Center bolt oil control valve to control a cam phaser with a calibration cap having a pressure check valve and filter
US10662827B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Aug 31, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/3444
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A center bolt oil control valve including a valve housing, a piston within the valve housing, and a calibration cap having at least a pressure check valve and filter. The calibration cap is located within the valve housing and is extending out an end of the valve housing. A supply pressure port may be placed in the valve housing, wherein the supply pressure port supplies a hydraulic fluid to ports in the valve housing depending on a position of the piston. The valve housing includes a threaded portion and is fastened to a cam nose with the threaded portion, wherein a supply pressure port of the cam nose is adjacent the threaded portion. This valve provides improved design flexibility, especially for axial constrained applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.