Load reaction steering unit for unequal area cylinder

Details Load reaction steering unit for unequal area cylinder Load reaction steering unit for unequal area cylinder

1999-01-13

1999-11-30

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

60384, 91467, F15B 1304

Patent

active

059924586

ABSTRACT:
A fluid controller (15) of the type which controls the flow of fluid to an unequal area steering cylinder (25), wherein the controller is of the load reaction type. The controller (15) includes valving (27) which, when it is in neutral (FIGS. 1 and 5), defines a load reaction fluid path (LR) permitting fluid communication between the control fluid ports (21, and 23) through the fluid meter (29) in response to an external load imposed on the cylinder (25). In accordance with the invention, the valving (27) includes a fluid path (97,95,99,71,75) between the load reaction fluid path (LR) and the return port (19), when the valving is in neutral. When the rod end chamber (A) is contracting, fluid is drawn from the return port into the load reaction fluid path (LR), preventing cavitation, and when the head end chamber (B) is contracting, fluid flows from the load reaction fluid path (LR) to the return port (19), preventing pressure intensification.

REFERENCES:
patent: Re25126 (1962-02-01), Charlson
patent: 5638864 (1997-06-01), Haarstad et al.
patent: 5819532 (1998-10-01), Wang et al.

Affiliated with

Also associated with

Rating

Load reaction steering unit for unequal area cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load reaction steering unit for unequal area cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load reaction steering unit for unequal area cylinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1660236