Engine air inlet flow and pressure stabilizing device

Abstract

An engine air inlet flow and pressure stabilizing device comprises a main box body, an air inlet pipe is arranged on one side of the main box body, and the two ends of the air inlet pipe communicate with the outside and the inside of the main box body correspondingly; the air inlet mechanism is arranged in the main box body and is communicated with the air inlet pipe; the flow and pressure stabilizing mechanism is arranged in the main box body and communicates with the air inlet mechanism; the flow stabilizing and pressure stabilizing mechanism comprises an auxiliary box body and a flow stabilizing and pressure stabilizing part arranged in the auxiliary box body, the auxiliary box body is installed in the main box body, and one side of the auxiliary box body is communicated with the air inlet mechanism through a main connecting piece; the air outlet mechanism is mounted on the main box body, one end of the air outlet mechanism is communicated with the other side of the auxiliary box body, and the other end of the air outlet mechanism is communicated with the outside of the main box body. Normal work of the engine can be guaranteed, and the requirements for high efficiency, low oil consumption, low emission and stable operation of the engine are met.

Description

Technical Field

[0001] The utility model relates to an engine, in particular to an engine intake flow and pressure stabilizing device. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. Internal combustion engines usually convert chemical energy into mechanical energy. The engine is applicable to both power generation devices and the entire machine including the power device (such as gasoline engines, aircraft engines). The existing engine intake systems are mainly natural intake and turbocharged intake, and the intake pressure fluctuates greatly with the change of engine intake flow. The disadvantages of the natural intake system are: insufficient intake, especially when the engine is running at high speed, the intake flow increases, and the filter resistance increases with the increase of air flow, resulting in insufficient air supply, thereby reducing engine efficiency and causing serious exhaust pollution; the disadvantages of exhaust-driven turbocharging are: high engine temperature, the risk of spontaneous combustion, the low-speed effect is not obvious, and the intake is unstable. Unstable engine air supply is likely to cause engine knock, causing engine damage or reduced life; and if the intake volume cannot be balanced, the pressure cannot be stabilized, and the requirements for normal operation of the engine and stable operation with high efficiency, low fuel consumption, and low emissions cannot be met. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an engine intake flow and pressure stabilizing device in view of the above-mentioned defects of the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an engine intake flow and pressure stabilizing device, which includes:

[0005] A main box body, one side of which is provided with an air intake pipe, and both ends of the air intake pipe are respectively connected with the outside and the inside of the main box body;

[0006] An air intake mechanism, disposed in the main housing and connected to the air intake pipe;

[0007] A flow and pressure stabilizing mechanism is disposed in the main housing and communicated with the air intake mechanism; the flow and pressure stabilizing mechanism comprises a sub-housing and a flow and pressure stabilizing component disposed in the sub-housing, the sub-housing is installed in the main housing, and one side of the sub-housing is communicated with the air intake mechanism through a main connecting member; and

[0008] An air outlet mechanism is installed on the main box body, one end of the air outlet mechanism is communicated with the other side of the auxiliary box body, and the other end of the air outlet mechanism is communicated with the outside of the main box body.

[0009] The above-mentioned engine intake flow and pressure stabilizing device, wherein the flow and pressure stabilizing component comprises:

[0010] A support plate is installed in the auxiliary box body and divides the auxiliary box body into two independent spaces, the main connecting member is arranged corresponding to the lower independent space;

[0011] A sleeve, mounted on the support plate and located in the upper independent space;

[0012] A fixed plate, disposed in the sleeve and slidably connected to the inner wall of the sleeve via a sealing ring;

[0013] An isolation plate is arranged in the lower independent space, and an air inlet hole is arranged on the isolation plate;

[0014] A connecting rod connected to the fixing plate; the lower end of the connecting rod passes through the supporting plate and extends to the bottom of the isolation plate, and

[0015] A limit block is installed at the lower end of the connecting rod and is adapted to the air inlet.

[0016] The above-mentioned engine intake flow and pressure stabilizing device, wherein the flow and pressure stabilizing component also includes a deflector, which is arranged in the auxiliary box body corresponding to the main connecting part and is located below the isolation plate.

[0017] The above-mentioned engine intake flow and pressure stabilizing device, wherein the upper end of the connecting rod extends to the outside of the auxiliary box body, and a scale is set on the upper rod body of the connecting rod.

