Air motor and pump comprising such a motor
US10385693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2015 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/143
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention concerns an air motor comprising a piston and a housing, the piston being received in the housing and dividing the housing into two primary chambers of variable volume. Said motor comprises a first direct supply valve for supplying a first primary chamber of the two primary chambers and a second direct supply valve for supplying the other primary chamber, said two valves each being movable relative to at least one respective seat. The first valve and the second valve are mounted on a same stem movable relative to the housing in a direction parallel to the direction of movement of the piston, and the stem is configured to be moved between a first position and a second position by moving means activated by the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.