Electro-hydraulic pulse motor
US4031811A · kind A · utility
5Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1972 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Jan 19, 1992 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B9/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This disclosure relates to an improved electro-hydraulic pulse motor wherein safety valves are arranged in hydraulic circuits provided for the hydraulic motor part of an electro-hydraulic pulse motor so as to release abnormal high pressure produced in the circuits due to sudden interruption of the operation of an electric pulse motor part of the electro-hydraulic pulse motor. As a result, breakage of the circuits or four way pilot valve part of the electro-hydraulic pulse motor can be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.