[0018] The above-mentioned engine air intake flow and pressure stabilizing device, wherein an air intake groove is provided on the support plate, and the air intake groove connects the upper independent space and the lower independent space.

[0019] The above-mentioned engine intake flow and pressure stabilizing device, wherein the flow and pressure stabilizing component also includes a main spring and a secondary spring, the main spring is sleeved on the connecting rod and is located between the support plate and the limit block; the secondary spring is sleeved on the connecting rod and is located between the sleeve and the fixed plate.

[0020] The above-mentioned engine air intake flow and pressure stabilizing device, wherein a filter screen is installed at the outer end of the air intake pipe.

[0021] The above-mentioned engine intake flow and pressure stabilizing device, wherein the intake mechanism includes a left baffle, a middle baffle and a right baffle, which are arranged in sequence from the side close to the auxiliary box to the side close to the intake pipe, and the left baffle, the middle baffle and the right baffle are arranged alternately, and a gas flow channel is formed between the left baffle, the middle baffle, the right baffle and the inner wall of the main box.

[0022] The above-mentioned engine air intake flow and pressure stabilizing device, wherein the air outlet mechanism includes a sub-connecting part and an air outlet pipe, the sub-connecting part is installed on the sub-box body, the air outlet pipe is arranged in the sub-connecting part, and the front end of the air outlet pipe is connected to the sub-box body, and the end of the air outlet pipe extends to the outside of the main box body.

[0023] The above-mentioned engine air intake flow and pressure stabilizing device, wherein the front end of the air outlet pipe is located between the isolation plate and the support plate.

[0024] The beneficial effects of the utility model are:

[0025] When the pressure of the utility model is relatively low, the main spring pushes the limit block downward, and the limit block pushes the connecting rod to drive the fixed plate to slide in the sleeve, so that the limit block is far away from the air inlet; when the pressure is relatively high, a large amount of gas enters the sleeve through the air inlet groove, and the gas pushes the fixed plate upward, and the fixed plate drives the connecting rod to move the limit block upward, thereby reducing the amount of gas entering from the air inlet, and the gas is discharged through the air outlet pipe, so that the intake volume tends to be balanced, the pressure is stable, and the normal operation of the engine can be ensured, meeting the requirements of high efficiency, low fuel consumption, and low emission stable operation of the engine. At the same time, when starting the engine, the gas enters the flow and pressure stabilizing mechanism through the filter screen, the air inlet pipe and the partition in turn, and the air is filtered first, so that the engine can obtain clean and effective air.

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the utility model;

[0029] Figure 3 The figure is a schematic diagram of the internal structure of a current and voltage stabilizing mechanism according to an embodiment of the present utility model.

[0030] Among them, the reference numerals

[0031] 1 main box

[0032] 2Intake mechanism

[0033] 21 Intake pipe

[0034] 22 filter screen

[0035] 23 Left partition

[0036] 24 Middle partition

[0037] 25Right bulkhead

[0038] 3. Current and voltage stabilization mechanism

[0039] 31 pairs of cabinets

[0040] 311 main connector

[0041] 32 baffles

[0042] 33 Isolation board

[0043] 331 air intake

[0044] 34 Support plate

[0045] 341 air intake slot

[0046] 35 sleeve

[0047] 36 fixed plate

[0048] 361 sealing ring

[0049] 37 Connecting rod

[0050] 371 Main Spring

[0051] 372 spring

[0052] 373 scale

[0053] 38 limit block

[0054] 4 Exhaust mechanism

[0055] 41 pairs of connectors

[0056] 42 Exhaust pipe DETAILED DESCRIPTION

[0057] The structural principle and working principle of the present invention are described in detail below in conjunction with the accompanying drawings:

[0058] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model. Figure 2It is a schematic diagram of the internal structure of an embodiment of the utility model. The engine air intake flow and pressure stabilizing device of the utility model comprises: a main case 1, one side of the main case 1 is provided with an intake pipe 21, two ends of the intake pipe 21 are respectively communicated with the outside and the inside of the main case 1, the outer end of the intake pipe 21 is installed with a filter screen cover 22, and the filter screen cover 22 can be replaced and disassembled as needed; an intake mechanism 2, which is arranged in the main case 1 and communicated with the intake pipe 21; a flow and pressure stabilizing mechanism 3, which is arranged in the main case 1 and communicated with the intake mechanism 2; the flow and pressure stabilizing mechanism 3 comprises a sub-case 31 and a flow and pressure stabilizing component arranged in the sub-case 31, the sub-case 31 is installed in the main case 1, and one side of the sub-case 31 is communicated with the intake mechanism 2 through a main connecting member 311; and an air outlet mechanism 4, which is installed on the main case 1, one end of the air outlet mechanism 4 is communicated with the other side of the sub-case 31, and the other end of the air outlet mechanism 4 is communicated with the outside of the main case 1.

