Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and pump or accumulator plunger
Patent
1997-02-20
1999-05-04
Weldon, Kevin
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and pump or accumulator plunger
F02M 5500
Patent
active
058993835
ABSTRACT:
A wear and scuff-resistant timing plunger for a timing assembly in a unit fuel injector for an internal combustion engine is provided. The timing plunger is formed of a high thermal expansion ceramic with a thermal expansion coefficient greater than 6.times.10.sup.-6 /.degree. C. and a hardness greater than 800 Kg/mm.sup.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.
REFERENCES:
patent: 4235374 (1980-11-01), Walter et al.
patent: 4266729 (1981-05-01), Kulke et al.
patent: 4396151 (1983-08-01), Kato et al.
patent: 4410137 (1983-10-01), Perr
patent: 4463901 (1984-08-01), Perr et al.
patent: 4531672 (1985-07-01), Smith
patent: 4794894 (1989-01-01), Gill
patent: 4806040 (1989-02-01), Gill et al.
patent: 4848286 (1989-07-01), Bentz
patent: 4951631 (1990-08-01), Eckert
patent: 4951874 (1990-08-01), Ohnishi et al.
patent: 4969600 (1990-11-01), Nicol
patent: 5007584 (1991-04-01), Rossignol
patent: 5042718 (1991-08-01), Bergmann et al.
patent: 5056488 (1991-10-01), Eckert
patent: 5067464 (1991-11-01), Rix et al.
patent: 5072709 (1991-12-01), Long et al.
patent: 5082180 (1992-01-01), Kubo et al.
patent: 5094215 (1992-03-01), Gustafson
patent: 5094397 (1992-03-01), Peters et al.
patent: 5215449 (1993-06-01), Lliga
patent: 5239951 (1993-08-01), Rao et al.
patent: 5409165 (1995-04-01), Carroll, III et al.
Ceramics for Automobiles, Hisao Sakano et al., Sankaido Co., Ltd., Apr. 15, 1987, pp. 56-57.
Bentz Joseph C.
Carroll, III John T.
Hickey Dan K.
Naylor Malcolm G.
Perr J. Victor
Cummins Engine Company, Inc.
Leedom Jr. Charles M.
Weldon Kevin
LandOfFree
Ceramic fuel injector timing plunger does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ceramic fuel injector timing plunger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic fuel injector timing plunger will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1863278