Method and apparatus for measuring volume

Details Method and apparatus for measuring volume Method and apparatus for measuring volume

1981-12-21

1984-02-14

Swisher, S. Clement

Measuring and testing

Volumetric content measuring

73 37, G01F 1700

Patent

active

044308914

ABSTRACT:
A method and apparatus for measuring the volume of a chamber in a part, such as the combustion chamber of an internal combustion engine cylinder head by, comparing the test chamber with a reference chamber of known volume, wherein the reference chamber is exposed to the part containing the test chamber so that ambient variables are minimized, and accurately controlled quantities of a gas are injected into each chamber and the difference in pressures in the chambers read as a function of test chamber volume, and thereafter the rate of change of pressure differences in the chambers is read as a function of chamber leakage and the volume measurement discarded if the rate of change exceeds a determined value.

REFERENCES:
patent: 2270505 (1942-01-01), Burleson
patent: 2341138 (1944-02-01), Davis
patent: 2635466 (1953-04-01), Roberts
patent: 2666326 (1954-01-01), Poole et al.
patent: 3060735 (1962-10-01), Baker
patent: 3113448 (1963-12-01), Hardway et al.
patent: 3221539 (1965-12-01), Evans et al.
patent: 4047423 (1977-09-01), Eason
patent: 4154098 (1979-05-01), Pelletier

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