Method for monitoring the switching process of a coupling device

Details Method for monitoring the switching process of a coupling device Method for monitoring the switching process of a coupling device

1993-10-22

1995-04-18

Chilcot, Jr., Richard E.

Measuring and testing

Simulating operating condition

Marine

123 9016, 73 497, G01M 1500, F01L 134

Patent

active

054068355

ABSTRACT:
The invention relates to a method for monitoring the switching process of a coupling device for inlet or outlet valves. The valve is actuated by two transmission elements which can be coupled to one another by means of a coupling device and are driven by two cams with different cam elevations. The coupling device consists of a bolt which is guided, so as to be capable of moving by means of a pressure medium, in two bores which are arranged on the transmission elements and are placed flush. According to the invention, an evaluation device is provided with which it is monitored whether the bolt reaches the coupled position. For this purpose, the evaluation device detects the signal of a pressure sensor arranged in the control pressure line. In this process, whether the coupled position has been reached can be detected by the occurrence of a pressure surge in the control pressure line which is caused by the striking of the bolt against a stop.

REFERENCES:
patent: 4901685 (1990-02-01), Fukuo et al.
patent: 4907550 (1990-03-01), Inoue et al.
patent: 4942853 (1990-07-01), Konno
patent: 5074145 (1991-12-01), Hattori et al.
patent: 5297505 (1994-03-01), Doll et al.
French Search Report, Jan. 28, 1994.
European Search Report, Nov. 18, 1993.

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