EP0161693A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fuel injection nozzle mounting apparatus
Assignee: Honda Motor Co Ltd
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Filing: 1982-11-04
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Granted: —
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Expires: 2002-11-04
Abstract
Abstract Fuel injection nozzle mounting apparatus for an engine includes a holder 40 having a stem 41, and first and second flange 43 and 44 extending laterally from opposite ends of the stem and formed with first and second through holes 43a and 44a for receiving opposite end portions of each injection nozzle therethrough. First and second resilient sealing members 50 and 60 are fitted on the opposite end portions of each injection nozzle at locations within the first and second through holes of the first and second flanges to resiliently support the nozzle against the holder. The first and second flanges of the holder are rigidly joined to an engine part and a fuel supply pipe, so that the injection nozzles are resiliently supported between the latter parts. Further, a heat insulating member 70 may be interposed between the first flange of the holder and the engine part. The heat insulating member has a third through hole 71 formed therein, aligned with the first through hole of the holder and receiving the first resilient sealing member 50 therein.
Inventors
- 👤 Hidenobu Nagase
- 👤 Shigeru Suzuki
- 👤 Shinichi Shimada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:51
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F02M61/145; F02M69/00; F02M69/04; F02M69/042; F02M69/044; F02M69/46; F02M69/462; F02M69/465; F02M2200/00; F02M2200/85; F02M2200/858
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
Fuel injection nozzle mounting apparatus for an internal combustion engine, comprising a generally U-shaped nozzle holder having two laterally extending nozzle mounting portions which support the nozzle at two regions spaced lengthwise thereof, characterised in that the said nozzle holder comprises a one-piece member including a stem extending lengthwise of the nozzle and two laterally extending nozzle mounting flanges formed with through holes which receive and support the nozzle at respective opposite end portions thereof, whereby the nozzle may be received in the said one-piece holder by insertion of its said end portions in turn in their respective through holes.
Claim 2
Dependent Claim
100 words
Fuel injection nozzle mounting apparatus for an internal combustion engine, comprising a generally U-shaped nozzle holder having two laterally extending nozzle mounting portions which support the nozzle at two regions spaced lengthwise thereof, characterised in that the said nozzle holder comprises a one-piece member including a stem extending lengthwise of the nozzle and two laterally extending nozzle mounting flanges formed with through holes which receive and support the nozzle at respective opposite end portions thereof, whereby the nozzle may be received in the said one-piece holder by insertion of its said end portions in turn in their respective through holes.
Claim 3
Dependent Claim
109 words
Apparatus as claimed in claim 1, including a first resilient sealing ring surrounding one said end portion of the nozzle adjacent a first said flange of the holder, a second resilient sealing ring surrounding the other end portion of the nozzle adjacent the second said flange of the holder, first securing means for securing said first flange of the holder to an appropriate part of an engine, and second securing means for securing said second flange of the holder to a fuel supply pipe, said first and second resilient sealing rings being arranged to resiliently support the nozzle between the said engine part and the said fuel supply pipe.
Claim 4
Dependent Claim
87 words
Apparatus as claimed in claim 2, wherein said end portions of said nozzle each have an outer circumferential surface and an end face and each includes an annular stepped shoulder formed in said outer circumferential surface and a smaller diameter portion extending from said shoulder to said end face, said first and second resilient sealing rings being fitted on said smaller diameter portions so as to be compressed by said securing means between said annular stepped shoulders and said engine part and said fuel supply pipe respectively.
Claim 5
Dependent Claim
95 words
Apparatus as claimed in claim 3, wherein said first annular resilient member has, in its free state, an inside diameter smaller than the outside diameter of said smaller diameter portion of said one end of said nozzle and an outside diameter larger than the inside diameter of the through hole in said first flange of said holder, whereby said first annular resilient member bears resiliently on both said first flange of said holder and said one end portion of said nozzle when said nozzle is secured to said engine part by said first securing means.
Claim 6
Dependent Claim
28 words
Apparatus as claimed in claim 3 or 4, wherein said first annular resilient member has its outer circumferential surface formed with a plurality of recesses spaced circumferentially thereof.
Claim 7
Dependent Claim
75 words
Apparatus as claimed in any of claims 3 to 5, wherein said nozzle includes a larger diameter intermediate portion adjacent said smaller diameter portion at said one end thereof, said intermediate portion being partly located in the through hole in said first flange of said holder, said through hole having an inside diameter larger than the outside diameter of said intermediate portion to provide an annular gap between said through hole and said intermediate portion.
Claim 8
Dependent Claim
61 words
Apparatus as claimed in any of claims 3 to 6, wherein the through hole in said first flange of said holder has an inner circumferential surface formed with an annular stepped shoulder, and an annular pressure plate is interposed between said shoulder and the adjacent end face of said first annular resilient member to prevent axial bulging of said end face.
Claim 9
Dependent Claim
36 words
Apparatus as claimed in any of claims 3 to 7, wherein said smaller diameter portion at said other end of said nozzle is defined by a tubular member fitted in the end face of the nozzle.
Claim 10
Dependent Claim
22 words
Apparatus as claimed in claim 8, further including a fuel filter member formed integrally on the inner end of said tubular member.
Claim 11
Dependent Claim
51 words
Apparatus as claimed in any claims 2 to 9, wherein said other end portion of said nozzle has an outside diameter smaller than the inside diameter of the through hole in said second flange of said holder to provide an annular gap between said other end portion and said through hole.
Claim 12
Dependent Claim
86 words
ll. Apparatus as claimed in any of claims 2 to 10, wherein said first securing means comprises at least one third through hole formed in said first flange of said holder and at least one bolt fitted through said third through hole for screwing into said engine part, and said second securing means comprises at least one fourth through hole formed in said second flange of said holder and at least one bolt fitted through said fourth through hole for screwing into said fuel supply pipe.
Claim 13
Dependent Claim
58 words
Apparatus as claimed in claim 3, further including a heat insulating member arranged to be interposed between said first flange of said holder and said engine part, said heat insulating member having a through hole formed therein and aligned with the through hole in said first flange of said holder to receive said first annular resilient member therein.
Claim 14
Dependent Claim
72 words
Apparatus as claimed in claim 12, wherein said first securing means comprises at least one third through hole formed in said first flange of said holder and at least one bolt fitted through said third through hole for screwing into said engine part, said heat insulating member having at least one fourth through hole formed therein and aligned with said third through hole, said bolt being fitted through said fourth through hole.
Claim 15
Dependent Claim
50 words
Apparatus as claimed in any preceding claim, particularly for a plural-cylinder engine having a row of fuel injection nozzles, wherein the stem of the said holder extends lengthwise of the said row, its said laterally extending flanges being formed with through holes for receiving and supporting each of said nozzles.
Claim 16
Dependent Claim
30 words
Apparatus as claimed in claim 14, wherein at least one of said flanges extends continuously along the said row of nozzles along substantially the whole length of the said stem.
References Cited (Backward Citations)
GB2023729A
Cited
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