Fuel injection system tester
First Claim
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1. A device for testing the integrity of a fuel delivery system within a vehicle comprising means for pressuring the fuel delivery system for a first predetermined period of time;
- means for measuring the fuel pressure within the fuel delivery system after the expiration of said first predetermined period of time and after the expiration of a second predetermined period of time; and
means for displaying said pressure measurements after said first and second predetermined periods of time.
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Abstract
A device for testing an automobile'"'"'s fuel delivery system, including each of the components thereof, is disclosed. The device performs a number of tests to check the ability of the fuel delivery system to maintain pressure, to determine the static and dynamic flow rates through each of the fuel injectors in the fuel system and to determine the ability of the fuel system to deliver sufficient fuel during wide-open throttle operation.
63 Citations
17 Claims
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1. A device for testing the integrity of a fuel delivery system within a vehicle comprising means for pressuring the fuel delivery system for a first predetermined period of time;
- means for measuring the fuel pressure within the fuel delivery system after the expiration of said first predetermined period of time and after the expiration of a second predetermined period of time; and
means for displaying said pressure measurements after said first and second predetermined periods of time.
- means for measuring the fuel pressure within the fuel delivery system after the expiration of said first predetermined period of time and after the expiration of a second predetermined period of time; and
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2. A device for testing individual fuel injectors in a fuel delivery system comprising a fuel injector used as a standard against which the individual fuel injectors are compared;
- means for pressurizing the fuel delivery system;
means for actuating said standard fuel injector permitting the passage of fuel therethrough;
means for measuring the time required for the fuel pressure within the fuel delivery system to drop from a first predetermined pressure to a second predetermined pressure;
means for repressurizing the fuel delivery system;
means for actuating each individual fuel injector within the fuel delivery system;
means for measuring the time required for the fuel pressure within the fuel delivery system to drop from said first predetermined pressure to said second predetermined pressure for each individual fuel injector; and
means for comparing said time measurement for each individual fuel injector with said time measurement for said standard fuel injector to produce an indication of fuel flow through each individual fuel injector. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- means for pressurizing the fuel delivery system;
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17. A device for testing a fuel delivery system comprising means for pressurizing the fuel delivery system utilizing fuel injectors for a first predetermined period of time;
- means for actuating the fuel injectors within the fuel delivery system causing the pressure within the fuel delivery system to drop to a first predetermined pressure;
means for repressurizing the fuel delivery system to a second predetermined pressure, and means for measuring the time required for the pressure within the fuel delivery system to increase from said first predetermined pressure to said second predetermined pressure.
- means for actuating the fuel injectors within the fuel delivery system causing the pressure within the fuel delivery system to drop to a first predetermined pressure;
Specification