Open center control valve configured to combine fluid flow received from multiple sources
US11460053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2021 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Apr 22, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6355
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An example valve housing comprises: a longitudinal bore; a first and second workport passages intercepting the longitudinal bore and configured to be fluidly coupled to an actuator; a first and second return cavities intercepting the longitudinal bore; a first inlet port configured to be fluidly coupled to a first source of fluid; a second inlet port configured to be fluidly coupled to a second source of fluid; an outlet port fluidly coupled to the first and second return cavities and configured to be fluidly coupled to a reservoir; a first dual-wing passage fluidly coupled to the first inlet port; a second dual-wing passage fluidly coupled to the second inlet port; and a third dual-wing passage fluidly coupled to the second inlet port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.