Pressure regulating device for a percussive hydraulic apparatus

Details Pressure regulating device for a percussive hydraulic apparatus Pressure regulating device for a percussive hydraulic apparatus

2004-12-02

2008-10-14

Kershteyn, Igor (Department: 3745)

Motors: expansible chamber type

Cyclically operable

Distributor forms traversed movable portion of working...

C091S235000, C091S321000, C091S328000

Reexamination Certificate

active

07434503

ABSTRACT:
A percussive apparatus comprises a body inside of which a striking piston is mounted in a cylinder bore. Two axially offset pieces are mounted inside the cylinder bore of the body while being concentric to the piston, and a deformable washer is placed between said pieces. One of the pieces is stationary with regard to the other piece that, however, is mounted in a manner that enables it to slide inside the cylinder bore and to be displaced in the direction of the stationary piece while being subjected to the action of the supply pressure of the hydraulic fluid that acts upon the surface of the moving piece facing away from the side opposite the stationary piece. The displacement of the moving piece causes the elastic washer to deform in order to create a passage with a variable cross-section on the return circuit of the hydraulic fluid to the reservoir or on a circuit that diverts, to the return circuit, a portion of the delivery flow of the apparatus whereby regulating the input pressure.

REFERENCES:
patent: 3592109 (1971-07-01), Eskridge
patent: 3991655 (1976-11-01), Bouyoucos et al.
patent: 4084486 (1978-04-01), Juvonen
patent: 6863260 (2005-03-01), Medina
patent: 630743 (1946-12-01), None
patent: 630743 (1949-10-01), None
patent: WO 00/78510 (2000-12-01), None

Affiliated with

Also associated with

Rating

Pressure regulating device for a percussive hydraulic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure regulating device for a percussive hydraulic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure regulating device for a percussive hydraulic apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3988764