Relief mechanism and hydraulic circuit equipped with relief mech

Details Relief mechanism and hydraulic circuit equipped with relief mech Relief mechanism and hydraulic circuit equipped with relief mech

1998-01-27

1999-11-30

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Condition responsive control of motive fluid flow

60493, F16D 3102

Patent

active

059921480

ABSTRACT:
If a first control valve 71 is arranged so as to change between a flow position A and a throttling position C by a fluid for switching purpose guided through a pilot channel 77, the flow area of a first intermediate channel can be changed in two steps. As a result, the injection-valve opening pressure and time of a first relief valve 48 change between two types of values, whereby the physical shock occurring when a crawler vehicle stops can be switched between two types of shock.

REFERENCES:
patent: 4362018 (1982-12-01), Torii
patent: 4586332 (1986-05-01), Schexnayder
patent: 4628690 (1986-12-01), Arai et al.
patent: 5063742 (1991-11-01), Yoshimatsu
patent: 5211015 (1993-05-01), Schroeder
patent: 5531071 (1996-07-01), Asano
patent: 5772225 (1998-06-01), Brackett

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