F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
138/54
F16D 48/02 (2006.01) F16D 48/04 (2006.01)
Patent
CA 1265021
Abstract of the Disclosure A hydvaulic circuit construction for a power shift transmission having logical operation valves mounted on a pressure oil supply passage connecting a hydraulic clutch to a pressure oil source, the logical operation valves being operable to engage and disengage the hydraulic clutch by opening and closing the pressure oil supply passage in response to a switching operation of change speed means connected upstream of and in series to the hydraulic clutch. The pressure oil supply passage has mounted thereon a pressure control device including a first valve mechanism, a second valve mechanism and an orifice parallel-connected to the pressure oil supply passage, and an accumulator is mounted between the pressure control device and the hydraulic clutch to assure a speedy and smooth operation of the hydraulic clutch.
510723
Hasegawa Shigekazu
Machida Satoshi
Oota Yoshimi
Kubota Ltd.
Marks & Clerk
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