Adapter for diesel-engine-timing meter
First Claim
1. An adapter enabling use of a spark-ignited engine calibrator to calibrate a diesel-engine-timing meter, the diesel timing meter including an optical detector for producing an electrical signal in response to light developed during combustion in a diesel engine, the optical detector being carried by a detector housing, a magnetic probe for producing a signal indicative of a top dead center event, a display for engine speed, and a display for the amount of timing angle, the calibrator including means for generating at a terminal a series of first pulses, means for generating at a jack a series of second pulses, the jack being constructed to receive the magnetic probe, a first selector for establishing the angle between corresponding first and second pulses, and a second selector for establishing the frequency of the pulses, said adapter comprising inductive means adapted to be clipped onto the terminal for supplying a series of inductive signals in response to the series of first pulses, rectifier means coupled to said inductive means for supplying a flash voltage substantially at the inception of each inductive signal, a light source coupled to said rectifier means and being responsive to the flash voltages therefrom to flash, and an adapter housing constructed to mate with the detector housing, said light source being mounted in said adapter housing and arranged to direct the flashes toward the optical detector.
1 Assignment
0 Petitions
Accused Products
Abstract
The adapter includes a housing containing a rectifier for supplying flash voltages to an LED. The rectifier rectifies inductive signals derived from an inductive pickup. The adapter can be used to enable a spark-ignited engine calibrator to calibrate a diesel-engine-timing meter by converting the inductive electrical signals from the calibrator to light signals for the diesel timing meter. The adapter also can be used to enable a diesel-engine-timing meter and analyze and time a spark-ignited engine by converting the inductive pulses derived from a spark plug wire into light impulses for the diesel-engine-timing meter.
10 Citations
18 Claims
- 1. An adapter enabling use of a spark-ignited engine calibrator to calibrate a diesel-engine-timing meter, the diesel timing meter including an optical detector for producing an electrical signal in response to light developed during combustion in a diesel engine, the optical detector being carried by a detector housing, a magnetic probe for producing a signal indicative of a top dead center event, a display for engine speed, and a display for the amount of timing angle, the calibrator including means for generating at a terminal a series of first pulses, means for generating at a jack a series of second pulses, the jack being constructed to receive the magnetic probe, a first selector for establishing the angle between corresponding first and second pulses, and a second selector for establishing the frequency of the pulses, said adapter comprising inductive means adapted to be clipped onto the terminal for supplying a series of inductive signals in response to the series of first pulses, rectifier means coupled to said inductive means for supplying a flash voltage substantially at the inception of each inductive signal, a light source coupled to said rectifier means and being responsive to the flash voltages therefrom to flash, and an adapter housing constructed to mate with the detector housing, said light source being mounted in said adapter housing and arranged to direct the flashes toward the optical detector.
- 10. An adapter enabling use of a diesel-engine-timing meter to time a spark-ignited engine having at least one spark plug, a distributor conductor connected thereto in which a series of pulses of electrical current is generated as the spark plug fires, a rotating part having a surface irregularity therein, and means defining a receptacle and located so that the surface irregularity passes thereby, the diesel timing meter including an optical detector for producing an electrical signal in response to light developed during combustion in a diesel engine, the optical detector being carried by a detector housing, a magnetic probe insertable into the receptacle for producing a signal indicative of a top-dead-center event, a display for engine speed, and a display for the amount of timing angle, said adapter comprising inductive means adapted to be clipped onto the distributor conductor for supplying a series of inductive signals in response to the series of first pulses, rectifier means coupled to said inductive means for supplying a flash voltage substantially at the inception of each inductive signal, a light source coupled to said rectifier means and being responsive to the flash voltages therefrom to flash, and an adapter housing constructed to mate with the detector housing, said light source being mounted in said adapter housing and arranged to direct the flashes toward the optical detector.
Specification