EP 0683314 B1 19991215 - Fuel pressurizing plunger assembly for a compression ignition engine
Title (en)
Fuel pressurizing plunger assembly for a compression ignition engine
Title (de)
Kraftstoffdruckerzeugende Kolbenanordnung für eine druckgezündete Brennkraftmaschine
Title (fr)
Arrangement de piston mettant du combustible sous pression pour un moteur à allumage par compression
Publication
Application
Priority
US 24558994 A 19940518
Abstract (en)
[origin: EP0683314A1] A wear and scuff-resistant timing plunger (12) for a timing assembly in a unit fuel injector (10) for an internal combustion engine is provided. The timing plunger (12) is formed of a high thermal expansion ceramic with a thermal expansion coefficient greater than 6x10<-><6>/ DEG C and a hardness greater than 800 Kg/mm<2>, which maintains a desired diametral clearance and efficient plunger function without scuffing or sticking under the axial, tangential and pressure loads encountered in the fuel injector operating environment. Preferred high thermal expansion ceramics are zirconia, alumina-zirconia and alumina. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 57/02 (2006.01); F02M 59/44 (2006.01)
CPC (source: EP)
F02M 57/023 (2013.01); F02M 57/024 (2013.01); F02M 59/445 (2013.01)
Citation (examination)
EP 0677656 A1 19951018 - CUMMINS ENGINE CO INC [US]
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0683314 A1 19951122; EP 0683314 B1 19991215; DE 69513880 D1 20000120; DE 69513880 T2 20000420; JP 3223072 B2 20011029; JP H08105362 A 19960423
DOCDB simple family (application)
EP 95107461 A 19950517; DE 69513880 T 19950517; JP 11965195 A 19950518