Front air inlet connecting pipe of turbocharger, turbocharger, engine and vehicle
By designing an antifreeze device for the turbocharger's intake manifold, the waste heat from the engine cooling system is used to heat the inner wall of the manifold, solving the problem of turbocharger damage caused by ice falling off and achieving an antifreeze effect in cold environments.
Patent Information
- Application Number
- CN202520254249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-18
AI Technical Summary
In cold environments, the inner wall of the turbocharger's intake manifold is prone to icing. When the ice breaks off due to vibration, it impacts the high-speed rotating turbocharger impeller, causing damage to the turbocharger.
The design incorporates an antifreeze system, including a water jacket, inlet, outlet, inlet pipe, and outlet pipe. This system utilizes the waste heat from the engine cooling system to heat the inner wall of the intake manifold, preventing ice from condensing.
This effectively prevents ice from falling off and impacting the turbocharger impeller in cold environments, thus avoiding damage to the turbocharger.
Smart Images
Figure CN223661981U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of diesel engine, more particularly, relate to the front air intake pipe for turbocharger, adopt the turbocharger of front air intake pipe and the turbocharged engine and vehicle of adopting the turbocharger of front air intake pipe. BACKGROUND
[0002] For the small high-speed diesel engine for vehicle, generally adopt turbocharger and crankcase ventilation technology, at present, for the vast majority of small high-speed diesel engine for vehicle, one end of the crankcase ventilation pipe is connected with the oil-gas separator of the upper part of the engine cylinder cover, the other end is connected with the front air intake pipe of the turbocharger, the crankcase gas of the front air intake pipe of the turbocharger contains more water vapor, in the winter cold environment, due to the low wall temperature of the front air intake pipe of the turbocharger and the low intake temperature, the ice is easy to form on the inner wall of the front air intake pipe of the turbocharger, the ice block is impacted by the high-speed rotating supercharger impeller after the vibration falls off, and the supercharger is damaged. SUMMARY
[0003] The utility model discloses a kind of front air intake pipes for turbocharger, front air intake pipe has anti-freezing device, for heating the inner wall of front air intake pipe, so that, avoid in cold environment use condition, because the ice block that the ice block that the inner wall of front air intake pipe condenses is impacted by the high-speed rotating supercharger impeller after the vibration falls off, leading to supercharger damage.
[0004] Another object of the utility model is to provide a kind of turbocharger, adopt above-mentioned front air intake pipe, so that, avoid in cold environment use condition, because the ice block that the ice block that the inner wall of front air intake pipe of turbocharger condenses is impacted by the high-speed rotating supercharger impeller after the vibration falls off, leading to supercharger damage.
[0005] Still another object of the utility model is to provide a kind of turbocharged engine, adopt above-mentioned turbocharger, avoid in cold environment use condition, because the ice block that the ice block that the inner wall of front air intake pipe of turbocharger condenses is impacted by the high-speed rotating supercharger impeller after the vibration falls off, leading to supercharger damage.
[0006] Still another object of the utility model is to provide a kind of vehicle, adopt above-mentioned turbocharged engine, avoid in cold environment use condition, because the ice block that the ice block that the inner wall of front air intake pipe of turbocharger condenses is impacted by the high-speed rotating supercharger impeller after the vibration falls off, leading to supercharger damage.
[0007] The utility model provides a kind of front air intake pipe for turbocharger, and turbocharger connects the engine of vehicle.The front air intake pipe has anti-freezing device, for heating the inner wall of front air intake pipe.Anti-freezing device includes a water jacket, a water inlet, a backwater port, a water inlet line and a backwater line.The water jacket is arranged in the inside of front air intake pipe, and the outer wall of water jacket and the inner wall of front air intake pipe form a chamber.The water inlet and backwater port are both opened in the shell of front air intake pipe and communicate with the chamber.The opening position of water inlet is higher than the opening position of backwater port.The one end of water inlet line can be connected to the cylinder cooling line of engine, and the other end is connected to water inlet.The one end of backwater line can be connected to the cylinder cooling line of engine, and the other end is connected to backwater port.
