Engine turbocharger diagnostics

Details Engine turbocharger diagnostics Engine turbocharger diagnostics

1976-05-07

1977-09-06

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

G01M 1500

Patent

active

040460037

ABSTRACT:
The turbocharger of an internal combustion engine is diagnosed by virtue of a single pressure measurement made during an acceleration of the engine using only its accessory loading, drag and inertia as a load, instead of making a profile of pressure ratio across the turbocharger under full load conditions on a dynomometer, as in the prior art. As the engine accelerates, pressure is continuously monitored, the ratio of the rate of change of the pressure with respect to time is made, and the maximum change in pressure per unit of time recorded; the minimum pressure sensed may also be recorded as an indication of the restrictive effect of the turbocharger when not being driven to its capacity.

REFERENCES:
patent: 2389281 (1945-11-01), Staley
patent: 3270724 (1966-09-01), Dolza

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