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Class 123/616 - Piezoelectric sensor


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein the position sensor is a device in
No. of patents: 5
Last issue date: 01/11/2005


NumberTitleIssue Date
6840236Engine control device
To accurately detect occurrence of erroneous detection of a crank pulse associated with dropout of a crank pulse or occurrence of noise. A cogless section is provided in cogs provided on an outer periphery of a crankshaft for transmitting a crank pulse. Occur...
01/11/2005
4922198Displacement sensor including a piezoelectric element and a magnetic member
In the embodiments described in the specification, a device having gear teeth to provide magnetic asymmetries rotates adjacent to a permanent magnet which is part of a mechanical mounting for a piezoelectric transducer. Relative motion between the gear te...
05/01/1990
4677378Displacement sensor including a magnetically responsive member and a pair of piezoelectric elements
A displacement sensor is provided with first and second piezoelectric elements, a pair of electrodes at one and the other ends of each of the first and the second piezoelectric elements; a permanent magnet mechanically fixed to one end of the first piezoe...
06/30/1987
4416245Apparatus for distributing electrical signals
A distributor for an ignition system that includes a plurality of optical switches (20) and a rotating member (40) having two windows (41, 42) spaced 180 degrees apart so that each switch is activated twice for each revolution of the distributor shaft. Th...
11/22/1983
4275690Ignition distributor
An ignition distributor is disclosed which comprises an input terminal, output terminals, a rotor adapted to rotate with rotation of an engine and provided at its one end with a magnet, a first electrode facing the rotor and coupled to the input terminal,...
06/30/1981
 
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