Lubricating structure for wet multi-plate clutch

Details Lubricating structure for wet multi-plate clutch Lubricating structure for wet multi-plate clutch

1996-08-27

1998-05-26

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Axially engaging

192 85AA, 19211335, 19211336, F16D 1372, F16D 25064

Patent

active

057553149

ABSTRACT:
A lubricating structure for a wet multi-plate clutch is disclosed. The clutch comprises a clutch center member, a clutch guide member positioned radially outward with respect to said clutch center member, a plurality of friction plates disposed between the clutch center member and the clutch guide, the friction plates being alternately coupled to the clutch center member and the clutch guide member respectively. A clutch piston is located adjacent a first end one of the friction plates, for urging the friction plates into frictional engagement with one another, wherein a gap is formed between the piston and the end friction plate before the urging of the engagement of the friction plates. The lubricating structure comprises a first bore formed in the clutch guide member at a position near the first end one of the friction plates for discharging lubricating oil therethrough, and a second bore formed in the clutch center member for supplying lubricating oil to the clutch. The lubricating oil flows from the second bore, through the gap between the clutch piston and the first end friction plate, and through the first bore, before the clutch piston urges the friction plates into engagement, wherein the gap is closed and the flow of lubricating oil through the gap is stopped, when the clutch piston urges the friction plates into engagement.

REFERENCES:
patent: 3198295 (1965-08-01), Fangman et al.
patent: 3231058 (1966-01-01), Batchelor et al.
patent: 3261440 (1966-07-01), Graham et al.
patent: 3351169 (1967-11-01), McIndoe
patent: 4623055 (1986-11-01), Ohkubo
patent: 4995500 (1991-02-01), Payvar
patent: 5172799 (1992-12-01), Iijima et al.

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