Supercharger, power system and vehicle
By designing the gear wheels and locking parts in the supercharger and changing the transmission ratio, the problem of low power in traditional superchargers when operating at high loads is solved, and the engine is continuously operated and power increased under high loads.
Patent Information
- Application Number
- CN202421550689.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-02
AI Technical Summary
When the traditional turbocharger is running at high load, the pressure ends are surged and overspeeded, causing the exhaust gas bypass valve to be opened and the high-pressure gas is removed bypassing, and the exhaust gas pressure is low, resulting in low engine power.
A supercharger is designed, including a turbine, a press wheel, a first shaft body, a second shaft body, at least one gear wheel and a locking member. The gear wheel is locked through the locking member to rotate, change the transmission ratio, reduce the pressure end speed, and keep the engine running continuously.
By changing the transmission ratio, the power of the engine during high load operation is increased, the bypass valve is reduced or avoided, and the efficiency of exhaust gas pressure is improved.
Smart Images
Figure CN222633309U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicles, and in particular to a supercharger, a power system and a vehicle. Background Art
[0002] A supercharger is a device used by the engine to increase the cylinder intake pressure. Specifically, the air before entering the engine cylinder is first compressed by the supercharger to increase the air density, allowing more air to fill the cylinder, thereby increasing the engine power.
[0003] At present, the flow range of traditional turbochargers cannot be taken into account. When the engine is running at high load, in order to prevent surging and overspeeding at the compression end, the exhaust bypass valve will open to bypass the high-pressure gas, resulting in low efficiency in the use of exhaust pressure, which in turn causes low engine power. Utility Model Content
[0004] The embodiments of the present application provide a supercharger, a power system and a vehicle, which can solve the problem of low engine power.
[0005] In order to solve the above technical problems, this application is implemented as follows:
[0006] In a first aspect, an embodiment of the present application provides a supercharger, including a turbine, a pressure wheel, a first shaft, a second shaft, at least one speed-changing wheel, and a locking member;
[0007] One end of the first shaft is connected to the turbine, the other end of the first shaft is connected to the speed change wheel, one end of the second shaft is connected to the pressure wheel, the other end of the second shaft is connected to the speed change wheel, and the first shaft and the second shaft are arranged on both sides of the speed change wheel;
[0008] The speed change wheel has an outer ring gear, and when the locking member is meshed with the outer ring gear, the speed change wheel is locked to rotate.
[0009] Optionally, the speed change wheel comprises a housing, a main shaft, a first gear and a second gear, the housing has a cavity, the main shaft, the first gear and the second gear are all arranged in the cavity, the main shaft passes through the housing along the axial direction of the housing, the first gear is sleeved on the main shaft, the first gear is rotatable relative to the housing, and the second gear is meshed with the first gear and the inner circumference of the cavity;
[0010] The first shaft is connected to the housing, and the second shaft is connected to the main shaft.
[0011] Optionally, the speed change wheel further includes a bracket, which is disposed in the housing and connected to the housing, and the second end of the first shaft is connected to the housing through the bracket.
[0012] Optionally, the main axis is a cross axis.
[0013] Optionally, the at least one speed-changing wheel comprises a plurality of speed-changing wheels, and the plurality of speed-changing wheels are overlapped and connected in sequence.
[0014] Optionally, the number of the second gears is three, and the three second gears are arranged at intervals around the first gear.
[0015] In a second aspect, an embodiment of the present application provides a power system, comprising the supercharger as described in the first aspect.
[0016] In a third aspect, an embodiment of the present application provides a vehicle comprising a power system as described in the second aspect.
