Ram jet engine construction and a valve control for proportioning fuel rich gas of ram jet rocket engines
US4449361A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Mar 4, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K7/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ram jet engine comprises a wall structure defining a precombustion chamber having a solid fuel which when ignited can raise fuel rich gases which flow through a valve housing passage and into a main combustion chamber where final combustion takes place. A valve is provided in the valve housing which includes a shaft portion which is driven for example by an electric motor to rotate a valve body between two end positions in which the valve body is shifted from a position substantially blocking off all flow through the valve passage to one in which it permits a maximum preselected flow. The valve body is advantageously journalled on a shaft and is provided with a hub portion which embraces the shaft and protects it from the hot gases. The valve body is shaped as a cylindrical wedge tapering from the widest portion of one end to a narrowest portion at the opposite end. The valve body is oriented in the valve passage so that with its widest end facing the precombustion chamber it substantially blocks off the flow of the gas. When it is rotated so that its narrowest end faces toward the precombustion chamber a maximum amount of gas flow as desired is permitted to flow through the pass…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.