[0008] By designing anti-freezing device for the front air intake pipe of turbocharger, anti-freezing device connects engine cylinder waterway, and the inner wall of front air intake pipe of turbocharger is heated by using the waste heat of fluid of engine cooling system, so that the ice block condensed in the inner wall of front air intake pipe is prevented from impacting high-speed rotating supercharger impeller after falling off due to vibration under cold environment working condition, to cause damage to supercharger.
[0009] In one illustrative embodiment of the front air intake pipe for turbocharger, the anti-freezing device further includes a water inlet valve and a backwater valve.The water inlet valve is arranged in the water inlet line.The backwater valve is arranged in the backwater line.By this means, the flow of fluid into the water jacket is controlled.
[0010] In another illustrative embodiment of the front air intake pipe for turbocharger, the water inlet line and the water inlet, and the backwater line and the backwater port are sealed by one of steel band-shaped elastic hoop, flange and thread.By this means, fluid leakage at the connection is avoided.
[0011] In still another illustrative embodiment of the front air intake pipe for turbocharger, the water inlet line and the backwater line are both rubber pipes, which are convenient to install and provide good corrosion resistance and sealing property, and maintain good stability under the condition of change of ambient temperature.
[0012] In still another illustrative embodiment of the front air intake pipe for turbocharger, the water inlet valve and the backwater valve are both ball valves, which are convenient to operate and provide good sealing property.
[0013] The utility model also provides a kind of turbocharger, and turbocharger uses the above-mentioned front air intake pipe for turbocharger.By this means, the ice block condensed in the inner wall of front air intake pipe of turbocharger is prevented from impacting high-speed rotating supercharger impeller after falling off due to vibration under cold environment working condition, to cause damage to supercharger.
[0014] The utility model further provides a kind of turbocharged engine.The turbocharged engine includes an engine and an aforementioned turbocharger.The engine has a first opening and a second opening.Both the first opening and the second opening are provided in the cylinder cooling pipeline of the engine and communicate with the internal cooling channel of the cylinder of the engine.The water inlet pipeline of the anti-freezing device of the turbocharger is connected to the first opening.The water return pipeline of the anti-freezing device is connected to the second opening.In this way, the water jacket is connected to the cylinder water pipeline of the engine, and the inner wall of the front air inlet pipe of the turbocharger is heated using the waste heat of the internal coolant of the engine, so as to avoid the ice block condensed on the inner wall of the front air inlet pipe of the turbocharger from impacting the high-speed rotating turbocharger impeller after falling off due to vibration under the working condition in cold environment, which causes damage to the turbocharger.
[0015] In one illustrative embodiment of the turbocharged engine, the first opening is provided in the water outlet pipeline on the exhaust side of the engine; and the second opening is provided in the water return pipeline on the exhaust side of the engine, so as to facilitate installation and shorten the length of the water inlet pipeline and the water return pipeline.
[0016] In another illustrative embodiment of the turbocharged engine, one of a steel band-shaped elastic hoop, a flange and a thread is used to seal between the water inlet pipeline and the first opening and between the water return pipeline and the second opening.In this way, fluid leakage at the connection is avoided.
[0017] The utility model further provides a vehicle, which uses the above turbocharged engine.In this way, the ice block condensed on the inner wall of the front air inlet pipe of the turbocharger is avoided from impacting the high-speed rotating turbocharger impeller after falling off due to vibration under the working condition in cold environment, which causes damage to the turbocharger.
[0018] The utility model discloses an anti-freezing device for the front air inlet pipe of a turbocharger, and connects the anti-freezing device to the cylinder water pipeline of the engine, and heats the inner wall of the front air inlet pipe of the turbocharger using the waste heat of the fluid of the cooling system of the engine, so as to avoid ice from being formed on the inner wall of the front air inlet pipe of the turbocharger due to low wall temperature and low air inlet temperature of the turbocharger during vehicle use in cold environment, and the ice block is avoided from impacting the high-speed rotating turbocharger impeller after falling off due to vibration, which causes damage to the turbocharger. BRIEF DESCRIPTION OF DRAWINGS
[0019] The following drawings are only illustrative and explanatory of the utility model, and do not limit the scope of the utility model.
