Gas operated engine
US3978672A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1973 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Dec 5, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This is a multi-cylinder engine with a main piston and an auxiliary piston in each cylinder. The main piston is operated by means of compressed gas as a propellant. The auxiliary piston is operated by a hydraulic system controlled by movement of the main piston, and by a valve in the hydraulic system also controlled by movement of said main piston. The engine can have four engine cylinders. Compressed gas is sequentially applied to the cylinders for about 90.degree. rotation of the crank shaft for each cylinder. The angular degree of rotation of the crank shaft during which compression gas is delivered to the individual cylinders can be varied while the engine keeps operating. Liquid gas vaporizes to gaseous state for use in the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.