噴射ノズル

Japanese Patent JP4838602

B2

The invention provides an injection nozzle for an internal combustion engine, the injection nozzle (2) including an outer valve member (8) received within a bore (6) provided in a nozzle body (4) and being engageable with a first seating region (20) to control fuel flow from a first delivery chamber (32) to a first nozzle outlet (22), an inner valve member (44) slidable within an outer valve bore (34) provided in the outer valve member (8) and being engageable with a second seating region (46) to control fuel flow from a second delivery chamber (62) to a second nozzle outlet (48), lifting means (80) associated with the outer valve member (8) such that movement of the outer valve member (8) is transmitted to the inner valve member (44) when the outer valve member (8) is moved through a distance greater than a predetermined distance (L), and a control chamber (7) arranged to receive pressurised fuel, in use. A first surface (10, 11) associated with the outer valve member (8) defines a first effective surface area and a second surface (38a) associated with the inner valve member (44) defines a second effective surface area, both the first and second effective surface areas being exposed to fuel pressure within the control chamber (7), wherein the first effective surface area is greater than the second effective surface area such that, following a decrease in fuel pressure within the control chamber (7), the outer valve member (8) disengages the first seating region (20) before the inner valve member (44) disengages the second seating region (46).

Michael pee cook

JP2006058168A

December 14, 2011

March 03, 2006

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Daimler AG

F02M61/10; F02M45/08; F02M47/00; F02M61/18

JP2001241370A

WO2005015003A1
WO2003040543A1

Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Osamu Hoshino

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