Hydraulic motor
US5381723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Aug 5, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C14/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a hydraulic motor having a motor body comprising a first and a second part (71, 72) which are joined to each other in a parting plane (74). A motor chamber (2) with driving cogwheels (10, 11) is formed by borings (84, 85), which extend from the parting plane into a certain depth in at least one of the first and second parts (71, 72). A by-pass conduit (15) is provided between the inlet and outlet hydraulic conduits of the motor chamber. In the by-pass conduit there is provided a main valve (20) for closing and opening the by-pass conduit for starting and for stopping the hydraulic motor, respectively. The by-pass conduit is formed by portions (16, 17) of a first (100) and a second (101) connection between the parting plane (74) and the inlet conduit (5), and between the parting plane (74) and the outlet conduit (7), respectively, and by a cross link (18) between the first and second connections (100, 101).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.