Title:
特に内燃機関の燃料噴射装置に用いられる高圧ポンプ
Document Type and Number:
Japanese Patent JP2007501913
Kind Code:
A
Abstract:
The invention concerns a high pressure pump comprising at least one pump component (16) wherein, upon the suction stroke of a pump piston (20), fuel from the fuel supply conduit (50) is sucked by an intake valve (30), the fuel being delivered by a delivery valve (32) upon the delivery stroke of the pump piston (20). The intake valve (30) comprises a component (44) whereof one sealing surface (48) inclined towards its longitudinal axis (45) co-operates with a valve seat (42c) arranged in a valve cage (40). Said valve component (44) enables, in an open state, when the sealing surface (48) of the valve component (44) is released from the valve seat (42c), a flow cross-section between the fuel supply conduit (50) and the pump working space (24) to be cleared between said valve component (44) and the valve cage (40). The valve component (44) being opened, a zone (52) provided with the smallest flow cross-section between the valve component (44) and the valve cage (40), in the direction of the flow circulating from the fuel supply conduit (50) towards the pump working space (24), is provided downstream of the flow and the sealing surface (48) of the valve component (44).
Inventors:
Nestor Rodriguez-Amaya
Michael Meniken
Peter Blendray
Falco Bledow
Michael Meniken
Peter Blendray
Falco Bledow
Application Number:
JP2006523020A
Publication Date:
February 01, 2007
Filing Date:
January 13, 2005
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M59/46; F02M59/36; F02M59/44; F04B1/04; F04B53/10; F16K15/04; F16K15/06; F02M59/10
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel