INJECTION SYSTEM OF A FUEL INJECTION PUMP

WIPO Patent Application WO/2011/087201

A1

The injection system of the present invention relates to the injection system of a fuel injection pump wherein a plunger performs a reciprocating slide motion in the axial direction inside of the plunger chamber of a barrel for compressing fuel. The plunger has a release groove connected to the plunger chamber and a control edge connected to the release groove. A spill port is formed in the wall surface of the barrel to connect the plunger chamber and a fuel supply and discharge chamber and makes contact with the control edge so that the pressure of the plunger chamber can be released. A damping groove is formed in the upper-part outer circumference of the control edge to be connected to the upper end surface of the plunger or the release groove and provides a fine fuel flow path. The damping groove meets the spill port in advance to form the fine flow of fuel from the plunger chamber to the spill port before the control edge of the plunger meets the spill port to release pressure.

KANG SANG LIP (KR)
KIM JU TAE (KR)
AN KWANG HEAN (KR)
KIM DONG HUN (KR)
YOON WOOK HYEON (KR)
LEE YONG SEOK (KR)
PARK HYUN CHUN (KR)

PCT/KR2010/006219

July 21, 2011

September 13, 2010

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HYUN DAI HEAVY IND CO LTD (KR)
KANG SANG LIP (KR)
KIM JU TAE (KR)
AN KWANG HEAN (KR)
KIM DONG HUN (KR)
YOON WOOK HYEON (KR)
LEE YONG SEOK (KR)
PARK HYUN CHUN (KR)

F02M59/10; F02M47/00; F02M59/44

KR20060074115A	2006-07-03
KR19980047541U	1998-09-25
JPH08210222A	1996-08-20
KR200231110Y1	2001-07-19

None

KIM, SUN-YOUNG (KR)
김순영 (KR)

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