Piston position detector having a metal cylinder rotating about

Details Piston position detector having a metal cylinder rotating about Piston position detector having a metal cylinder rotating about

1980-09-12

1983-08-30

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

123414, 324166, G01B 714, G01P 354

Patent

active

044019467

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.

REFERENCES:
patent: 3491289 (1970-01-01), Petrini
patent: 4284916 (1981-08-01), Onodera et al.

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