Loading patent…
AssigneeAssembly Technology & Test Limited
InventorsRonald Michael Bundock, Ray Biggs
Estimating the term…
Monitoring equipment for monitoring the performance of an engine fuel injector valve. A source of pressurized fluid and an injector valve head are provided with connection means to enable an injector valve to be connected thereto, the head being connected to the said source so that pressurized fluid from the said source is delivered to the injector valve when the equipment is in use. Regulator means of the equipment compensate for changes in pressure of the fluid at the head owing to pulsed operation of the injector valve when the equipment is in use, as well as to enable a change in pressure to be effected and maintained at the head. Flow monitoring means are arranged in the fluid path between the said source and the head to monitor the flow of fluid to the head. The source of pressurized fluid is such as to maintain a level of pressure in excess of a desired operating pressure. The regulator means comprises fluid flow control means coupled to a pressure sensor, which is in or near the test head to provide an indication of the pressure therein so that the flow control means effects an increase or a decrease to flow of fluid through the said fluid path to maintain the pressure of the fluid at the head substantially at the desired operating pressure.
Monitoring equipment for monitoring the performance of an engine fuel injector valve comprising a source of pressurized fluid and an injector valve head provided with connection means to enable an injector valve to the connected thereto, the head being connected to the said source so that pressurized fluid from the said source is delivered to the injector valve when the equipment is in use, there being regulator means of the equipment to compensate for changes in pressure of the fluid at the head owing to pulsed operation of the injector valve when the equipment is in use, as well as to enable a change in pressure to be effected and maintained at the head, and flow monitoring means in the fluid path between the said source and the head to monitor the flow of fluid to the head, wherein the source of pressurized fluid is such as to maintain a level of pressure in excess of a desired operating pressure, and wherein the regulator means comprises fluid flow control means coupled to a pressure sensor, which is at the test head to provide an indication of the pressure therein so that the flow control means effects an increase or a decrease to flow of fluid through the said fluid path to maintain the pressure of the fluid at the head substantially at the desired operating pressure.
Dependencies are inferred from the claim text.