Cylinder head with stable air intake

Abstract

The present invention discloses a cylinder head with stable air intake, comprising a cylinder head body, an air intake pipe, an air outlet pipe, an air regulating pipe, a gas flow detector, an air replenisher and a controller, wherein a plurality of air intake passages and air outlet passages are respectively arranged on the cylinder head body, a partition wall is arranged at the air outlet end of the air intake pipe and divides the main pipe into a plurality of branch pipes, outlets of the plurality of branch pipes are respectively connected with the inlet of the air intake passage through the air regulating pipe, and the inlet of the plurality of air outlet pipes are respectively connected with the outlet of the air outlet passage, the gas flow detector and the air replenisher are respectively fixed on the air regulating pipe, the gas flow detector detects the air pressure in the air regulating pipe, the air replenisher replenishes air or combustible gas into the air regulating pipe, and can replenish air or combustible gas in time when insufficient air supply is detected, so as to ensure sufficient combustion in the combustion chamber and further ensure the normal operation of the cylinder.

Description

[Technical field]

[0001] The invention relates to the technical field of cylinder heads, in particular to the technical field of a cylinder head with stable air intake. [Background technology]

[0002] The cylinder head is one of the main components of the engine. It is used to seal the cylinder and form the combustion chamber. It also serves as a support for the camshaft, rocker shaft and intake and exhaust pipes. During operation, air or combustible gas can be sucked into the cylinder through the intake pipe through the cylinder head, and then the combustible mixed gas is ignited by the spark plug to drive the piston to work. Finally, the exhaust gas is discharged through the cylinder head through the exhaust pipe.

[0003] The intake pipe of the existing cylinder head generally adopts a design form of first integration and then separation, that is, the air is first taken in by the same main pipe, and then before entering the combustion chamber, the partition wall is used to separate the outlet end of the main pipe to form several independent branch pipes and discharge the air. The setting of the partition wall will change the flow direction of the airflow, form flow resistance, and lead to reduced charging efficiency. In addition, the flow rate of the gas is related to the cross-sectional area of ​​the pipe. At the same flow rate, the smaller the cross-sectional area of ​​the pipe, the higher the flow rate of the gas. When the gas enters each branch pipe with a smaller cross-sectional area from the main pipe with a larger cross-sectional area, the flow rate of the gas will suddenly increase, causing energy loss, which further leads to energy loss. [Summary of the invention]

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a cylinder head with stable air intake, which can replenish air or combustible gas in time when insufficient air supply is detected to ensure sufficient combustion in the combustion chamber, thereby ensuring the normal operation of the cylinder.

[0005] To achieve the above-mentioned objectives, the present invention proposes a cylinder head with stable air intake, comprising a cylinder head body, an intake pipe, an outlet pipe, a regulating pipe, a gas flow detector, an air replenisher and a controller, wherein the cylinder head body is respectively provided with a plurality of intake air passages and outlet air passages, the outlet end of the intake pipe is provided with a partition wall and divides the main pipe into a plurality of branch pipes, the outlets of the plurality of branch pipes are respectively connected to the inlet of the intake air passage through the regulating pipe, the inlet of the plurality of outlet pipes are respectively connected to the outlet of the outlet air passage, the gas flow detector and the air replenisher are respectively fixed on the regulating pipe, the gas flow detector detects the air pressure in the regulating pipe, the air replenisher replenishes air or combustible gas into the regulating pipe, and the controller is respectively electrically connected to the gas flow detector and the air replenisher.

[0006] Preferably, at least two plug interfaces are provided on the pipe wall of the fixed gas pipe, the gas flow detector comprises a detector body, a detection head and an airflow meter, the detection head and the airflow meter are respectively installed on the detector body, the detection end of the detection head passes through the plug interface and extends into the pipeline of the fixed gas pipe, the air replenisher comprises a straight pipe, a ring pipe, a nozzle and an air valve, the ring pipe is concentrically fixed in the pipeline of the fixed gas pipe, one end of the straight pipe is equipped with an air valve, the other end of the straight pipe passes through the plug interface and extends into the pipeline of the fixed gas pipe and is connected with the ring pipe, several of the nozzles are respectively installed on the ring pipe and arranged towards the side close to the gas flow detector, and several circles of first sealing grooves are respectively provided on the plugging surfaces of each of the plug interfaces and the detection head and the straight pipe, and a first sealing ring is installed in the first sealing groove.

