Hydraulic systems

Details Hydraulic systems Hydraulic systems

1981-04-20

1984-02-07

Garrett, Robert E.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91446, 91463, 91468, 137501, 13759613, 251 48, 251 64, 251121, F15B 1108, F15B 1304, F16K 3112

Patent

active

044296215

ABSTRACT:
An hydraulic system: a power assisted vehicle steering system which includes such an hydraulic system and a method of alleviating noise in an hydraulic system. The hydraulic system as applied to a vehicle steering gear (1) has an open center valve (3) which directs hydraulic fluid under pressure derived from a pump (12) and in response to a steering maneuver through a shaft (4) to a servo motor of the gear (1). Downstream of the open center valve (3) is a restrictor (8) through which hydraulic fluid from the valve (3) passes to a reservoir (11). The restriction effected by the restrictor (8) to fluid flow from the valve (3) to the reservoir is variable to provide a throttling action and a back pressure in the line (6) to alleviate noise in the valve (3).

REFERENCES:
patent: 2845901 (1958-08-01), MacDuff
patent: 3086551 (1963-04-01), Gordon
patent: 3439697 (1969-04-01), Blanchette et al.
patent: 3749112 (1973-07-01), Nishikawa et al.
patent: 4178962 (1979-12-01), Tennis
patent: 4329912 (1982-05-01), de Maight et al.

Affiliated with

Also associated with

Rating

Hydraulic systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2156756