Internal combustion engine with cooling of intake air using refr

Details Internal combustion engine with cooling of intake air using refr Internal combustion engine with cooling of intake air using refr

1993-09-08

1994-12-27

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

123542, 123563, F02M 2104

Patent

active

053755804

ABSTRACT:
A turbocharged or supercharged internal combustion motive system for utilization of gaseous fuel stored as a liquid wherein the liquefied gaseous fuel is vaporized and warmed at least partially with heat removed from the compressed intake combustion air in the turbocharger or supercharger aftercooler. In a preferred embodiment, the compressed intake combustion air is first cooled in an aftercooler against an ambiently cooled coolant and is subsequently cooled in further aftercooler heat exchange passages against an intermediate coolant which transfers heat removed from the compressed intake combustion air to the liquefied gaseous fuel. Embodiments are disclosed wherein the saturated liquefied gaseous fuel is first subcooled and then pumped to pressures high enough for direct combustion chamber injection and another embodiment discloses vaporization of the saturated liquefied gaseous fuel with compression of the vaporized gas in a compression-type injection system or by low pressure carburetion into the internal combustion engine.

REFERENCES:
patent: 3141293 (1964-07-01), Crooks
patent: 3306032 (1967-02-01), Chaffiotte
patent: 3577726 (1971-05-01), Wagner
patent: 4033135 (1977-07-01), Mandrin
patent: 4104999 (1978-08-01), Ulrich
patent: 4742801 (1988-05-01), Kelgard
patent: 5081977 (1992-01-01), Swenson
patent: 5105790 (1992-04-01), Nye, Jr.
T. Joyce, "LNG as a Transportation Fuel", The LNG Observer, Spring, 1990, vol. 1, No. 1, p. 9.

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