Master/slave hydraulic system with rebound compensation

Details Master/slave hydraulic system with rebound compensation Master/slave hydraulic system with rebound compensation

1986-10-02

1989-05-02

Look, Edward K.

Power plants

Pressure fluid source and motor

Pulsator

60579, F15B 700

Patent

active

048256552

ABSTRACT:
A master/slave hydraulic system (10) comprises a master cylinder (12), slave cylinders (14-22), and a rebound compensator (72) for eliminating the effects of expansibility in the system on the lower stroke of the cylinders so that accurate depth control across an agricultural implement can be achieved and maintained. The rebound compensator (72) includes a direct pressure reducing and relieving valve (74) and a check valve (86). A flow restrictor (90) is preferably provided on the high-pressure supply port of the pressure reducing and relieving valve (74).

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patent: 4221266 (1980-09-01), Fardal
patent: 4337959 (1982-07-01), Bettin
patent: 4354688 (1982-10-01), Swanson
patent: 4381036 (1983-04-01), Fardal
patent: 4409884 (1983-10-01), Boehringer
patent: 4420934 (1983-12-01), Udono
patent: 4423664 (1984-01-01), Buchl
patent: 4437309 (1984-03-01), Suzuki
patent: 4439986 (1984-04-01), Snitgen
patent: 4506898 (1985-03-01), Herron
patent: 4507923 (1985-04-01), Trabbic
patent: 4567727 (1986-02-01), Grams

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