[0007] Preferably, it also includes an elastic tube, and two of the elastic tubes are respectively sleeved outside the detection head and the straight tube and inserted into the plug-in port.

[0008] Preferably, the mouth of the plug interface protrudes outward to form a flange, a second sealing groove is provided on the end face of the flange, a second sealing ring is installed in the second sealing groove, a ring plate is provided on the elastic tube installed outside the straight tube, and the detector body and the ring plate are respectively tightly against the second sealing ring.

[0009] Preferably, the outer wall of the annular tube is in close contact with the inner wall of the fixed air tube.

[0010] Preferably, an annular wall is provided on the inner wall of the fixed air pipe, and the annular pipe is supported by the annular wall.

[0011] Preferably, a rounded corner is provided at the connection between the annular wall and the inner wall of the fixed air pipe, and the rounded corner is located on a side of the annular wall away from the annular pipe.

[0012] Preferably, the two pipe openings of the fixed air pipe are respectively plugged or threadedly connected to the branch pipe and the air inlet duct.

[0013] The beneficial effects of the present invention are as follows: by arranging an air fixing pipe between the intake pipe and the intake air duct, and installing a gas flow detector and an air replenisher on the air fixing pipe respectively, the present invention can replenish air or combustible gas in time when insufficient air supply is detected, so as to ensure sufficient combustion in the combustion chamber and further ensure the normal operation of the cylinder; by adopting a straight pipe, an annular pipe, a nozzle and an air valve to form an air replenisher, the normal air supply of the intake pipe is not hindered, and the gas can be evenly replenished into the air fixing pipe and mixed with each other; by arranging an annular wall on the inner wall of the air fixing pipe, and by arranging a fillet at the connection between the annular wall and the inner wall of the air fixing pipe, and making the fillet located on the side of the annular wall away from the annular pipe, the installation stability of the air replenisher can be improved, and the airflow normally input into the air fixing pipe from the intake pipe can be guided to a certain extent, so as to reduce the energy loss caused by the airflow being blocked and disturbed; by arranging an elastic cylinder with an annular plate, it can cooperate with the first sealing ring and the second sealing ring, so as to greatly improve the sealing effect and prevent the occurrence of air leakage.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a cylinder head body of a cylinder head with stable air intake in one viewing angle according to the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of a cylinder head body of a cylinder head with stable air intake according to the present invention from another viewing angle;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of an intake pipe of a cylinder head with stable intake according to the present invention;

[0018] Figure 4 It is a schematic diagram of assembling an air-fixing pipe, a gas flow detector, an air replenisher and an elastic cylinder of a cylinder head with stable air intake according to the present invention;

[0019] Figure 5 It is a front cross-sectional view of a fixed air pipe of a cylinder head with stable air intake according to the present invention;

[0020] Figure 6 It is a front view of an air replenisher and an elastic cylinder of a cylinder head with stable air intake according to the present invention when they are assembled;

[0021] Figure 7 It is a top view of an air replenisher and an elastic cylinder of a cylinder head with stable air intake according to the present invention when they are assembled;

[0022] Figure 8 The present invention is a front view of a gas flow detector and an elastic tube of a cylinder head with stable air intake during assembly.

[0023] In the figure: 1-cylinder head body, 11-intake air duct, 12-exhaust air duct, 2-intake pipe, 21-branch pipe, 3-fixed air pipe, 31-plug interface, 32-first sealing ring, 33-second sealing ring, 34-ring wall, 341-rounded corner, 4-gas flow detector, 41-detector body, 42-detection head, 43-air flow meter, 5-air replenisher, 51-straight pipe, 52-ring pipe, 53-nozzle, 54-air valve, 6-elastic cylinder, 61-ring plate. [Specific implementation method]

