Pressure control test apparatus
US3996793A · kind A · utility
Inventor
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure control test apparatus which provides a simulation of various ambient operating conditions to a test unit such as an internal combustion engine and the like, the apparatus including a plenum chamber having air therein under closely controlled temperature and pressure limits, an intake blower for supplying air into said plenum chamber and an intake valve operable to modulate flow of air between the intake blower and the plenum chamber, an exhaust blower operative to exhaust gas from the plenum chamber and an exhaust valve positioned between the exhaust blower and the plenum chamber operable to modulate flow of gas therebetween, the plenum chamber further defining an inlet and an outlet, the inlet being connected to an intake conduit to supply air to the air intake of a test unit and the outlet communicating with an exhaust conduit for receiving exhausted gas from the test unit and returning same to the plenum chamber, also further including an exhaust gas cooler positioned within the exhaust conduit for cooling the temperature of exhausted gas from the test unit down to approximately the temperature of the air traveling through the intake conduit, the exhaust cooling syst…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.