Injection valve with single disc turbulence generation

Details Injection valve with single disc turbulence generation Injection valve with single disc turbulence generation

2011-07-19

2011-07-19

Nguyen, Dinh Q (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Of fuel injection

C239S533300, C239S533120, C239S583000, C239S596000, C239S011000

Reexamination Certificate

active

07980485

ABSTRACT:
A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a housing, a valve seat, a metering orifice disc, and a needle. The housing has an inlet, an outlet, and a longitudinal axis extending therethrough. The valve seat is disposed proximate the outlet and includes a passage having a sealing surface and an orifice. The metering orifice disc is located at the outlet and has a plurality of metering openings extending therethrough. The needle is reciprocally located within the housing along the longitudinal axis between a first position wherein the needle is displaced from the valve seat, allowing fuel flow past the needle, and a second position wherein the needle is biased against the valve seat, precluding fuel flow past the needle. A generally annular channel is formed between the valve seat and the metering orifice disc. The channel tapers outwardly from a large height to a smaller height toward the orifice openings. A method of generating turbulence in a fuel flow through a fuel injector is also disclosed.

REFERENCES:
patent: 4057190 (1977-11-01), Kiwior et al.
patent: 4101074 (1978-07-01), Kiwior
patent: 4236674 (1980-12-01), Dixon
patent: 4532906 (1985-08-01), Hoppel
patent: 4925111 (1990-05-01), Foertsch et al.
patent: 5038738 (1991-08-01), Hafner
patent: 5244154 (1993-09-01), Buchholz et al.
patent: 5383597 (1995-01-01), Sooriakumar et al.
patent: 5449114 (1995-09-01), Wells et al.
patent: 5484108 (1996-01-01), Nally
patent: 5494124 (1996-02-01), Dove et al.
patent: 5516047 (1996-05-01), Kubach et al.
patent: 5632349 (1997-05-01), Dove et al.
patent: 5730368 (1998-03-01), Flik et al.
patent: 5762272 (1998-06-01), Tani et al.
patent: 5765750 (1998-06-01), Pace et al.
patent: 5766441 (1998-06-01), Arndt et al.
patent: 5772124 (1998-06-01), Tamaki et al.
patent: 5785254 (1998-07-01), Zimmerman et al.
patent: 5862991 (1999-01-01), Willke et al.
patent: 5899390 (1999-05-01), Arndt et al.
patent: 5921474 (1999-07-01), Zimmermann et al.
patent: 5924634 (1999-07-01), Arndt et al.
patent: 5931391 (1999-08-01), Tani et al.
patent: 6039271 (2000-03-01), Reiter
patent: 6102299 (2000-08-01), Pace et al.
patent: 6161782 (2000-12-01), Heinbuck et al.
patent: 6170763 (2001-01-01), Fuch et al.
patent: 6394367 (2002-05-01), Zane et al.
patent: 6405946 (2002-06-01), Harata et al.
patent: 6848635 (2005-02-01), Xu
patent: 6921021 (2005-07-01), Nally et al.
patent: 7191961 (2007-03-01), Okamoto et al.
patent: 11200998 (1999-07-01), None
English translation of Office Action in foreign counterpart JP Patent Application No. 2001-137685, dated Feb. 26, 2010.

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