US 2013/0075217 A1Published application

Hydraulic clutch

AssigneesKia Motors Corporation, Hyundai Motor Company

InventorsKangsoo Seo, Jaeyoung Jeon, Wonseok Oh, Seongwook Ji

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Abstract

A hydraulic pressure clutch includes a first connecting hub including first, second, and third oil holes, a transmission case having first, second, and third oil supply portions, an inner sleeve having first, second, and third oil passages, a boss having fourth, fifth, and sixth oil passages, an outer sleeve having seventh and eighth oil passages, a clutch drum, a second connecting hub, a first piston forming a first piston chamber, a plurality of first clutch plates, a plurality of first friction disks disposed alternately with the first clutch plates, a first balance wall forming a first balance chamber, a second piston forming a second piston chamber, a plurality of second clutch plates, a plurality of second friction disks disposed alternately with the second clutch plates, and a second balance wall forming a second balance chamber, wherein the first and second balance chambers are supplied simultaneously through one oil line.

A hydraulic pressure clutch comprising:

a first connecting hub of which a part thereof is disposed on an input shaft and bent and extended from the part and of which first, second, and third oil holes are formed thereto;
a transmission case of which a part thereof is inserted between the bent the first connecting hub and the input shaft and of which first, second, and third oil supply portions are formed to the part;
an inner sleeve which is connected to an outer portion of the first connecting hub and of which first, second, and third oil passages formed thereto;
a boss which is connected to an outer portion of the inner sleeve and of which fourth, fifth, and sixth oil passages are formed thereto;
an outer sleeve which is connected to an outer portion of the boss and of which seventh and eighth oil passages are formed thereto;
a clutch drum comprising an inner protrusion connected to an outer portion of the outer sleeve and forming a clutch mounting space and an outer protrusion forming the other clutch mounting space;
a second connecting hub connected to an outer portion of the outer sleeve;
a first piston forming first piston chamber together with the second connecting hub therebetween and being operated by hydraulic pressure input to the first piston chamber;
a plurality of first clutch plates disposed on the outer protrusion and selectively pushed by the first piston along an axial direction;
a plurality of first friction disks disposed on the first clutch hub alternately with the first clutch plates;
a first balance wall connected to the inner protrusion and forming a first balance chamber together with the first piston therebetween;
a second piston forming the second piston chamber together with the boss therebetween, and being operated by hydraulic pressure input to the second piston chamber;
a plurality of second clutch plates disposed on the inner protrusion and selectively pushed by the second piston along the axial direction;
a plurality of second friction disks disposed on the second clutch hub alternately with the second clutch plates;
and
a second balance wall forming a second balance chamber together with the second piston therebetween, wherein the first balance chamber and the second balance chamber are supplied hydraulic pressure simultaneously through one oil line.

13 more elements

Abstract

Claims4