Measuring device for volume of engine combustion chamber

Details Measuring device for volume of engine combustion chamber Measuring device for volume of engine combustion chamber

2006-03-28

2006-03-28

McCall, Eiric S. (Department: 2855)

Measuring and testing

Test stand

For engine

Reexamination Certificate

active

07017401

ABSTRACT:
A measuring device used in a manufacturing process of an engine, to determine the volume of a complex shaped combustion chamber precisely and quickly in a dry state. A reference chamber is mounted on a combustion chamber of a engine head block which is placed upside down, cyclic volume variation is differentially produced in the internal space of the reference chamber and the internal space of the combustion chamber by a speaker, the ratio of the magnitude of cyclic pressure variations generated within the two spaces is measured, and the difference in volume between the combustion chamber and a standard vessel, having the reference chamber similarly mounted thereto, is obtained based on the ratio of the magnitude of the pressure variations when the reference chamber is mounted on the combustion chamber and the ratio of the magnitude of pressure variations when the reference chamber is mounted on the standard vessel.

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patent: 5824892 (1998-10-01), Ishii
patent: 59-164916 (1984-09-01), None
patent: 05-223616 (1993-08-01), None
patent: 08-029232 (1996-02-01), None

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