Positive displacement pump or motor utilizing a self-lubricated bearing
US4862789A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Feb 1, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A variable speed pressure energy translating device including a plurality of axially extending pistons and associated cylinders and a yoke engaged by the pistons and pivoted on a transverse axis for varying the displacement thereof, and a housing having spaced saddle bearing seats. The yoke has spaced complementary saddle bearing engaging portions and an arcuate bearing is seated in each of said seats. Each bearing comprises an arcuate body of polymeric material and an arcuate reinforcing member embedded in the body and having a plurality of perforations throughout which are fixed in the reinforcing member with the polymeric material extending through said perforations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.