Liner for a pump assembly

A pump assembly for use in delivering fuel to a common rail of an internal combustion engine. The pump assembly includes a pumping plunger (28), a drive member (34) that is co-operable with the pumping plunger (28) and driven, in use, by an associated cam arrangement (12) to impart drive to the plun...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IAN THORNTHWAITE, TODD BORDEWYK, DANIEL HOPLEY
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES ORMATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHERTHAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A pump assembly for use in delivering fuel to a common rail of an internal combustion engine. The pump assembly includes a pumping plunger (28), a drive member (34) that is co-operable with the pumping plunger (28) and driven, in use, by an associated cam arrangement (12) to impart drive to the plunger (28), and thus to cause pressurisation of fuel within a pump chamber (30), and a pump head (22) provided with a plunger bore (26) within which the plunger (28) reciprocates as it is driven. A main pump housing (10) is provided with an opening (18a, 18b, 18c) and an insert member (32) is mounted within a first end of the opening. A second end of the opening receives the pump head (22). The insert member (32) is separate and distinct from both the main pump housing (10) and the pump head (22) and defines a guide path for the drive member (34) as it is driven by the cam arrangement (12), in use.