if the corners for the recesses in the lateral surface of the clutch housing are rounded, the rigidity of the clutch housing can be further enhanced.

The clutch housing has a first lateral surface section, which is provided with the triangular recesses. A second lateral surface section of the clutch housing is provided with interior teeth for a non-rotatable engagement with the externally toothed disk plates. The exterior of the second lateral surface also has openings for weight reduction, which extend over the entire lateral surface.

The clutch housing forms part of a dual clutch transmission, in which an additional clutch housing is arranged concentrically to the outer clutch housing. The inner clutch housing has substantially the same axial width as the first lateral surface section of the outer clutch housing. This ensures that the added masses or radii of the two clutch housings in this area do not result in unacceptably high centrifugal forces or mass moments of inertia.

Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings for example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic representation of a dual clutch arrangement including a multi-plate clutch in accordance with an embodiment of the present invention.

FIG. 2 shows a clutch housing of a multi-plate clutch in accordance with an embodiment of the present invention.

The multi-plate clutch 2 schematically shown in FIG. 1 forms part of a dual clutch arrangement, which on the input side is connected to an engine (not depicted) via a torque converter 4 and on the output side to two input shafts 6 and 8. The input shafts are rotationally fixed, respectively, to an inner clutch housing 2a and an outer clutch housing 2b, which are arranged concentrically to one another, as are the input shafts 6 and 8. In the two clutch housings 2a, 2b, externally toothed plate disks 3 and internally toothed plate disks 5 are arranged. The externally toothed plate disks 3 are rotationally fixed to the clutch housing 2a or 2b, while the internally toothed plate disks 5 are rotationally fixed to a disk carrier 7.

The structure of the outer clutch housing 2b illustrated in greater detail in FIG. 2 will now be described in more detail. The outer clutch housing 2b consists of a sheet metal body shaped without stock removal and having a cylindrical lateral surface 10, on the side of which a hub 14 is arranged, which has a central opening 12. The inner input shaft 6 engages with this central opening 12 in a positive locking manner by means of gear teeth (not depicted). In the hub 14, openings or recesses 16 are uniformly distributed around the central opening 12, such that the resulting spoke shape of the hub 14 helps reduce the weight of the clutch housing 2b. The lateral surface 10 of the clutch housing 2b has a first lateral surface section 10a in which triangular recesses 18 are uniformly distributed around its entire circumference. The recesses 18 are mutually aligned so as to form strips 20 having a substantially constant width b, such that two adjacent strips 20 are aligned at an angle .alpha. in relation to one another. This results in a truss-type bracing to ensure the rigidity of the clutch housing 2b required for high engine speeds despite the recesses 18 provided in the first lateral surface section 10a. The recesses 18, which are essentially configured as equilateral triangles, have a radius R in their corner regions. The second lateral surface section 10b adjoining the first lateral surface section is provided with internal teeth 22, with which the externally toothed plate disks 5 of the outer clutch housing 2b engage. Between the internal teeth 22, strips 24 are formed, which are likewise provided with oblong holes 26 to save weight. As a compromise between weight reduction and maintaining adequate dimensional stability, the strips 24 are alternately provided with one or two oblong holes 26.

Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings for example, the above-described clutch housing structure of a multi-plate clutch is not limited to the described application in a dual clutch transmission, but can likewise be used in single manual or automatic transmissions.

The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.

*


Free Web Sudoku Puzzles.
Solve with your browser.
    2 9 8     1  
9   6   1 2   7  
  8       6      
  5              
4 2           9 6
              8  
      1       2  
  1   4 9   7   3
  9     7 5 8    
What is it?



Add Your Site · Terms Of Service · Privacy Policy


DISCLAIMER
Linkgrinder is a free service that searches the Internet and indexes all files found so that you may search quickly and easily for shared files. These files are created and made available individually by users whose identity we are not aware of and who we have no control over. In essence we function like a search engine tool; these files ARE NOT STORED OR SERVED BY OUR NETWORK. We are not responsible for any materials obtained by using our service. We do not monitor any of the contents of these files. These files may contain viruses, illegal materials, materials inappropriate for minors, offensive files and the like. BY USING OUR SERVICE, YOU ASSUME FULL RESPONSIBILITY FOR DOWNLOADING THESE MATERIALS AND WILL INDEMNIFY US FOR ANY DAMAGES THAT MAY BE INCURRED.

For More Specific Information VIEW OUR TERMS OF SERVICE.

Thank you and Enjoy!