EP 0132798 A3 19851030 - INJECTOR PUMP UNIT FOR FUEL INJECTION AT INTERNAL-COMBUSTION ENGINES

Title (en)

INJECTOR PUMP UNIT FOR FUEL INJECTION AT INTERNAL-COMBUSTION ENGINES

Publication

EP 0132798 A3 19851030 (DE)

Application

EP 84108578 A 19840720

Priority

DE 3327398 A 19830729
DE 3411406 A 19840328

Abstract (en)

[origin: US4648556A] A pump/nozzle unit having a piston injection pump and an injection nozzle which includes a pump piston that is driven via a drive tappet and is rotatable via a regulating sleeve. The regulating sleeve is inserted into a recess on the end face of the pump housing and is axially secured in its installed state by means of a guide bushing. The guide bushing comprises a guide part for the drive tappet and a flange radially protruding beyond the outer diameter of the tappet spring, the flange being secured on the pump housing by a holder mechanism. The forces exerted upon the pump/nozzle unit during operation are absorbed by a securing arrangement. The drive assembly unit, including the drive tappet, tappet spring, guide bushing and pump piston, which is held together by a loss-preventing device, can be mounted outside the pump/nozzle unit and removed as a unit for purposes of mounting and inspecting the regulating sleeve, and even in the demounted or disassembled state of the pump/nozzle unit this drive assembly unit remains joined to the pump/nozzle unit by the holder mechanism.

IPC 1-7

F02M 57/02; F02M 59/28; F02M 59/48

IPC 8 full level

F02M 57/02 (2006.01); F02M 59/28 (2006.01); F02M 59/48 (2006.01)

CPC (source: EP US)

F02M 57/02 (2013.01 - EP US); F02M 57/023 (2013.01 - EP US); F02M 59/28 (2013.01 - EP US); F02M 59/48 (2013.01 - EP US)

Citation (search report)

[AD] US 2144862 A 19390124 - TRUXELL JR CLYDE W
[A] GB 617434 A 19490207 - GEN MOTORS CORP
[A] US 2628866 A 19530217 - PURCHAS JR WILLIAM J, et al

Designated contracting state (EPC)

AT DE FR GB IT

DOCDB simple family (publication)

EP 0132798 A2 19850213; EP 0132798 A3 19851030; EP 0132798 B1 19870520; DE 3411406 A1 19850207; DE 3463822 D1 19870625; US 4648556 A 19870310

DOCDB simple family (application)

EP 84108578 A 19840720; DE 3411406 A 19840328; DE 3463822 T 19840720; US 63090884 A 19840713