Hydraulic apparatus, in particular a 2-way proportional throttle valve
US4790511A · kind A · utility
3Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1986 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Sep 12, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pilot-controlled proportional throttle valve is provided having pilot oil passage means provided in the spool of said throttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.