Hydraulic valve for a cam phaser
US10113451B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Jun 10, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/3444
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve for a cam phaser and including a housing; a hollow cylindrical piston which is supported axially movable in a central opening extending along a longitudinal axis of the housing; a supply connection feeding a hydraulic fluid; and at least a first operating connection, a second operating connection and a tank connection, wherein one of the first operating connection or the second operating connection is connectable through an interior space of the piston with the supply connection and another of the first operating connection or the second operating connection is connectable with the tank connection as a function of a position of a position of the piston along the longitudinal axis of the housing, wherein the piston includes a first flow through opening and a second flow through opening connecting the interior space of the piston with the first operating connection and the second operating connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.