[0017] In the technical solution provided by the embodiment of the present application, the supercharger includes a turbine, a pressure wheel, a first shaft, a second shaft, at least one speed wheel and a locking member; one end of the first shaft is connected to the turbine, the other end of the first shaft is connected to the speed wheel, one end of the second shaft is connected to the pressure wheel, the other end of the second shaft is connected to the speed wheel, and the first shaft and the second shaft are arranged on both sides of the speed wheel; the speed wheel has an outer ring gear, and the locking member is meshed with the outer ring gear to lock the rotation of the speed wheel. In this way, when the locking member locks the speed wheel, the transmission ratio is changed, so that when the engine is running at high load, the speed of the pressure end is reduced to maintain continuous operation, thereby increasing the engine power. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic diagram of the structure of a supercharger provided in an embodiment of the present application;
[0019] Figure 2 A schematic diagram of the structure of a speed-changing wheel provided in an embodiment of the present application;
[0020] Figure 3 Schematic diagram of the speed change wheel provided in the embodiment of the present application Figure 1 ;
[0021] Figure 4 Schematic diagram of the speed change wheel provided in the embodiment of the present application Figure 2 . DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0023] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly.
[0024] See also Figure 1 , Figure 1 The schematic diagram of the structure of the supercharger provided in the embodiment of the present application. As shown in the figure, the supercharger includes a turbine 10, a pressure wheel 20, a first shaft 30, a second shaft 40, at least one speed change wheel 50 and a locking member;
[0025] One end of the first shaft 30 is connected to the turbine 10, and the other end of the first shaft 30 is connected to the speed change wheel 50. One end of the second shaft 40 is connected to the pressure wheel 20, and the other end of the second shaft 40 is connected to the speed change wheel 50. The first shaft 30 and the second shaft 40 are arranged on both sides of the speed change wheel 50.
[0026] The speed change wheel 50 has an outer ring gear, and when the locking member is meshed with the outer ring gear, the speed change wheel 50 is locked to rotate.
[0027] It should be understood that the supercharger may be a turbo 10 supercharger. The turbo 10 supercharger is an air compressor driven by a structure composed of two coaxial impellers using the exhaust gas generated by the operation of the internal combustion engine. Similar to the function of a mechanical supercharger, both can increase the air flow entering the internal combustion engine or boiler, thereby improving combustion efficiency. Commonly used in automobile engines, the turbo 10 supercharger can increase the output power of the internal combustion engine or improve fuel economy at the same output power by utilizing the heat and flow of the exhaust gas.
[0028] In the technical solution provided by the embodiment of the present application, the supercharger includes a turbine 10, a pressure wheel 20, a first shaft 30, a second shaft 40, at least one speed wheel 50 and a locking member; one end of the first shaft 30 is connected to the turbine 10, the other end of the first shaft 30 is connected to the speed wheel 50, one end of the second shaft 40 is connected to the pressure wheel 20, the other end of the second shaft 40 is connected to the speed wheel 50, the first shaft 30 and the second shaft 40 are arranged on both sides of the speed wheel 50; the speed wheel 50 has an outer ring gear, and when the locking member is meshed with the outer ring gear, the speed wheel 50 is locked to rotate. In this way, when the locking member locks the speed wheel 50, the transmission ratio is changed, so that when the engine is running at high load, the speed of the pressure end is reduced to maintain continuous operation, thereby increasing the engine power.
[0029] In the embodiment of the present application, the transmission ratio between the turbine end and the pressure end of the supercharger is changed to increase or decrease to meet the needs of different engines. Specifically, when the engine is running at a low load, the speed change structure switch is closed, the turbine end and the pressure end are directly connected, and the transmission ratio is 1:1. When the engine load increases to a certain working condition, the speed change structure opens a switch, and the turbine end transmission reduces the transmission ratio to 2:1 (or other speed ratios, the gear size can be adjusted as needed) through the gear structure in the stepless speed change. When the engine reaches high load operation, the speed change structure switch is fully opened, so that the pressure end can always maintain efficient operation without overspeeding or blocking problems.
[0030] It should be understood that the supercharger provided in the embodiment of the present application can be applied to a dedicated hybrid engine to provide the engine with highly compressed air when the engine is running at a low load, thereby achieving low-speed and high-torque output.
