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

Engine intake port and engine cylinder head and engine

An engine cylinder and engine technology, which is applied in the field of vehicle parts, can solve the problems of affecting the air charge of the engine, the bolts are not conducive to the sealing of the combustion chamber, and the diameter of the intake branch pipe is reduced, so as to achieve reasonable ignition timing, increase turbulent kinetic energy, and improve combustion speed effect

Active Publication Date: 2021-09-07
GREAT WALL MOTOR CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the tendency of knocking, the current way for various manufacturers to improve the end tumble flow is to arrange the branch pipe from the intake port into the combustion chamber of the cylinder head into a straight cylinder perpendicular to the wall of the combustion chamber of the cylinder head, so that the intake air can be introduced to the edge of the cylinder, Increase the tumble flow strength at the edge of the cylinder, that is, at the end of the combustion chamber. In this way, the cylinder head bolts need to be moved to the outside, or the diameter of the intake branch pipe will be reduced. Moving the bolts to the outside is not conducive to the sealing of the combustion chamber, and The reduction in the diameter of the intake branch will affect the air charge of the engine and reduce the performance of the engine

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
  • Engine intake port and engine cylinder head and engine
  • Engine intake port and engine cylinder head and engine
  • Engine intake port and engine cylinder head and engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment relates to an engine intake port 1, which is constructed on the engine cylinder head 21 to transport gas into the combustion chamber 201 of the engine, such as figure 1 with figure 2 As shown, the engine intake passage 1 includes an intake main pipe positioned at the intake front end, two intake branch pipes 12 positioned at the intake end, and between the intake main pipe and the intake branch pipe 12, so that the intake main pipe transitions to The transition section 11 of the two intake branch pipes 12 .

[0030] The schematic diagram of the engine structure is as follows figure 1 with image 3 As shown, the combustion chamber 201 of the engine is formed by the wall surface of the engine cylinder head 21, the inner wall of the cylinder block 22 and the piston 23, and the top of the combustion chamber 201 is provided with an air inlet 3 communicated with the engine intake passage 1. The opening and closing of the air port 3 can be controlled by the...

Embodiment 2

[0040] This embodiment relates to an engine cylinder head 21 on which the engine intake passage 1 as described in Embodiment 1 is applied.

[0041] The engine cylinder head 21 of this embodiment, by applying the engine intake port 1 as described in the first embodiment, can make the gas included in the engine combustion chamber 201 more uniform, and effectively improve the thermal efficiency of the engine. Because the above-mentioned structure is relatively simple, The engine cylinder head 21 can also be conveniently molded by casting.

Embodiment 3

[0043] This embodiment relates to an engine on which the engine cylinder head 21 as described in the second embodiment is installed.

[0044] The engine of this embodiment is installed with the engine cylinder head 21 as described in the second embodiment, because the air intake is more uniform, it can have better thermal efficiency, which is beneficial to the energy saving and emission reduction of the vehicle carrying the engine.

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 an engine intake port, an engine cylinder head and an engine. The engine intake port of the present invention includes an intake main pipe at the front end of the intake air, two air intake branch pipes at the end of the intake air, and In the transition section between the intake main pipe and the two intake branch pipes, a first groove extending along the length direction of the transition section is formed in the middle of the upper side of the transition section, and in the middle of the first groove A first guide plane and a second guide plane extending toward the two intake branch pipes are respectively arranged on the two opposite sides. The engine intake port of the present invention can make the gas entering the combustion chamber of the engine relatively uniform, increase the tumble flow intensity at the edge of the combustion chamber, and then increase the turbulent kinetic energy in the edge area of ​​the combustion chamber at the moment of ignition, and increase the combustion speed at the end of the combustion chamber , to reduce the tendency of the engine to knock.

Description

technical field [0001] The invention relates to the technical field of vehicle parts, in particular to an engine intake duct. The invention also relates to an engine cylinder head using the engine intake duct and an engine equipped with the engine cylinder head. Background technique [0002] At present, the main factor that plagues the further improvement of the thermal efficiency of gasoline engines is the knocking problem. At present, the main reason for the knocking problem is that the combustion speed is too slow. When the flame front does not reach the end of the combustion chamber, the end gas spontaneously ignites, and increasing the combustion speed of the end mixture can reduce the tendency of knocking and improve the combustion of the end mixture. The method of speed is to increase the turbulent kinetic energy at the end of the combustion chamber at the ignition moment. The turbulent kinetic energy is mainly converted from the tumble flow in the cylinder when it is...

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 Patents(China)
IPC IPC(8): F02B31/00
CPCF02B31/00Y02T10/12
Inventor 沈小栋李兰芬贾合正马京卫孟祥程张德胜纪雷杨海龙韩二龙杨伟肖姗姗赵国东林文
Owner GREAT WALL MOTOR CO LTD