[0024] See also Figures 1 to 8 The present invention provides a cylinder head with stable air intake, comprising a cylinder head body 1, an air intake pipe 2, an air outlet pipe, an air fixing pipe 3, a gas flow detector 4, an air replenisher 5 and a controller. The cylinder head body 1 is respectively provided with a plurality of air intake passages 11 and air outlet passages 12. A partition wall is provided at the air outlet end of the air intake pipe 2 to divide the main pipe into a plurality of branch pipes 21. The outlets of the plurality of branch pipes 21 are respectively connected to the inlet of the air intake passage 11 through the air fixing pipe 3, and the inlet of the plurality of air outlet pipes are respectively connected to the outlet of the air outlet passage 12. The gas flow detector 4 and the air replenisher 5 are respectively fixed on the air fixing pipe 3. The gas flow detector 4 detects the air pressure in the air fixing pipe 3. The air replenisher 5 replenishes air or combustible gas into the air fixing pipe 3. The controller is respectively electrically connected to the gas flow detector 4 and the air replenisher 5.

[0025] At least two plug-in ports 31 are provided on the pipe wall of the fixed gas pipe 3. The gas flow detector 4 includes a detector body 41, a detection head 42 and an airflow meter 43. The detection head 42 and the airflow meter 43 are respectively installed on the detector body 41. The detection end of the detection head 42 passes through the plug-in port 31 and extends into the pipeline of the fixed gas pipe 3. The gas replenisher 5 includes a straight pipe 51, an annular pipe 52, a nozzle 53 and an air valve 54. The annular pipe 52 is concentrically fixed in the pipeline of the fixed gas pipe 3. An air valve 54 is installed at one end of the straight pipe 51, and the other end of the straight pipe 51 passes through the plug-in port 31 and extends into the pipeline of the fixed gas pipe 3 and is connected to the annular pipe 52. Several of the nozzles 53 are respectively installed on the annular pipe 52 and are arranged on the side close to the gas flow detector 4. Several circles of first sealing grooves are respectively provided on the plug-in surfaces of each of the plug-in ports 31 and the detection head 42 and the straight pipe 51, and a first sealing ring 32 is installed in the first sealing groove.

[0026] It also includes an elastic tube 6 , and two elastic tubes 6 are respectively sleeved outside the detection head 42 and the straight tube 51 and inserted into the insertion port 31 .

[0027] The mouth of the plug port 31 protrudes outward to form a flange, and a second sealing groove is provided on the end face of the flange. A second sealing ring 33 is installed in the second sealing groove. A ring plate 61 is provided on the elastic tube 6 installed outside the straight tube 51, and the detector body 41 and the ring plate 61 are respectively tightly attached to the second sealing ring 33.

[0028] The outer wall of the annular tube 52 is in close contact with the inner wall of the fixed gas tube 3 .

[0029] An annular wall 34 is disposed on the inner wall of the fixed air pipe 3 , and the annular pipe 52 is supported by the annular wall 34 .

[0030] A rounded corner 341 is provided at the connection between the annular wall 34 and the inner wall of the gas fixing pipe 3 . The rounded corner 341 is located at a side of the annular wall 34 away from the annular pipe 52 .

[0031] The two pipe openings of the fixed air pipe 3 are respectively plugged or threadedly connected to the branch pipe 21 and the air intake passage 11 .

[0032] Working process of the present invention:

[0033] First, air and combustible gas enter the combustion chamber of the cylinder along the intake pipe 2, the fixed air pipe 3 and the intake air passage 11, mix and burn, and the exhaust gas generated by the combustion flows out along the exhaust air passages 12. During this period, the gas flow detector 4 monitors the gas flow through the fixed air pipe 3 in real time. If the gas flow is insufficient, the gas valve 54 is opened, and the supplementary gas passes through the straight pipe 51 and the annular pipe 52, and is sprayed out through the nozzle 53 and replenished into the fixed air pipe 3.