[0059] In this embodiment, the air intake mechanism 2 includes a left partition 23, a middle partition 24 and a right partition 25, which are arranged in sequence from the side close to the auxiliary box body 31 to the side close to the intake pipe 21, and the left partition 23, the middle partition 24 and the right partition 25 are staggered, and can be staggered up and down and / or left and right, so that a circuitous gas flow channel is formed between the left partition 23, the middle partition 24, the right partition 25 and the inner wall of the main box body 1, and the incoming air is first stabilized to a certain extent. The air outlet mechanism 4 includes a sub-connecting part 41 and an air outlet pipe 42, the sub-connecting part 41 is installed on the sub-box body 31, the air outlet pipe 42 is arranged in the sub-connecting part 41, and the front end of the air outlet pipe 42 is connected to the sub-box body 31, and the end of the air outlet pipe 42 extends to the outside of the main box body 1. Preferably, the front end of the air outlet pipe 42 is located between the isolation plate 33 and the support plate 34, so that the gas after flow and pressure stabilization can smoothly enter the engine.

[0060] See also Figure 3 , Figure 3The figure is a schematic diagram of the internal structure of the flow and pressure stabilizing mechanism 3 of an embodiment of the utility model. The flow and pressure stabilizing component of this embodiment makes the intake volume tend to be balanced, the pressure is stable, and the normal operation of the engine is ensured, including: a support plate 34, which is fixedly installed in the sub-box 31 and divides the sub-box 31 into two independent spaces, the main connecting member 311 is arranged corresponding to the lower independent space; a sleeve 35, which is fixedly installed on the support plate 34 and located in the upper independent space; a fixing plate 36, which is arranged in the sleeve 35 and is slidably connected to the inner wall of the sleeve 35 through a sealing ring 361, and the sealing ring 361 can be fixedly connected Connected to the outer edge of the fixed plate 36; the isolation plate 33 is arranged in the independent space at the bottom, and the isolation plate 33 is provided with an air inlet 331; a connecting rod 37 is connected to the fixed plate 36; the lower end of the connecting rod 37 passes through the support plate 34 and extends to the bottom of the isolation plate 33, and a limit block 38 is installed at the lower end of the connecting rod 37, and the limit block 38 is adapted to the air inlet 331. The relative position of the limit block 38 and the air inlet 331 is adjusted by the connecting rod 37, and the opening size of the air inlet 331 can be adjusted to adjust the air intake amount.

[0061] The flow and pressure stabilizing component may further include a baffle 32, which is arranged and fixed in the auxiliary box 31 corresponding to the main connecting member 311, and is located below the isolation plate 33. The upper end of the connecting rod 37 extends outside the auxiliary box 31, and a scale 373 is provided on the upper rod body of the connecting rod 37, which is convenient for observing the pressure inside the flow and pressure stabilizing mechanism 3. An air inlet groove 341 is provided on the support plate 34, and the air inlet groove 341 connects the upper independent space and the lower independent space. When the pressure is high, the flow and pressure stabilizing mechanism 3 can work normally. The flow and pressure stabilizing component also includes a main spring 371 and a secondary spring 372. The main spring 371 is sleeved on the connecting rod 37 and is located between the support plate 34 and the limit block 38; the secondary spring 372 is sleeved on the connecting rod 37 and is located between the sleeve 35 and the fixed plate 36, so that the flow and pressure stabilizing mechanism 3 can work normally.

