Test stand for internal combustion engine

Details Test stand for internal combustion engine Test stand for internal combustion engine

2005-11-01

2005-11-01

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

C073S049700

Reexamination Certificate

active

06959591

ABSTRACT:
A test stand for cylinder head components of an internal combustion engine includes at least one combustion or pressure chamber. The test stand supplies a hydraulic fluid to the chamber, and controls the pressure of the hydraulic fluid to simulate pressure cycles in the chamber. The test stand controls the pressure with at least one source of high-pressure hydraulic fluid, the high-pressure being at an adjustable and constant level, at least one solenoid valve per chamber, receiving hydraulic fluid from the high-pressure source, and automatically drives each solenoid valve as a function of the pressure in the chamber and a set-point pressure, so that each solenoid valve feeds this chamber with hydraulic fluid the pressure of which is controlled at any time by the solenoid valve and simulates predetermined pressure cycles as a function of time.

REFERENCES:
patent: 3751978 (1973-08-01), Crawford
patent: 4448065 (1984-05-01), Meurer
patent: 5054314 (1991-10-01), Cofflard et al.
patent: 5272911 (1993-12-01), Beggs et al.
patent: 5585549 (1996-12-01), Brevick et al.
patent: 0747687 (1996-12-01), None

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