Effect of Thermal Strain on Measurement of Cylinder Pressure Engineering and Manufacturing Staff, Ford Motor Company

Format:

Conference/Event

Author/Creator:

Stein, Robert A., author.

Conference Name:

SAE International Congress & Exposition (1987-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

Cyclical exposure of a piezoelectric transducer to high temperature gas results in an error in the measured pressure due to thermal strain of the transducer diaphragm. Thermal strain results in a decrease in the measured values of IMEP and PMEP, while burn times calculated using the method of Rassweiler and Withrow are relatively unaffected. The severity of the effect can be minimized by coating the transducer diaphragm with RTV. When the effects of thermal strain persist into the intake stroke, a method of detection at low speed is to overlay and compare the firing and motoring intake stroke pressure traces

Notes:

Vendor supplied data

Publisher Number:

870455

Access Restriction:

Restricted for use by site license