[0062] When the engine is started, the gas enters the flow and pressure stabilizing mechanism 3 through the filter cover 22, the intake pipe 21 and the right partition 25, the middle partition 24 and the left partition 23 in sequence. The space in the auxiliary box 31 becomes larger when the gas enters, and the pressure is reduced to a certain extent under the action of the baffle plate 32. When the pressure is relatively low, the main spring 371 pushes the limit block 38 to move downward, and the limit block 38 pushes the connecting rod 37 to drive the fixed plate 36 to slide in the sleeve 35, so that the limit block 38 is far away from the air inlet 331; when the pressure is relatively high, a large amount of gas enters the sleeve 35 through the intake groove 341, and the gas pushes the fixed plate 36 to move upward, and the fixed plate 36 drives the limit block 38 to move upward through the connecting rod 37, thereby reducing the amount of gas entering from the air inlet 331, and the gas is discharged through the outlet pipe 42, so that the intake volume tends to be balanced, the pressure is stable, the normal operation of the engine is ensured, and the requirements of high efficiency, low fuel consumption and low emission stable operation of the engine are met.

[0063] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An engine intake flow and pressure stabilizing device, characterized in that: include: A main box body, one side of which is provided with an air intake pipe, and both ends of the air intake pipe are respectively connected with the outside and the inside of the main box body; An air intake mechanism, disposed in the main housing and connected to the air intake pipe; A flow and pressure stabilizing mechanism is disposed in the main housing and communicated with the air intake mechanism; the flow and pressure stabilizing mechanism comprises a sub-housing and a flow and pressure stabilizing component disposed in the sub-housing, the sub-housing is installed in the main housing, and one side of the sub-housing is communicated with the air intake mechanism through a main connecting member; and An air outlet mechanism is installed on the main box body, one end of the air outlet mechanism is communicated with the other side of the auxiliary box body, and the other end of the air outlet mechanism is communicated with the outside of the main box body.

2. The engine intake flow and pressure stabilizing device according to claim 1, characterized in that: The current and voltage stabilizing components include: A support plate is installed in the auxiliary box body and divides the auxiliary box body into two independent spaces, the main connecting member is arranged corresponding to the lower independent space; A sleeve, mounted on the support plate and located in the upper independent space; A fixed plate, disposed in the sleeve and slidably connected to the inner wall of the sleeve via a sealing ring; An isolation plate is arranged in the lower independent space, and an air inlet hole is arranged on the isolation plate; A connecting rod connected to the fixing plate; the lower end of the connecting rod passes through the supporting plate and extends to the bottom of the isolation plate, and A limit block is installed at the lower end of the connecting rod and is adapted to the air inlet.

3. The engine intake flow and pressure stabilizing device according to claim 2, characterized in that: The current and pressure stabilizing component further includes a baffle, which is arranged in the auxiliary box corresponding to the main connecting member and is located below the isolation plate.

4. The engine intake flow and pressure stabilizing device according to claim 2, characterized in that: The upper end of the connecting rod extends outside the auxiliary box body, and a scale is arranged on the upper rod body of the connecting rod.

5. The engine intake flow and pressure stabilizing device according to claim 2, characterized in that: The support plate is provided with an air inlet groove, and the air inlet groove communicates with the upper independent space and the lower independent space.

6. The engine intake flow and pressure stabilizing device according to claim 2, characterized in that: The current and voltage stabilizing component also includes a main spring and a secondary spring. The main spring is sleeved on the connecting rod and located between the support plate and the limit block; the secondary spring is sleeved on the connecting rod and located between the sleeve and the fixing plate.

7. The engine intake flow and pressure stabilizing device according to claim 1, characterized in that: A filter screen cover is installed at the outer end of the air inlet pipe.

8. The engine intake flow and pressure stabilizing device according to claim 1, characterized in that: The air intake mechanism includes a left partition, a middle partition and a right partition, which are arranged in sequence from the side close to the auxiliary box to the side close to the intake pipe, and the left partition, the middle partition and the right partition are arranged alternately, and a gas flow channel is formed between the left partition, the middle partition, the right partition and the inner wall of the main box.

9. The engine intake flow and pressure stabilizing device according to claim 2, characterized in that: The air outlet mechanism includes a sub-connecting member and an air outlet pipe, wherein the sub-connecting member is mounted on the sub-box body, the air outlet pipe is arranged in the sub-connecting member, and the front end of the air outlet pipe is connected to the sub-box body, and the end of the air outlet pipe extends to the outside of the main box body.

10. The engine intake flow and pressure stabilizing device according to claim 9, characterized in that: The front end of the air outlet pipe is located between the isolation plate and the support plate.

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