SPONTANEOUS INTAKE TYPE INTERNAL COMBUSTION ENGINE FOR VEHICLES

Title:

SPONTANEOUS INTAKE TYPE INTERNAL COMBUSTION ENGINE FOR VEHICLES

Document Type and Number:

WIPO Patent Application WO/2002/057610

Kind Code:

A1

Abstract:

A spontaneous intake type internal combustion engine for vehicles having an operating zone ranging from a no load zone to high load rotation zone, wherein operating the engine on the basis of Miller cycle in the entire operating zone including the high load rotation zone further improves fuel consumption rate, improves productivity of internal combustion engines by a simple construction, and suppresses increase in cost and weight of internal combustion engines. A spontaneous intake type internal combustion engine (E) for vehicles comprises a cylinder (2) having a piston (8) reciprocably fitted therein, and an intake valve (35) and an exhaust valve (36) which are opened and closed with a given opening/closing period over the entire operating zone ranging from no load zone to high load rotation zone. The valve closing time for the intake valve (35) is set at a predetermined valve closing time which is before the arrival at the lower dead point or after the arrival at the lower dead point when the intake inside the cylinder (2) flows back to the upstream side of the intake valve (35). Further, the piston displacement of the internal combustion engine (E) is set at a predetermined piston displacement with which the maximum necessary indicated horsepower of the internal combustion engine (E) is obtained in an operation in which the intake valve (35) is closed at the predetermined valve closing time in the high load rotation zone.

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Inventors:

KIKUCHI KAZUNORI
IIJIMA SATOSHI
SUZUKI MASATOSHI

Application Number:

PCT/JP2001/010114

Publication Date:

July 25, 2002

Filing Date:

November 20, 2001

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)

International Classes:

F02B61/06; F01L1/02; F01L1/047; F01L1/18; F02B1/04; F02B29/08; F02B61/02; F02B67/00; F02B75/16; F02D13/02; F02D15/04; F02F1/24; (IPC1-7): F02D41/04; F02D13/02; F02F7/00

Foreign References:

JPH10103123A	1998-04-21
JPS59215962A	1984-12-05
US5931124A	1999-08-03
JP2001012298A	2001-01-16
GB2300226A	1996-10-30
JPH0610678A	1994-01-18
JPH0754664A	1995-02-28

Other References: