Electronic bore pressure optimization mechanism
US6510779B2 · kind B2 · utility
10Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Mar 7, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic bore pressure optimization mechanism for dynamically varying the cylinder block piston bore pressure profile in a multiple piston hydraulic unit includes a valve means having a variable orifice disposed in the end cap for metering fluid between leading and trailing pistons in a transition region or between a piston in a transition region and a high or low pressure source; and means for generating a control error signal to the valve means so as to adjust the size of the variable orifice based upon the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.