[0020] Figure 1 is a schematic diagram of the use state of the front air inlet pipe of a turbocharger according to one illustrative embodiment of the utility model.
[0021] Figure 2is a schematic view of a prior art intake pipe in use for a turbocharger.
[0022] REFERENCE NUMERALS
[0023] 10 freeze protection device
[0024] 11 water jacket
[0025] 111 chamber
[0026] 13 water inlet line
[0027] 131 water inlet valve
[0028] 15 water return line
[0029] 151 water return valve
[0030] 20 turbocharger
[0031] 21 intake pipe
[0032] 211 water inlet port
[0033] 213 water return port
[0034] 23 intake duct
[0035] 25 exhaust duct
[0036] 30 crankcase ventilation duct
[0037] 50 engine
[0038] 51 intake manifold
[0039] 53 exhaust manifold
[0040] 55 first opening
[0041] 57 second opening
[0042] 60 intercooler
[0043] 61 intercooler inlet duct
[0044] 63 intercooler outlet duct
[0045] 70 wall icing
[0046] 80 cold air
[0047] L1 exhaust direction DETAILED DESCRIPTION
[0048] In order to have a clearer understanding of the technical features, objectives and effects of the application, the specific implementation manners of the present application will be described with reference to the drawings, and the same reference numbers in the drawings represent the same or similar components having the same function.
[0049] In the present document, "schematic" means "serving as an example, instance or illustration", and any illustration, implementation described as "schematic" in the present document should not be interpreted as a more preferred or more advantageous technical solution.
[0050] In the present document, "first", "second", etc. do not represent the importance or order, etc., but are only used to represent the difference from each other for the description of the document.
[0051] In order to make the drawing simple, only the parts related to the present application are schematically shown in the drawings, which do not represent the actual structure of the product.
[0052] Figure 2 is a structural schematic view of a front air intake pipe for a turbocharger according to the prior art. As shown in Figure 2 , the air intake pipe 23 of the turbocharger 20 is connected with the exhaust manifold 23 of the engine 50, the exhaust pipe 25 of the turbocharger 20 is connected with the exhaust aftertreatment device and the exhaust tail pipe, and the treated exhaust gas is discharged out of the vehicle. The turbocharger 20 is connected with the intercooler 60 via the intercooling air intake pipe 61, and the intercooling outlet pipe 63 of the intercooler 60 is connected with the air intake manifold 51 of the engine 50. The front air intake pipe 21 of the turbocharger 20 is connected with one end of the crankcase ventilation pipe (the crankcase is not shown in the drawing) 30, and the other end of the crankcase ventilation pipe 30 is connected with the oil-gas separator (not shown in the drawing) on the upper part of the cylinder head of the engine 50. The exhaust gas in the crankcase enters the front air intake pipe 21 of the turbocharger 20 in the exhaust direction L1 via the crankcase ventilation pipe 30, and the exhaust gas discharged from the crankcase contains a large amount of water vapor. In the winter cold environment, due to the invasion of the low-temperature cold air 80 in the environment, the wall surface temperature of the front air intake pipe 21 of the turbocharger 20 is low, and the intake air temperature is also low, which causes ice to easily form inside the front air intake pipe 21. After the ice is shaken off and hits the high-speed rotating impeller of the turbocharger 20, the turbocharger 20 is damaged.
[0053] Figure 1 is a structural schematic view of a front air intake pipe for a turbocharger according to one of the schematic embodiments of the present application. As shown in Figure 1The utility model provides a kind of front air intake pipe 21 for turbocharger 20, turbocharger 20 connects the engine 50 of vehicle. Front air intake pipe 21 has anti-freezing device 10, for heating the inner wall of front air intake pipe 21. Anti-freezing device 10 includes a water jacket 11, a water inlet 211, a backwater port 213, a water inlet line 13 and a backwater line 15. Water jacket 11 is arranged in the inside of front air intake pipe 21, and the outer wall of water jacket 11 and the inner wall of front air intake pipe 21 form a chamber 111. For example, water jacket 11 can be integrally pressure die cast with front air intake pipe 21, but not limited to this. Water inlet 211 and backwater port 213 are both opened in the shell of front air intake pipe 21 and communicate with chamber 111. The opening position of water inlet 211 is higher than the opening position of backwater port 213, to ensure that the flow direction of fluid into water jacket 11 is from water inlet 211 to backwater port 213. One end of water inlet line 13 can be connected to the cylinder cooling line of engine 50, and the other end is connected to water inlet 211. One end of backwater line 15 can be connected to the cylinder cooling line of engine 50, and the other end is connected to backwater port 213. Water inlet line 13 and backwater line 15 are both rubber tubes, for example EPDM (Ethylene Propylene Diene Monomer) rubber tube, facilitate installation and provide good corrosion resistance and sealing, and maintain good stability in the case of ambient temperature change.
