Hydraulic pressure apparatus with air scavenging

Details Hydraulic pressure apparatus with air scavenging Hydraulic pressure apparatus with air scavenging

1992-01-31

1992-12-01

Butler, Douglas C.

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

188316, 18832222, 474110, B25B 106

Patent

active

051674025

ABSTRACT:
In a hydraulic tensioner, shock absorber or lash adjuster having a plunger in a cylinder filled with hydraulic fluid, and having a coiled compression spring acting on the plunger in a pressure chamber on one side of the plunger, air scavenging through the restricted space between the plunger and the cylinder wall is improved by providing radial grooves either on a face of the plunger contacted by the spring, or on the spring-contacting face of a plug which is located between the spring and the plunger. The radial grooves enable air to escape from the interior of the coil spring and move toward the cylinder wall. The grooves increase in depth proceeding from the interior of the spring toward the exterior thereof.

REFERENCES:
patent: 2752149 (1956-06-01), Forcellini
patent: 4708696 (1987-11-01), Kimura et al.
patent: 4796732 (1989-01-01), Kong
patent: 4828080 (1989-05-01), Locher
patent: 4909777 (1990-03-01), Inoue et al.
patent: 4911679 (1990-03-01), Inoue et al.
patent: 4928799 (1990-05-01), Zschiesche
patent: 4950209 (1990-08-01), Kawashima et al.
patent: 5087225 (1992-02-01), Futami et al.

Affiliated with

Also associated with

Rating

Hydraulic pressure apparatus with air scavenging 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 pressure apparatus with air scavenging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic pressure apparatus with air scavenging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-499081