High-pressure pump roller tappet
A high-pressure pump and roller technology, which is applied in the field of engine equipment, can solve problems such as inability to optimize material use efficiency, affect user experience, and complex process flow, and achieve the effect of improving material utilization, improving engine efficiency, and reducing overall weight
Pending Publication Date: 2019-02-22
HANGZHOU XZB TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The guide sleeve of the integral structure is integrally formed with the load-bearing plate as the support. The shape of the load-bearing plate is flat and made by complex machining. The process is complicated, the cost is high, and the use efficiency of materials cannot be optimized, and the weight is heavy. , large inertial force; the split type is that the guide sleeve and the bracket are formed separately, the rigidity is insufficient, and the noise is relatively large during the working process, which affects the user experience
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
[0031] The present invention will be further described below through specific embodiments and accompanying drawings.
[0032] The implementation is as follows: Figure 1-4 and Figure 9 As shown, the high-pressure pump roller tappet, used in the engine fuel injection system, is installed between the drive cam 5 and the oil pump plunger 6 in the engine cylinder head, including the guide sleeve 1, the pin 2, the roller set 3 and the positioning Block 4, the roller set 3 includes rollers 3.1 and needle rollers 3.2, the lower part of the guide sleeve 1 has a cylindrical structure, the front and rear sides of the upper part have arc-shaped side walls 1.1 with the same outer contour as the lower part, and the left and right sides have flat sides Wall 1.2, a positioning block hole 1.4 is opened on the side wall of the guide sleeve 1, and a shaft hole 1.3 is opened at a symmetrical position on the plane side wall 1.2 on both sides. The contours of the arcuate sidewall 1.1 and the pl...
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 relates to a high-pressure pump roller tappet. The high-pressure pump roller tappet is used for an engine fuel injection system, is installed between an oil pump plunger and a drive camin an engine cylinder head, and comprises a guide sleeve, a pin shaft, a roller set and a positioning block, the roller set comprises a roller and a roller pin, the front and rear sides of the upper portion of the guide sleeve are provided with arc-shaped side walls, the left and right sides are provided with plane side walls, the plane side walls are symmetrically provided with shaft holes, the guide sleeve is provided with a positioning block hole, an arc-shaped plate integrally formed together with the guide sleeve is arranged between the inner walls of the left and right sides below the plane side walls, and structural holes are formed between the front and rear sides of the arc-shaped plate and the inner wall of the guide sleeve. The high-pressure pump roller tappet adopts the integral structure, the guide sleeve is integrally formed, the processing steps are few, materials of whole parts are rationally distributed, the aims of high rigidity and low weight are achieved, the requirements of different types of engines for the rigidity can be met, and the material using rate is improved.
Description
technical field [0001] The invention relates to the technical field of engine equipment, in particular to a roller tappet of a high-pressure pump. Background technique [0002] Roller tappet is an important part of an automobile engine using a high-pressure oil pump system. It is installed between the drive cam and the tappet. It converts the rotary motion of the drive cam into linear reciprocating motion and pushes the tappet motion. The main structure includes a guide sleeve. , brackets, rollers and pins. [0003] The existing high-pressure oil pump roller tappet has two structures according to the relationship between the guide sleeve and the bracket: integral type and split type. The guide sleeve of the integral structure is integrally formed with the bearing plate as the bracket. The shape of the bearing plate is flat and made of complex machining. The process is complicated and the cost is high. It cannot optimize the use efficiency of materials, and the weight is hea...
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 Patent Type & Authority Applications(China)
IPC IPC(8): F02M59/10F02M39/02
CPCF02M39/02F02M59/102
Inventor 徐纳任海军
Owner HANGZHOU XZB TECH