Wear-resistant piston head
A technology of piston head and piston skirt, applied in the field of internal combustion engine, can solve the problems of piston head contacting the cylinder wall, cylinder eccentric wear, etc.
Inactive Publication Date: 2010-06-30
JIANGSU YANGGONG POWER MACHINERY
View PDF0 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In the prior art, the piston of an internal combustion engine mainly includes a piston head, the piston head is provided with a pin hole that runs through the piston head transversely, a plurality of piston ring grooves are arranged above the pin hole, and the piston skirt is below the pin hole. , when working, a piston ring is installed in the piston ring groove, and the piston ring is in contact with the cylinder wall. The piston rin
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0008] Such as figure 1 , in order to avoid wear and tear of the piston head, the piston head 1 is provided with a pin shaft hole 2 that runs through the piston head transversely, above the pin shaft hole 2 there are multiple piston ring grooves 3, and below the pin shaft hole 2 is the piston skirt 102 A radially protruding step 101 is provided above the pin shaft hole 2 and between the bottommost piston ring groove, and the diameter of the step 101 is equal to the diameter of the piston skirt 102 .
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
Login to view more
Abstract
The invention discloses a wear-resistant piston head used in the technical field of internal combustion engines. A pin shaft hole transversely penetrating the piston head is formed on the piston head, a plurality of piston ring grooves are formed above the pin shaft hole, a piston skirt part is arranged below the pin shaft hole, a radially raised step is arranged between the upper part of the pin shaft hole and the piston ring groove at the bottom, and the diameter at the step is equal to that of the piston skirt part. When the piston head is used, the inner diameter of the corresponding air cylinder is fitted with the diameter at the step, therefore, the diameter at the upper part of the piston is far smaller than the inner diameter of the air cylinder, the purposes of balancing the piston and adjusting the gap are achieved through a piston ring, simultaneously, the upper part of the piston is not in contact with the inner wall of the air cylinder during the working process, even if the operating conditions are bad and the piston is worn, the upper part of the piston can still keep a certain distance with the inner wall of the air cylinder to avoid the phenomenon of scuffing of cylinder bore and eccentric wear, and simultaneously, the piston head is not easily worn.
Description
technical field [0001] The invention relates to an internal combustion engine, in particular to a piston of the internal combustion engine. Background technique [0002] In the prior art, the piston of an internal combustion engine mainly includes a piston head, the piston head is provided with a pin hole that runs through the piston head transversely, a plurality of piston ring grooves are arranged above the pin hole, and the piston skirt is below the pin hole. , when working, a piston ring is installed in the piston ring groove, and the piston ring is in contact with the cylinder wall. The piston ring has an air ring and an oil ring, which play the role of bearing, guiding and scraping oil. In other words, there is no contact between the upper part of the piston head and the cylinder wall; however, with the change of the working conditions of the internal combustion engine and the wear of the piston ring itself, the piston head will directly contact the cylinder wall, caus...
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
Login to view more
IPC IPC(8): F02F3/00F16J1/00
Inventor 王加兵
Owner JIANGSU YANGGONG POWER MACHINERY
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
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