[0054] By designing anti-freezing device for the front air intake pipe of turbocharger, the anti-freezing device is connected to the engine cylinder water line, and the inner wall of the front air intake pipe of turbocharger is heated by the waste heat of the fluid of the cooling system of engine, so that in cold environment use condition, the inner wall surface temperature of front air intake pipe 21 is mostly higher than 0 degrees, to avoid ice block condensed on the inner wall of front air intake pipe from falling off due to vibration and impacting the high-speed rotating supercharger impeller, causing damage to the supercharger.
[0055] In one illustrative embodiment of the front air intake pipe 21 for turbocharger 20, anti-freezing device 10 further includes a water inlet valve 131 and a backwater valve 151. Water inlet valve 131 is arranged in water inlet line 13. Backwater valve 151 is arranged in backwater line 15. Water inlet valve 131 and backwater valve 151 can both be ball valves, to facilitate operation and provide good sealing, or other types of valves can also be used. In this way, the flow of fluid into the water jacket is controlled.
[0056] In another illustrative embodiment of the front air intake pipe 21 for turbocharger 20, steel band-shaped elastic hoop, flange and thread are used to seal between water inlet line 13 and water inlet 211, and between backwater line 15 and backwater port 213. Preferably, steel band-shaped elastic hoop is used for connection and sealing. In this way, fluid leakage at the connection is avoided.
[0057] The utility model further provides a kind of turbocharger 20, and the turbocharger 20 uses above-mentioned for the front air intake pipe 21 of turbocharger 20.It is thereby avoided in cold environment use condition, because the ice block of the inner wall of the front air intake pipe of turbocharger condenses and is impacted by high-speed rotating supercharger impeller after vibration drop, leading to supercharger damage.
[0058] The utility model further provides a kind of turbocharged engine.The turbocharged engine includes an engine 50 and an aforementioned turbocharger 20.The engine 50 has a first opening 55 and a second opening 57.Both the first opening 55 and the second opening 57 are arranged in the cylinder cooling pipeline of the engine and communicate with the cylinder interior cooling channel of the engine 50.The first opening 55 is arranged in the water outlet pipeline of the exhaust side of the engine 50;the second opening 57 is arranged in the water return pipeline of the exhaust side of the engine 50.For example, for the longitudinally arranged engine 50, such as off-road vehicle, the first and second openings 55 and 57 are arranged in the right side of the engine cylinder;for the transversely arranged engine 50, such as car, etc., the first and second openings 55 and 57 are arranged in the back side of the engine cylinder, but are not limited to this, the arrangement position of the first and second openings 55 and 57 is selected according to the principle of facilitating installation and shortening the length of the water inlet pipeline and the water return pipeline.The water inlet pipeline 13 of the anti-freezing device 10 of the turbocharger 20 is connected to the first opening 55.The water return pipeline 15 of the anti-freezing device 10 is connected to the second opening 57.One of the steel band-shaped elastic ring hoop, flange and thread is used to seal between the water inlet pipeline 13 and the first opening 55 and between the water return pipeline 15 and the second opening 57.It is preferred to use the steel band-shaped elastic ring hoop to connect and seal.
[0059] It is thereby avoided that the fluid leaks from the connection, so that the water jacket is connected to the water pipeline of the engine cylinder, the inner wall of the front air intake pipe of the turbocharger is heated by the waste heat of the engine interior coolant, and the ice block condensed on the inner wall of the front air intake pipe of the turbocharger is avoided from impacting the high-speed rotating supercharger impeller after vibration drop, leading to supercharger damage.
