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US 6,481,641 B1Granted
Fuel injector assembly having a heat exchanger for fuel preheating
AssigneeDelphi Technologies, Inc.
InventorHarry R. Mieney
Life of this patent
Estimating the term…
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AssigneeDelphi Technologies, Inc.
InventorHarry R. Mieney
Estimating the term…
A fuel injector assembly incorporating a heat exchanger and a fuel injector and being disposable in a bore in a mounting substrate such as an internal combustion engine or a hydrocarbon fuel reformer. The exchanger includes an outer wall in direct contact with the bore and also surrounds and supports the dispensing portion of the fuel injector, forming an annular plenum space therebetween. The heat exchanger has an inlet port and an outlet port communicating with the plenum space. The exchanger outlet port is connected to an inlet port of the fuel injector, such that fuel entering the fuel injector is preheated by passing first through the heat exchanger. In some applications, it may be desirable to maintain the fuel at a high pressure to prevent premature vaporization of the fuel in the exchanger and resulting vapor lock of the fuel system.
A fuel injector assembly having a heat exchanger for transferring heat from a mounting substrate and from the fuel injector to fuel flowing through the heat exchanger to cool the fuel injector and to preheat the fuel before entering an inlet port of the fuel injector, comprising:
An internal combustion engine comprising a fuel injector assembly having a heat exchanger for transferring heat from a mounting substrate and from the fuel injector to fuel flowing through the heat exchanger to cool the fuel injector and to preheat the fuel before entering an inlet port of the fuel injector, the assembly including
A hydrocarbon reformer comprising a heat-exchanging fuel injector assembly having a heat exchanger for transferring heat from a mounting substrate and from the fuel injector to fuel flowing through the heat exchanger to cool the fuel injector and to preheat the fuel before entering an inlet port of the fuel injector, the assembly including
Dependencies are inferred from the claim text.