Hydraulic pressure transformer
US6460333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Feb 25, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/303
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic pressure transformer has a port block which is attached to an end cap. The end cap includes a plurality of ports opening at an end face and at least one actuation port opening at or near a peripheral surface. A barrel which is rotatable about an axis includes a second end face and a plurality of cylinders having respective cylinder ports which open at the second end face. A port block disposed between the first end face and the second end face is rotatable about an axis and has a first face surface, a second face surface and a plurality of ports extending between the first face surface and the second face surface. The port block includes a radial periphery and at least one vane extending radially outward from the radial periphery to a position adjacent the peripheral surface of the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.