Method and apparatus for controlling a bypass valve of a fluid circuit
US6173572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/71
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a method and apparatus for controlling the fluid flow in a fluid circuit 102. The fluid circuit 102 includes a pump 32 driven by an engine 106. The pump 32 delivers fluid to at least one actuator 44, 45 through a control valve assembly 120, 122. In addition, the pump is connected to a bypass control valve, which is connected to a fluid tank. The method includes the steps of establishing a desired fluid flow to be delivered by the pump, determining an expected fluid flow to be delivered by the pump in response to the desired fluid flow, and determining a position of the bypass control valve in response to the expected fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.