Method and system for regulating hydraulic pressure in heavy equipment
US6530529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Oct 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/022
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention provides a method and system for regulating pressure equalization in hydraulic mechanisms. The system includes a main body, a thermal element positioned within the main body, a pin positioned adjacent to the thermal element, and an orifice spool in communication with the pin. The thermal element expands to force the pin to reposition the orifice spool, and restrict fluid flow through the main body. The method includes expanding a thermal polymer when temperature increases, contracting the thermal polymer when the temperature decreases, and metering fluid flow based on the expanding and contracting of the thermal polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.