Anti-cavitation and pressure modulating relief valve for control

Details Anti-cavitation and pressure modulating relief valve for control Anti-cavitation and pressure modulating relief valve for control

1976-10-15

1978-09-19

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91453, 137106, F15B 1108, F15B 1302

Patent

active

041145160

ABSTRACT:
A construction vehicle has a work implement, such as a bucket-carrying boom, pivotally mounted thereon to be raised and lowered by one or more double-acting hydraulic cylinders. A directional control valve is conditioned to selectively communicate pressurized fluid to the rod end of each cylinder, for example, through a check valve. When the fluid pressure in the rod end of the cylinder exceeds a predetermined level, a pilot signal will be communicated to a modulating valve which will open to closely control and modulate the flow of the fluid exhausted from the head end of the cylinder. A pilot relief valve is interconnected between the head end of the cylinder and the modulating valve to cooperate therewith to relieve excessive fluid pressures. The above system is duplicated for selectively pressurizing the head end of the cylinder and for exhausting the rod end thereof.

REFERENCES:
patent: 2483312 (1949-09-01), Clay
patent: 2756724 (1956-07-01), Stewart et al.
patent: 3181430 (1965-05-01), Freedy et al.
patent: 3213874 (1965-10-01), Schmiel et al.
patent: 3250185 (1966-05-01), Tennis et al.
patent: 3266381 (1966-08-01), Rohde
patent: 3423136 (1969-01-01), Lohbauer
patent: 3507298 (1970-04-01), Ratliff
patent: 3817154 (1974-06-01), Martin
patent: 3857404 (1974-12-01), Johnson
patent: 3967532 (1976-07-01), Kokaly

Affiliated with

Also associated with

Rating

Anti-cavitation and pressure modulating relief valve for control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-cavitation and pressure modulating relief valve for control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-cavitation and pressure modulating relief valve for control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2113123