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Patent Searching and Data


Title:
WET TYPE CLUTCH FRICTION PLATE
Document Type and Number:
WIPO Patent Application WO/2005/085667
Kind Code:
A1
Abstract:
A wet type clutch friction plate having a friction member (21) connected to one or both side surfaces of a core plate (20) and formed with a number of oil grooves (22) establishing communication between the inner and outer peripheral edges of the friction member (21), wherein the plurality of oil grooves (22) having a discharge angle (β) for discharging oil from the inner to outer peripheral sides of a friction plate (15) during rotation of the latter and a plurality of oil grooves (22) having an inflow angle (&agr ) for drawing oil from the outer to inner peripheral sides of the friction plate (15) alternate with each other at substantially equispaced intervals. Thus, it is possible to stabilize the friction characteristics during transition of clutch connection and to reduce a dragging phenomenon due to oil viscosity resistance during clutch-off.

Inventors:
TSUBOI AKIRA (JP)
KAWAMURA SATOSHI (JP)
MIYATSU MITSUO (JP)
IIDA FUMIYOSHI (JP)
Application Number:
PCT/JP2004/002737
Publication Date:
September 15, 2005
Filing Date:
March 04, 2004
Export Citation:
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Assignee:
FCC KK (JP)
TSUBOI AKIRA (JP)
KAWAMURA SATOSHI (JP)
MIYATSU MITSUO (JP)
IIDA FUMIYOSHI (JP)
International Classes:
F16D13/62; F16D13/64; (IPC1-7): F16D13/62
Foreign References:
JPS6266032U1987-04-24
JPS5694030A1981-07-30
JPH02203029A1990-08-13
JPH08166025A1996-06-25
JP2004076896A2004-03-11
JP2001221252A2001-08-17
Other References:
See also references of EP 1731784A4
Attorney, Agent or Firm:
Ochiai, Takeshi (6-3 Taito 2-chome, Taito-k, Tokyo 16, JP)
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