[0034] The present invention provides an air filler pipe between the intake pipe and the intake air duct, and respectively installs a gas flow detector and an air replenisher on the air filler pipe. When insufficient air supply is detected, air or combustible gas can be replenished in time to ensure sufficient combustion in the combustion chamber and further ensure the normal operation of the cylinder. The air replenisher is formed by adopting a straight pipe, an annular pipe, a nozzle and an air valve, which neither hinders the normal gas transmission of the intake pipe nor allows the gas to be evenly replenished into the air filler pipe and mixed with each other. An annular wall is provided on the inner wall of the air filler pipe, a rounded corner is provided at the connection between the annular wall and the inner wall of the air filler pipe, and the rounded corner is located on the side of the annular wall away from the annular pipe, so that the installation stability of the air replenisher can be improved, and the airflow normally input into the air filler pipe from the intake pipe can be guided to a certain extent, thereby reducing the energy loss caused by the airflow being blocked and disturbed. An elastic cylinder with an annular plate is provided, which can cooperate with the first sealing ring and the second sealing ring to greatly improve the sealing effect and prevent the occurrence of air leakage.

[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A cylinder head with stable air intake, characterized in that: The invention comprises a cylinder head body (1), an air intake pipe (2), an air outlet pipe, an air fixing pipe (3), a gas flow detector (4), an air replenisher (5) and a controller. The cylinder head body (1) is provided with a plurality of air intake passages (11) and air outlet passages (12). The air outlet end of the air intake pipe (2) is provided with a partition wall to divide the main pipe into a plurality of branch pipes (21). The outlets of the plurality of branch pipes (21) are connected to the inlet of the air intake passage (11) through the air fixing pipe (3). The inlet of the plurality of air outlet pipes is connected to the outlet of the air intake passage (11). The gas flow detector (4) and the gas replenisher (5) are respectively fixed on the fixed gas pipe (3); the gas flow detector (4) detects the gas pressure in the fixed gas pipe (3); the gas replenisher (5) replenishes air or combustible gas into the fixed gas pipe (3); the controller is respectively electrically connected to the gas flow detector (4) and the gas replenisher (5); at least two plug interfaces (31) are provided on the wall of the fixed gas pipe (3); the gas flow detector (4) comprises a detector body (41), a detection head (41), and a detection head (42). 2) and an air flow meter (43), the detection head (42) and the air flow meter (43) are respectively mounted on the detector body (41), the detection end of the detection head (42) passes through the plug interface (31) and extends into the pipeline of the fixed air pipe (3), the air replenisher (5) comprises a straight pipe (51), an annular pipe (52), a nozzle (53) and an air valve (54), the annular pipe (52) is concentrically fixed in the pipeline of the fixed air pipe (3), one end of the straight pipe (51) is equipped with an air valve (54), and the other end of the straight pipe (51) passes through the plug interface ( 31) extends into the pipeline of the fixed gas pipe (3) and is connected to the ring pipe (52), a plurality of the nozzles (53) are respectively installed on the ring pipe (52) and are arranged toward the side close to the gas flow detector (4), and a plurality of circles of first sealing grooves are respectively provided on the plugging surfaces of each of the plug ports (31) and the detection head (42) and the straight pipe (51), and a first sealing ring (32) is installed in the first sealing groove; the two pipe openings of the fixed gas pipe (3) are respectively plugged or threadedly connected to the branch pipe (21) and the air inlet duct (11).

2. A cylinder head with stable air intake as claimed in claim 1, characterized in that: It also includes an elastic tube (6), wherein two elastic tubes (6) are respectively sleeved outside the detection head (42) and the straight tube (51) and inserted into the insertion port (31).

3. The cylinder head with stable air intake as claimed in claim 1, characterized in that: The mouth of the plug interface (31) protrudes outward to form a flange, and a second sealing groove is provided on the end surface of the flange. A second sealing ring (33) is installed in the second sealing groove. A ring plate (61) is provided on the elastic tube (6) installed outside the straight tube (51), and the detector body (41) and the ring plate (61) are respectively tightly attached to the second sealing ring (33).

4. The cylinder head with stable air intake as claimed in claim 1, characterized in that: The outer wall of the annular tube (52) is in close contact with the inner wall of the fixed air tube (3).

5. The cylinder head with stable air intake as claimed in claim 1, characterized in that: An annular wall (34) is provided on the inner wall of the fixed air pipe (3), and the annular pipe (52) is supported by the annular wall (34).

6. A cylinder head with stable air intake as claimed in claim 5, characterized in that: A rounded corner (341) is provided at the connection between the annular wall (34) and the inner wall of the fixed air pipe (3), and the rounded corner (341) is located on a side of the annular wall (34) away from the annular pipe (52).

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