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1. WO2020110596 - FUEL PUMP PIPE

Publication Number WO/2020/110596
Publication Date 04.06.2020
International Application No. PCT/JP2019/042912
International Filing Date 31.10.2019
IPC
F02M 55/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means
02Conduits between injection pumps and injectors
C23C 18/16 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, i.e. electroless plating
C23C 18/31 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, i.e. electroless plating
31Coating with metals
C23C 18/32 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, i.e. electroless plating
31Coating with metals
32Coating with one of iron, cobalt or nickel; Coating with mixtures of phosphorus or boron with one of these metals
F02M 37/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
CPC
C23C 18/16
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, e.g. electroless plating
C23C 18/31
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, e.g. electroless plating
31Coating with metals
C23C 18/32
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
18Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
16by reduction or substitution, e.g. electroless plating
31Coating with metals
32Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
F02M 37/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
37Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 55/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55Fuel-injection apparatus characterised by their fuel conduits or their venting means; ; Arrangements of conduits between fuel tank and pump F02M37/00
02Conduits between injection pumps and injectors ; , e.g. conduits between pump and common-rail or conduits between common-rail and injectors
Applicants
  • 臼井国際産業株式会社 USUI CO., LTD. [JP]/[JP]
Inventors
  • 池ノ谷 剛人 IKENOYA Taketo
Agents
  • 押田 良隆 OSHIDA Yoshitaka
Priority Data
2018-22143827.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) FUEL PUMP PIPE
(FR) TUYAU DE POMPE À COMBUSTIBLE
(JA) 燃料圧送配管
Abstract
(EN)
Provided is a fuel pump pipe which has high resistance to corrosive fuels, can be worked after plating by having followability properties, and is simple to produce even when the inner diameter thereof is small and suited for mass production. The fuel pump pipe comprises a base material steel tube 11 having formed on the inner surface thereof an electroless Ni-P plating layer 4 having a phosphorus content (eutectic ratio) of 1.1% to 2.0%, the electroless Ni-P plating layer 4 is constituted by an interdiffusion layer 4a including Ni-P and the base material of the base material steel tube 11 and a non-interdiffusion layer 4b of Ni-P alone formed on the outermost surface of the interdiffusion layer 4a, the layer thickness of the non-interdiffusion layer 4b is 3 µm or thicker, and the total layer thickness of the interdiffusion layer 4a and the non-interdiffusion layer 4b is between 6 µm and 16 µm inclusive.
(FR)
L'invention concerne un tuyau de pompe à combustible présentant une haute résistance aux combustibles corrosifs, pouvant être travaillé après le revêtement métallique du fait d'avoir des aptitudes au suivi, et étant simple à produire même lorsque son diamètre interne est petit et approprié pour la production en série. Le tuyau de pompe à combustible comprend un tube en acier (11) à matériau de base comportant, formée sur sa surface interne, une couche (4) de revêtement de Ni-P formé par dépôt sans courant électrique et présentant un taux de phosphore (rapport eutectique) compris entre 1,1 % et 2,0 % ; la couche (4) de revêtement de Ni-P formé par dépôt sans courant électrique est constituée d'une couche d'interdiffusion (4a) comprenant du Ni-P et le matériau de base du tube en acier (11) à matériau de base et d'une couche exempte d'interdiffusion (4b) de Ni-P formée seule sur la surface la plus à l'extérieur de la couche d'interdiffusion (4a) ; l'épaisseur de la couche exempte d'interdiffusion (4b) est égale ou supérieure à 3 µm ; et l'épaisseur de couche totale de la couche d'interdiffusion (4a) et de la couche exempte d'interdiffusion (4b) est comprise entre 6 µm et 16 µm inclus.
(JA)
腐食性燃料に対して高い耐性を有するとともに、追従性を持ちめっき後の加工が可能な燃料圧送配管であって、内径が小さい場合であっても製造が容易であり、量産にも適する、燃料圧送配管を提供する。 母材鋼管11の内表面にリン含有量(共析率)が1.1%~2.0%の無電解Ni-Pめっき層4が形成され、該無電解Ni-Pめっき層4は、母材鋼管11の母材とNi-Pの相互拡散層4aと、該相互拡散層4aの最表面に形成されたNi-Pのみの非相互拡散層4bとで構成され、かつ前記非相互拡散層4bの層厚が3μm以上で、前記相互拡散層4aと前記非相互拡散層4bの合計層厚が6μm以上16μm以下とされた燃料圧送配管である。
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