Single piece yoke stroking device for bent axis type hydraulic pumps and variable motors
US6203283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01B3/102
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device for varying the displacement of a variable displacement bent axis unit includes a one-piece yoke having a bucket portion adapted to carry a cylinder block kit of the bent axis unit, a trunnion bearing portion for swing control on one side of the bucket portion, and a trunnion portion for fluid porting on the other side of the bucket portion. The bucket portion has a bottom wall, a continuous side wall, and an open top. Inside the yoke is a pair of fluid passages intersecting the interior of the bucket portion and extending separately and entirely within the bottom wall and the side wall before opening onto the trunnion portion for fluid porting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.