A method and a device for supplying fuel to an internal combustion engine

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EP 0 790 395 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.11.1997 Bulletin 1997/47

(43)	Date of publication A2:
	20.08.1997 Bulletin 1997/34

(21)	Application number: 97102329.6

(22)	Date of filing: 13.02.1997

(51)	International Patent Classification (IPC)⁶: F02B 51/00

(84)	Designated Contracting States:
	DE FR GB

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Priority:

14.02.1996 JP 26903/96

(71)	Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
	Aichi-ken (JP)

(72)	Inventors:
	Ishikiriyama, Mamoru Toyota-shi, Aichi (JP) Kamiya, Sumio Toyota-shi, Aichi (JP) Hiei, Makoto Toyota-shi, Aichi (JP) Takazawa, Nobuaki Toyota-shi, Aichi (JP) Takahashi, Yasushi Toyota-shi, Aichi (JP) Miyazaki, Syozi Toyota-shi, Aichi (JP)

(74)	Representative: Pellmann, Hans-Bernd, Dipl.-Ing.
	Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 80336 München 80336 München (DE)

(54)	A method and a device for supplying fuel to an internal combustion engine

(57) According to the present invention, the state of a liquid fuel such as diesel fuel is made a supercritical state by raising the pressure and the temperature of the fuel above the critical pressure and temperature. Then, the fuel is injected from the fuel injection valve into the combustion chamber of the engine in the supercritical state. When the fuel in the supercritical state is injected into the combustion chamber of the engine, it forms an extremely fine uniform mist in the entire combustion chamber. Therefore, the combustion of the engine is largely improved.

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