Compressed air-operated motor employing an air distributor
US4104955A · kind A · utility
Inventor
Key dates
| Filing date | Jun 7, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Jun 7, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01B1/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressed air-operated motor driven from a rechargeable compressed air supply tank. The motor has sets of symmetrically opposing cylinders having spring-biased air admission valves and containing drive pistons connected to a crankshaft. The supply tank is connected to the admission valves through respective pilot valves of a pair controlled by relay poppet valves alternately opened by a rotating cam driven by the crankshaft. The pilot valves control the delivery of compressed air alternately to two cylinder groups comprising alternately oppositely located cylinders, so that their pistons act to drive the crankshaft in a common direction by alternate power pulsations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.