Unlock instant, AI-driven research and patent intelligence for your innovation.

Mounting structure and method of cylinder cover, cam shaft and cam shaft cover

A technology of camshaft cover and installation structure, which is applied in the direction of valve device, engine components, machine/engine, etc. It can solve the problems of difficult assembly of connecting bolts of cylinder block and cylinder head, and achieve the effect of improving casting

Inactive Publication Date: 2015-07-08
CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a cylinder head, camshaft and camshaft cover installation structure and installation method, aiming to effectively solve the problem of difficult assembly of cylinder block and cylinder head connecting bolts in variable valve lift technology

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
  • Mounting structure and method of cylinder cover, cam shaft and cam shaft cover
  • Mounting structure and method of cylinder cover, cam shaft and cam shaft cover
  • Mounting structure and method of cylinder cover, cam shaft and cam shaft cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Further illustrate the present invention below in conjunction with accompanying drawing:

[0020] The design idea of ​​the present invention is under the premise of ensuring the application of the new engine cylinder head technology (VVL), to be able to normally assemble the connecting bolts 3 of the cylinder block and cylinder head. Such as Figure 5 As shown, the structure is designed with an upper camshaft cover 9 and two lower camshaft covers 12 and 13. The upper camshaft cover 9 has the same function as the traditional camshaft cover, and is used to press and fix the intake camshaft 10 and the exhaust camshaft. Camshaft 11 ensures the normal operation of the camshaft. Under the upper camshaft cover 9, there are intake lower camshaft cover 12 and exhaust camshaft cover 13, these two parts are "reversely installed" under the upper camshaft cover 9, the main function is to replace the original The camshaft bearing block C8 that does not meet the assembly requirement...

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 provides a mounting structure of a cylinder cover, a cam shaft and a cam shaft cover. The mounting structure comprises an air feeding cam shaft, an exhausting cam shaft, the cylinder cover, an upper cam shaft cover, an individual lower air feeding cam shaft cover and an individual lower exhausting cam shaft cover, wherein the lower air feeding cam shaft cover and the lower exhausting cam shaft cover are respectively connected with the upper cam shaft cover through bolts to form an air feeding cam shaft hole and an exhausting cam shaft hole; the air feeding cam shaft and the exhausting cam shaft are respectively mounted in the air feeding cam shaft hole and the exhausting cam shaft hole so as to form a subassembly part which is assembled on the cylinder cover; the upper cam shaft cover and the cylinder cover are connected through bolts. According to the mounting structure, a cam shaft bearing block and a cylinder cover body are individually and independently designed; two individual lower air feeding cam shaft cover and lower exhausting cam shaft cover are used for replacing the cam shaft bearing block; the reversed cam shaft cover is used for fixing the cam shafts, so that connecting bolt of the cylinder body and the cylinder cover and the assembling process of the cam shafts are free of mutual interference; meanwhile, the casting and machining processes of the cylinder cover can be effectively improved.

Description

technical field [0001] The invention belongs to the field of engines, and in particular relates to the assembly technology of a cylinder head, a camshaft and a camshaft cover of the engine. Background technique [0002] Usually the engine camshaft is installed in the camshaft bearing seat on the engine cylinder head, and then fixed with the camshaft cover. see Figure 1-Figure 4 , On the engine cylinder head 2, the camshaft bearing block A1 and the camshaft bearing block B4 are located at the center plane of the cylinder bore. When assembling the intake and exhaust camshafts 10 and 11, only the camshaft needs to be placed on the camshaft bearing block, and then the camshaft cover 9 is assembled together and the connecting bolts are tightened to complete the assembly. However, in order to meet stricter fuel consumption regulations, more and more new technologies are applied to engines, such as the application of variable valve lift technology. Due to the limitation of the s...

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): F02F7/00F01L1/047
CPCF02F7/0046F01L1/047
Inventor 程涛王红王岳宇苏学颖梁文峰
Owner CHONGQING CHANGAN AUTOMOBILE 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