Hydraulic control apparatus
US9759314B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 2014 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Oct 13, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/1264
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic control apparatus, wherein the first switching valve receives an input of one of the hydraulic pressure from the first electromagnetic valve device and the predetermined hydraulic pressure from the third switching valve, as a switching signal pressure, the first switching valve is switched from the first state to the second state in response to the input of the switching signal pressure, and the first switching valve is held in the second state, and the second switching valve receives an input of one of the hydraulic pressure from the first electromagnetic valve device and the predetermined hydraulic pressure from the third switching valve, as a holding pressure for holding the normal supply state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.