[0031] It should be understood that the supercharger provided in the embodiment of the present application can realize low-frequency opening of the waste gas bypass valve or realize non-opening of the bypass valve or non-bypass valve structure. By changing the speed ratio between the turbine end and the pressure end, the exhaust gas capacity is fully utilized, the bypass valve bypass gas is reduced or not opened, and the exhaust gas pressure utilization efficiency is improved, thereby achieving the effect of increasing the engine power.
[0032] Alternatively, if Figures 2 to 4 As shown, the speed change wheel 50 includes a housing 51, a main shaft 52, a first gear 53 and a second gear 54. The housing 51 has a cavity. The main shaft 52, the first gear 53 and the second gear 54 are all arranged in the cavity. The main shaft 52 passes through the housing 51 along the axial direction of the housing 51. The first gear 53 is sleeved on the main shaft 52. The first gear 53 is rotatable relative to the housing 51. The second gear 54 is meshed with the first gear 53 and the inner circumference of the cavity.
[0033] The first shaft 30 is connected to the housing 51 , and the second shaft 40 is connected to the main shaft 52 .
[0034] Optionally, the speed change wheel 50 further includes a bracket 55 , which is disposed in the housing 51 and connected to the housing 51 , and the second end of the first shaft 30 is connected to the housing 51 through the bracket 55 .
[0035] Optionally, the main axis 52 is a cross axis.
[0036] Optionally, the at least one speed-changing wheel 50 includes a plurality of speed-changing wheels 50 , and the plurality of speed-changing wheels 50 are overlapped and connected in sequence.
[0037] In the embodiment of the present application, a plurality of speed change wheels 50 are provided to achieve the function of stepless speed change.
[0038] Optionally, the number of the second gears 54 is three, and the three second gears 54 are arranged at intervals around the first gear 53 .
[0039] The embodiment of the present application also provides a power system, including the supercharger as described above. Since the technical solution of this embodiment includes all the technical solutions of the above embodiments, it can at least achieve all the technical effects of the above embodiments, which will not be described one by one here.
[0040] The embodiment of the present application also provides a vehicle, including the power system as described above. Since the technical solution of this embodiment includes all the technical solutions of the above embodiments, it can at least achieve all the technical effects of the above embodiments, which will not be described one by one here.
[0041] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. A supercharger, characterized in that: It includes a turbine, a pressure wheel, a first shaft body, a second shaft body, at least one speed-changing wheel and a locking member; One end of the first shaft is connected to the turbine, the other end of the first shaft is connected to the speed change wheel, one end of the second shaft is connected to the pressure wheel, the other end of the second shaft is connected to the speed change wheel, and the first shaft and the second shaft are arranged on both sides of the speed change wheel; The speed change wheel has an outer ring gear, and when the locking member is meshed with the outer ring gear, the speed change wheel is locked to rotate.
2. The supercharger according to claim 1, characterized in that: The speed change wheel comprises a housing, a main shaft, a first gear and a second gear. The housing has a cavity. The main shaft, the first gear and the second gear are all arranged in the cavity. The main shaft passes through the housing along the axial direction of the housing. The first gear is sleeved on the main shaft. The first gear is rotatable relative to the housing. The second gear is meshed with the first gear and the inner circumference of the cavity. The first shaft is connected to the housing, and the second shaft is connected to the main shaft.
3. The supercharger according to claim 2, characterized in that: The speed-changing wheel further comprises a bracket, wherein the bracket is disposed in the housing and connected to the housing, and the second end of the first shaft is connected to the housing through the bracket.
4. The supercharger according to claim 2, characterized in that: The main axis is a cross axis.
5. The supercharger according to claim 1, characterized in that: The at least one speed-changing wheel comprises a plurality of speed-changing wheels, and the plurality of speed-changing wheels are overlapped and connected in sequence.
6. The supercharger according to claim 2, characterized in that: The number of the second gears is three, and the three second gears are arranged at intervals around the first gear.
7. A power system, characterized in that: Comprising a supercharger as described in any one of claims 1-6.
8. A vehicle, characterized in that: Comprising the power system as claimed in claim 7.