Check patentability & draft patents in minutes with Patsnap Eureka AI!

Support structure of fuel injector

A fuel injector and support structure technology, applied in the direction of fuel injection devices, low-pressure fuel injection, special fuel injection devices, etc., can solve the problem of increasing the axial length of fuel injectors

Inactive Publication Date: 2006-03-22
NISSAN MOTOR CO LTD +1
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, it is necessary to separately arrange a space for installing a coil spring and at least one space for installing a connector in the axial direction, so that the axial length of the fuel injector inevitably increases.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Support structure of fuel injector
  • Support structure of fuel injector
  • Support structure of fuel injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] See attached figure 1 , A cylinder block 15 and a cylinder head 5 arranged on the cylinder block are provided in an in-cylinder injection type internal combustion engine. A cylinder 15a is formed in the cylinder block 15, and the piston 12 is installed in the cylinder 15a. A combustion chamber 13 inside the cylinder 15 a is formed by the piston 12 , the wall surface of the cylinder 15 , and the cylinder head 5 . An intake port 7 and an exhaust port 8 that open to the combustion chamber 13 are formed in the cylinder head 5 . An intake valve 9 is arranged in an opening 7 a of the intake duct 7 facing the combustion chamber 13 . An exhaust valve 10 is arranged in an opening 8 a of the exhaust duct 8 facing the combustion chamber 13 .

[0021] A spark plug 11 is mounted in the cylinder head 5 , the tip of which points toward the center of the combustion chamber 13 . A fuel injector 1 is installed in a positioning hole 18 in the cylinder head 5 , wherein the positioning ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A cylindrical fuel injector ( 1 ) has a projecting part ( 2 ) projecting in a lateral direction. A cylinder head ( 5 ) has a hole ( 18 ) for inserting the fuel injector ( 1 ). An elastic member ( 6 ) is formed in a cylindrical shape with a notch to have a C-shaped cross-section. The elastic member is fitted to the fuel injector ( 1 ) on the opposite side from the projecting part ( 2 ) to elastically support the fuel injector ( 1 ) in a state where a tip ( 1 a) of the fuel injector ( 1 ) is inserted into the hole ( 18 ). A support member ( 3 ) supports the elastic member ( 6 ) and a snap ring ( 16 ) prevents deformation of the elastic member ( 6 ) in a lateral direction with respect to an axis of the fuel injector ( 1 ) under a compressive load exerted by the engine member ( 5 ) and the support member ( 3 ).

Description

technical field [0001] The invention relates to a support structure for a fuel injector of an internal combustion engine. Background technique [0002] The fuel injector on an in-cylinder injection type internal combustion engine is usually arranged in a hole made in the cylinder head so that the tip of the injector faces the combustion chamber. The fuel injector on a port-injected internal combustion engine is generally positioned in a hole formed in the intake manifold body so that the tip of the injector faces the intake port of the engine. In both cases, the fuel injector is made cylindrical, and a support member pushes the fuel injector in the direction towards the tip by means of a spring and limits the displacement of the fuel injector, wherein the support The components are fixed to the cylinder head or intake manifold by bolts and the like. [0003] However, if the dimensions of various parts of the fuel injector are not uniform, the direction of the load acting o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02M61/14F02M55/02
CPCF02M69/465F02M61/14F02M2200/856
Inventor 川本裕东裕志藤原靖
Owner NISSAN MOTOR CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com