Method and device for monitoring the direction of rotation...

Details Method and device for monitoring the direction of rotation... Method and device for monitoring the direction of rotation...

2005-12-13

2005-12-13

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

Reexamination Certificate

active

06975935

ABSTRACT:
A method and device for detecting the rotation direction of a piston engine, internal combustion engine or piston compressor. The piston engine includes at least one cylinder, a piston movable back and forth in the cylinder, a cylinder chamber formed inside the cylinder which is delimited by an inner cylinder wall and the piston, an inlet channel opening into the cylinder chamber via at least one inlet valve, an outlet channel opening into the cylinder chamber via at least one outlet valve, and at least one triggerable throttling device situated in the inlet channel. To detect the rotation direction in a reliable, timely, and simple manner, the pressure prevailing in the inlet channel is measured when a rotary motion is detected, compared with a predefinable threshold value, and the rotation direction is determined based on the comparison result, the throttling device being closed at least for the pressure measurement time.

REFERENCES:
patent: 4592309 (1986-06-01), Williams
patent: 4683852 (1987-08-01), Kypreos-Pantazis
patent: 4834044 (1989-05-01), Maas
patent: 197 22 016 (1998-12-01), None
patent: 199 33 845 (2001-01-01), None
patent: 61 023847 (1986-02-01), None
patent: 90 03508 (1990-04-01), None
Patent Abstract of Japan vol. 010 No. 174 (M-490) Jun. 19, 1986 (Feb. 01, 1986)*.

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