Fluid joining device for power construction vehicles

Details Fluid joining device for power construction vehicles Fluid joining device for power construction vehicles

1996-12-10

1998-12-29

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60429, 60430, 91461, F16D 3102

Patent

active

058529349

ABSTRACT:
A fluid joining device for construction vehicles is disclosed. The device has a bypass line control valve which is mounted to a second center bypass line of the second pump. The bypass line control valve normally opens the second center bypass line but selectively closes the second center bypass line in response to a pilot pressure. A second pilot line control valve is mounted to a second pilot line and controls the second pilot line in response to an outside signal. The second pilot line extends from the first pilot line control valve and selectively drives the first pilot line control valve. The device selectively performs the fluid joining function in accordance with operational conditions of the actuators, thus smoothly operating the actuators and improving operational effect of the construction vehicle.

REFERENCES:
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patent: 4759183 (1988-07-01), Kreth et al.
patent: 4875337 (1989-10-01), Sugiyama et al.
patent: 4986072 (1991-01-01), Kubomoto
patent: 5083428 (1992-01-01), Kubomoto et al.
patent: 5148676 (1992-09-01), Moriya et al.
patent: 5485724 (1996-01-01), Nozawa et al.
patent: 5692377 (1997-12-01), Moriya et al.

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