[0060] The utility model further provides a kind of vehicle, which uses the above-mentioned turbocharged engine.It is thereby avoided that the ice block condensed on the inner wall of the front air intake pipe of the turbocharger is impacted by high-speed rotating supercharger impeller after vibration drop, leading to supercharger damage.
[0061] The utility model discloses a front air intake pipe of turbocharger is designed anti -icing device, and anti -icing device is connected with engine cylinder body waterway, and the inner wall of the front air intake pipe of turbocharger is heated using the waste heat of the fluid of the cooling system of engine, thereby avoiding in the process of car in cold environment, due to the wall surface temperature of the front air intake pipe of turbocharger and the low temperature of air intake, the ice is easy to form in the inside of the front air intake pipe of turbocharger, and the ice block is impacted high -speed rotating supercharger impeller after the vibration drop, and the supercharger is damaged.
[0062] The above series of detailed description is only the specific description of the feasible embodiment of the utility model, and is not used to limit the protection scope of the utility model, and equivalent implementation schemes or changes, such as the combination, division or repetition of features, made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.
Claims
1. A front intake pipe (21) of a turbocharger (20) that connects an engine (50) of a vehicle, characterized by, The front air intake pipe (21) has an anti-freezing device (10) for heating the inner wall of the front air intake pipe (21), the anti-freezing device (10) comprises: a water jacket (11) arranged inside the front air intake pipe (21), a cavity (111) is formed between the outer wall of the water jacket (11) and the inner wall of the front air intake pipe (21); a water inlet (211) and a water outlet (213) both arranged on the shell of the front air intake pipe (21) and communicating with the cavity (111), the water inlet (211) is arranged higher than the water outlet (213); a water inlet pipeline (13) having one end connected to the cylinder cooling pipeline of the engine (50) and the other end connected to the water inlet (211); and a water outlet pipeline (15) having one end connected to the cylinder cooling pipeline of the engine (50) and the other end connected to the water outlet (213).
2. The turbocharger (20) inlet air feed pipe (21) as described in claim 1, characterized in that The anti-freezing device (10) further comprises: a water inlet valve (131) arranged in the water inlet pipeline (13); and a water outlet valve (151) arranged in the water outlet pipeline (15).
3. The front air intake pipe (21) of the turbocharger (20) according to claim 2, wherein the water inlet pipeline (13) and the water inlet (211) and the water outlet pipeline (15) and the water outlet (213) are sealed by one of a steel band-shaped elastic hoop, a flange and a thread.
4. The front air intake pipe (21) of the turbocharger (20) according to claim 3, wherein the water inlet pipeline (13) and the water outlet pipeline (15) are both rubber tubes.
5. The front air intake pipe (21) of the turbocharger (20) according to claim 4, wherein the water inlet valve (131) and the water outlet valve (151) are both ball valves.
6. A turbocharger (20), comprising: a front air intake pipe (21) according to any one of claims 1 to 5.
7. A turbocharged engine characterised in that, an engine (50) having a first opening (55) and a second opening (57) both arranged in the cylinder cooling pipeline of the engine and communicating with the cylinder inner cooling passage of the engine (50); and a turbocharger (20) according to claim 6, wherein the water inlet pipeline (13) of the anti-freezing device (10) of the turbocharger (20) is connected to the first opening (55) and the water outlet pipeline (15) of the anti-freezing device (10) is connected to the second opening (57).
8. The turbocharged engine according to claim 7, wherein the first opening (55) is arranged in the water outlet pipeline of the engine (50) on the exhaust side; and the second opening (57) is arranged in the water outlet pipeline of the engine (50) on the exhaust side.
9. The turbocharged engine according to claim 8, wherein The water inlet pipeline (13) and the first opening (55) and the water return pipeline (15) and the second opening (57) are sealed by one of a steel band-shaped elastic hoop, a flange and a screw thread.
10. Vehicle, characterized in that The vehicle is provided with a turbocharged engine according to any one of claims 7 to 9.