Fuel injector testing device

Patent · Tue Dec 15 04:00:00 EST 1987

OSTI ID:5371807

Young, J H

A portable fuel injector testing device is described for supplying a test fluid, under a preseleted pressure, to a fuel injector of the type utilized for injecting fuel in an internal combustion engine to test and visually view the fuel spray pattern of the fuel injector when the injector is removed from the engine. The fuel injector has an inlet port for receiving the fuel, an outlet nozzle for generating the fuel spray pattern, and internal electrical control means. The fuel injector testing device is electrically powered by a suitable electrical power supply and comprises: a reservoir for holding the test fluid; pumping means for pumping the test fluid, injector supply means for selectively engaging, and communicating the test fluid to, pressure regulating means for maintaining the test fluid supplied to the fuel injector at the preselected pressure, a first electrical control circuit connected between the pump and the electrical power supply for selective operation of the pump; a second electrical control circuit connected to the first electrically controlled valve for selectively controlling flow of the test fluid to the fuel injector; and a thrid electrical control circuit connected to the electrical control means of the injector to selectively energize the control means to produce the spray pattern when the test fluid is provided to the fuel injector by the first electrically controlled valve.

• Assignee: NOV; EDB-88-073007; NOV-88-001169
• Patent Number(s): US 4712421
• OSTI ID: 5371807
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
ENGINES
FLUID MECHANICS
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
HEAT ENGINES
HYDRAULICS
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
MECHANICS
METERS
MONITORING
PRESSURE CONTROL
PUMPS
SPRAYS
TESTING
WORKING FLUIDS