Title:
【発明の名称】湿式クラッチ
Document Type and Number:
Japanese Patent JP2000504090
Kind Code:
A
Abstract:
PCT No. PCT/EP97/00343 Sec. 371 Date Jul. 2, 1998 Sec. 102(e) Date Jul. 2, 1998 PCT Filed Jan. 25, 1997 PCT Pub. No. WO97/28389 PCT Pub. Date Aug. 7, 1997In hydraulic clutches (1) generating high levels of heat, the problem is to ensure a rapid and even heat dissipation over the entire friction surface and an oil flow rate which is independent of the wear of the hydraulic clutch (1) and largely independent of the actuating pressure. The problem is solved as follows: at least one restrictor (1/6) is located in and/or between the lining supports or discs (1/5) of the hydraulic clutch (1) and acts independently of the wear and machining inaccuracy of the lining grooves (1/7, 1/8) of the lining supports (1/3, 1/4). This ensures an optimal through-flow and an oil flow rate that is independent of wear. The independence of wear results from the fact that the flow resistance is determined solely by the through-apertures (1/6) in the lining support (1/5), the flow cross section of the grooves (1/7, 1/8) being several times greater than that of the through-apertures (1/6). If one or more oil ducts are enclosed on the side remote from the lining by two or more steel discs (1/9, 1/10) which do not move relative to each other, the flow rate is independent of wear, since the oil ducts or the flow cross sections are not affected by the wear. Independence from the actuating pressure and engine speed is ensured by flow rate limitation.
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Inventors:
Haupt, joseph
Application Number:
JP52728297A
Publication Date:
April 04, 2000
Filing Date:
January 25, 1997
Export Citation:
Assignee:
ZF FRIEDRICHSHAFEN AG
International Classes:
F16H45/02; (IPC1-7): F16H45/02
Domestic Patent References:
| JPH07146191A | 1995-06-06 | |||
| JPH05296313A | 1993-11-09 | |||
| JPH07259953A | 1995-10-13 | |||
| JPH02102963A | 1990-04-16 | |||
| JPH08303551A | 1996-11-19 |
Attorney, Agent or Firm:
Kazuo Sato (3 others)