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Diesel injector and method of manufacturing diesel injector

A technology of injectors and fuel injectors, applied in the direction of manufacturing tools, fuel injection devices, special fuel injection devices, etc., can solve problems such as engine performance degradation

Inactive Publication Date: 2020-03-24
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion of the fuel injection openings can therefore result in reduced engine performance in terms of torque and / or fuel economy

Method used

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  • Diesel injector and method of manufacturing diesel injector
  • Diesel injector and method of manufacturing diesel injector
  • Diesel injector and method of manufacturing diesel injector

Examples

Experimental program
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Embodiment Construction

[0053] refer to Figure 3a with Figure 3b According to an arrangement of the present disclosure, a fuel injector (eg, a diesel fuel injector) 300 includes an injector body 310 defining an interior space 320 of the fuel injector wherein fuel is maintained at an injection pressure prior to being injected. The fuel injector 300 also includes a needle 330 movable within the interior space to control the operation of the injector 300 .

[0054] The injector body 310 includes a first thickness of material 312 . The first thickness of material 312 extends outwardly (eg, relative to the interior space 320 ), from an inner extent 312a of the first thickness of material to an outer extent 312b of the first thickness of material. Inner extent 312a defines an inner surface 310a of injector body 310 that at least partially defines interior volume 320 of fuel injector 300 .

[0055] The thickness of the first thickness material 312, eg, the dimension defined between the inner extent 312...

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PUM

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Abstract

A diesel fuel injector for an internal combustion engine is provided. The diesel fuel injector comprises an injector body, the injector body comprising a first thickness of material, wherein an injection passage for injecting fuel using the fuel injector is formed in the first thickness of material, the injection passage defining an opening through which fuel is sprayed from the injector; and a second thickness of material, wherein the second thickness of material forms an outer surface of the injector body and wherein the second thickness of material extends around the injection passage, spaced apart from the injection passage opening, such that condensation that may contain acidic compounds from the exhaust gas which can cause corrosion of the openings will form on the outer surface of the injector body and are positioned away from the opening of the injection passage. A method of manufacturing a diesel fuel injector is also provided.

Description

technical field [0001] The present disclosure relates to diesel injectors, and particularly, but not exclusively, to diesel injectors having improved corrosion resistance. Background technique [0002] refer to figure 1 , a diesel engine assembly 100 for a motor vehicle includes an intake system 110 , an engine 120 and an exhaust system 140 . [0003] The air intake system 110 includes an air inlet 112 and an air intake duct 114 . During operation of engine 120 , air is drawn into intake system 110 via air inlet 112 and delivered by intake conduit 114 to intake manifold 122 of engine 120 . [0004] The engine 120 includes an inlet manifold 122 , cylinders 124 and an outlet manifold 126 . A piston 128 is provided within cylinder 124 and is configured to reciprocate within cylinder 124 during a combustion cycle of engine 120 . Combustion chamber 124 a of cylinder 124 is defined by one side of piston 128 , walls of cylinder 124 and cylinder head 130 . [0005] Engine 120 a...

Claims

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Application Information

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IPC IPC(8): F02M61/16F02M61/18F02M61/10
CPCF02M61/10F02M61/16F02M61/1806F02M61/166F02M2200/05F02M2200/9038F02M2200/9046F02M61/1833B23C3/00F02M61/14F02M61/168
Inventor C·S·纽曼G·M·库达尔
Owner FORD GLOBAL TECH LLC
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