Proportional solenoid valve for a camshaft adjusting device of motor vehicles
US7069951B2 · kind B2 · utility
11Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8671
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A proportional solenoid valve or a camshaft adjusting device of motor vehicles has a valve housing and a piston movably arranged in the valve housing and provided with at least one pressure medium passage. A solenoid part is connected to the valve housing and acts on the piston. The valve housing has at least one working connector, a tank connector, and a pressure connector configured to supply a pressure medium into the piston. A leakage passage is provided that connects the pressure connector at all times to the at least one working connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.