Piston position detector having a metal cylinder rotating about an eccentric axis
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United States of America Patent
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Aug 30, 1983
Grant Date -
N/A
app pub date -
Sep 12, 1980
filing date -
Sep 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Piston position detector for generating an electrical signal varying linearly with piston travel of a piston machine. The device comprises a metal cylinder rotating about an eccentric axis synchronously with the crankshaft of the piston machine, the ratio of eccentricity to cylinder radius being substantially equal to the ratio of crank length to connecting rod length of the piston machine. The cylinder surface is faced by the probe of an eddy-current distance meter, the arrangement being such that the desired linear relation is obtained.
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