US 5,259,195 AGranted

Fluid pressure intensifier

OwnerWilliam L. Pringleinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

The subject invention relates to a fluid pressure intensifier (32) for increasing the pressure of an incompressible fluid and comprises a fluid reservoir (112) supplying fluid to a cylinder housing (72). The housing (72) includes first inlet (88) and outlet (90) cylinders extending between opposite ends (74,76) of the housing (72) and slideably receiving first inlet (96) and outlet (100) pistons therein. Second inlet (92) and outlet (94) cylinders are spaced parallel to the first cylinders (88,90) and further extend between the housing ends (74,76) for slideably receiving second inlet (98) and outlet (102) pistons therein. The first pistons (96,100) are forced in unison axially through the housing (72) to increase the pressure of the hydraulic fluid in the first outlet cylinder (90). A fluid channel (156) allows passage of the fluid from the first outlet cylinder (90) to the second inlet cylinder (92) and thus forces the second pistons (98, 102) in unison in opposing directions through the housing (72) to further increase the pressure of the fluid in the second smaller outlet cylinder (94). The fluid is then expelled from the housing (72) through an outlet (151) to an actuating device.

A fluid pressure intensifier for increasing the pressure of an incompressible fluid in the braking system of a vehicle comprising:

housing means (72) having a longitudinal axis extending between first (74) and second (76) ends for conveying fluid therethrough;
mounting means (78) for mounting said housing means (72) to the vehicle;
a first bore (84) parallel to said longitudinal axis and extending between said first (74) and second (76) ends;
a second bore (86) spaced from and parallel to said first bore (84) and extending between said first (74) and second (76) ends;
said first bore (84) including an inlet cylinder (88) extending axially from said first end (74) and an outlet cylinder (90) extending axially from said inlet cylinder (88) to said second end (76), said inlet cylinder (88) having a diameter larger than the diameter of said outlet cylinder (90);
said second bore (86) including an inlet cylinder (92) extending axially from said second end (76) and an outlet cylinder (94) extending axially from said inlet cylinder (92) to said first end (74), said inlet cylinder (92) having a diameter larger than the diameter of said outlet cylinder (94);
an inlet piston (96,98) slideably received in each of said inlet cylinders (88,92);
an outlet piston (100,102) slideably received in each of said outlet cylinders (90,94);
fluid reservoir means (112) for storing incompressible fluid;
conduit means (116) for providing passage of the fluid from said fluid reservoir means (112) to each of said cylinders (88,90,92,94);
first end cap means (146) for closing said first end (74) and including at least on inlet (150) in fluid communication with said inlet cylinder (88) of said first bore (84);
second end cap means (154) for closing said second end (76) and including a channel (156) for providing a fluid passageway between said outlet cylinder (90) of said first bore (84) and said inlet cylinder (92) of said second bore (86);
and an outlet (151) in fluid communication with said outlet cylinder (94) of said second bore (86) for discharging the pressurized fluid from said intensifier.

10 more elements

Abstract

Claims24