Portable cylinder contribution tester for a vehicle which includes a diesel engine which is controlled by an electronic circuit

  • US 5,987,974 A
  • Filed: 01/14/1998
  • Issued: 11/23/1999
  • Est. Priority Date: 01/14/1998
  • Status: Expired due to Fees
First Claim
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1. A portable cylinder contribution tester for a diesel engine, the diesel engine including a plurality of cylinders, comprising:

  • a plurality of switches, each of the plurality of switches coupled directly to and for controlling one of the plurality of cylinders; and

    a case for mounting the plurality of switches, wherein when an abnormal diesel engine operation is detected, each of the plurality of switches can be activated, wherein when one of the plurality of switches is activated and the diesel engine does not decrease in performance it is indicated that the associated cylinder is malfunctioning.

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