Oil sprayer compress tightly screw cap and fixing method thereof

A technology of pressing nuts and fixing methods, which is applied in fuel injection devices, machines/engines, charging systems, etc., can solve the problems of inconvenient disassembly and assembly of fuel injectors, and achieve easy disassembly, effective sealing, and convenient disassembly Effect

Active Publication Date: 2013-02-20
CHINA NORTH ENGINE INST TIANJIN
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the technical problems of effective sealing of the existing fuel injector and interference with the intake and exhaust rocker arms and valve springs after the fuel injector is installed, making it inconvenient to disassemble and assemble the fuel injector

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
  • Oil sprayer compress tightly screw cap and fixing method thereof
  • Oil sprayer compress tightly screw cap and fixing method thereof
  • Oil sprayer compress tightly screw cap and fixing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Preferably, the radial thickness of the extension section is larger than 2mm, so as to ensure the reliability of the extension section under a certain pressing force. Preferably, the length of the extension section is 1 / 4 to 1 / 3 of the total length of the compression nut of the fuel injector.

[0019] The length of the extension section is adjusted according to the height of the engine cylinder head, and generally protrudes 5mm-8mm from the cylinder head.

[0020] The pressing device is a fixing method when pressing the screw and the pressure plate of the fuel injector: there is a stepped structure inside the pressure plate of the fuel injector, and the stepped structure is in contact with the top surface of the extended section of the pressure nut of the fuel injector. The screw fixes the fuel injector pressure plate, the fuel injector compression nut and the engine cylinder head as a whole.

[0021] Attached below figure 2 Further describe the plan of the injector ...

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

The invention relates to an oil sprayer compress tightly screw cap. The oil sprayer compress tightly screw cap comprises an installing section and a screw thread section, the installing section is used for installing an oil sprayer couple part, a spring and a backing block, and the screw thread section is used for connecting the compress tightly screw cap and an oil sprayer body. The oil sprayer compress tightly screw cap is characterized in that a lengthening section is arranged, and the lengthening section is located above the screw thread section. The compress tightly screw cap is matched with a pressing plate or a compress tightly sleeve, so that an oil sprayer can be fixed on a cylinder cover, the interference of oil sprayer fixing structure with a valve spring and an air inlet and outlet rocker arm is eliminated, simultaneously the fuel gas in a cylinder can be effectively sealed, and assembly and disassembly are convenient.

Description

technical field [0001] The invention belongs to the technical field of diesel engines, and in particular relates to a compression nut of a fuel injector and a fixing structure thereof. Background technique [0002] With the improvement of the overall design level of automobiles, the demand for highly compact and high-performance engines has increased. Therefore, in the engine assembly process, the design requirements of compact structure and convenient disassembly and inspection are put forward for each component under the condition of guaranteed performance. During the installation process of the fuel injector components of the engine, the required structural interfaces include the cylinder head, intake and exhaust rocker arms, valve springs, and cylinder head covers. In order to achieve the gas sealing performance in the cylinder, the fuel injector needs to be fixed in a relatively stable place with high structural strength. Therefore, the cylinder head is the best place ...

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): F02M61/14
Inventor 吴小军奚星康彦红
Owner CHINA NORTH ENGINE INST TIANJIN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap