High-pressure pulse type supercharged engine
阅读说明:本技术 一种高压脉冲式增压发动机 (High-pressure pulse type supercharged engine ) 是由 王守正 于 2019-10-30 设计创作,主要内容包括:本发明提供了一种高压脉冲式增压发动机,包括发动机本体、储气罐、空气压缩机、冷却器和控制器,所述发动机本体上设置有排气门和进气组,所述进气组属于单个缸内两套独立的进气系统,进气组包括第一进气门和第二进气门,其中第一进气门连接第一进气歧管为正常的自然吸气,所述第二进气歧管的出气口处依次设置有自动节流阀、流量检测器、自动控制阀和止回阀;所述储气罐内设置有压力检测器;所述空气压缩机的变速动力轮与所述发动机本体的驱动轮通过传动结构连接;所述冷却器串联设置在所述空气压缩机和所述止回阀之间;所述控制器连接于所述自动节流阀、所述自动控制阀、所述压力检测器和所述流量检测器。(The invention provides a high-pressure pulse type supercharged engine which comprises an engine body, an air storage tank, an air compressor, a cooler and a controller, wherein an exhaust valve and an air inlet group are arranged on the engine body, the air inlet group belongs to two independent air inlet systems in a single cylinder, and comprises a first air inlet valve and a second air inlet valve, wherein the first air inlet valve is connected with a first air inlet manifold to normally and naturally suck air, and an automatic throttle valve, a flow detector, an automatic control valve and a check valve are sequentially arranged at an air outlet of the second air inlet manifold; a pressure detector is arranged in the gas storage tank; the variable speed power wheel of the air compressor is connected with the driving wheel of the engine body through a transmission structure; the cooler is disposed in series between the air compressor and the check valve; the controller is connected to the automatic throttle valve, the automatic control valve, the pressure detector, and the flow detector.)
1. A high-pressure pulse-type supercharged engine, characterized by comprising:
the engine comprises an engine body (101), wherein an exhaust valve (106) and an air inlet group (107) are arranged on the engine body, the air inlet group comprises a first air inlet valve (108) and a second air inlet valve (109), the exhaust valve is communicated with an exhaust manifold, the first air inlet valve is communicated with a first air inlet manifold (111), the second air inlet valve is communicated with a second air inlet manifold (112), a control valve assembly for controlling and detecting air flow is arranged at an air outlet of the second air inlet manifold, and the control valve assembly comprises a check valve (116) and an automatic control valve (115);
a gas reservoir (102) disposed between the check valve and the automatic control valve, the gas reservoir having a pressure detector (117) disposed therein;
an air outlet of the air compressor (103) is communicated with an air inlet of the second air inlet manifold, and a variable-speed power wheel (118) of the air compressor is connected with a driving wheel (119) of the engine body through a transmission structure (120);
a cooler (104) disposed in series between the air compressor and the check valve;
and the controller (105) is internally provided with a detection assembly and a control output, and the detection assembly and the control output are connected to the pressure detector, the control valve assembly and the variable-speed power wheel.
2. The high-pressure pulse type supercharged engine according to claim 1, characterized in that the control valve assembly further comprises an automatic throttle valve (113) and a flow detector (114).
3. The high-pressure pulse type supercharged engine according to claim 1, characterized in that an intake camshaft (124) is provided at the intake group, and cam members corresponding to the inclination angles of the first intake valve and the second intake valve, respectively, are provided on the intake camshaft.
4. The high-pressure pulse type supercharged engine according to claim 3, characterized in that the intake camshaft includes a first camshaft (125) on which the first cam corresponding to the first intake valve is provided and a second camshaft (126) on which the second cam corresponding to the second intake valve is provided, and the cam member includes a first cam (127) on which the first cam corresponding to the first intake valve is provided and a second cam (128).
5. The high-pressure pulse type supercharged engine according to claim 4, characterized in that the first camshaft and the second camshaft are arranged coaxially or in a different-shaft arrangement structure.
6. The high-pressure pulse type supercharged engine according to claim 1, characterized in that an air filtering device (121) is arranged at a normal-pressure air inlet of the air compressor.
7. The high-pressure pulse type supercharged engine according to claim 1, characterized in that a tension pulley (122) is arranged between transmission structures connected with the variable-speed power wheel and the driving wheel, a clutch is arranged in the variable-speed power wheel, the clutch is connected with the controller, and the clutch is an electrically or pneumatically controlled clutch.
8. The high-pressure pulse type supercharged engine according to claim 1, characterized in that the automatic control valve is an electrically or pneumatically controlled automatic control valve.
9. The high-pressure pulse type supercharged engine according to claim 1, characterized in that the speed-changing power wheel adopts an electrically or pneumatically controlled stepless speed-changing grooved wheel.
10. The high-pressure pulse type supercharged engine according to claim 1, characterized in that the automatic throttle valve is an electrically or pneumatically controlled automatic throttle valve.
Technical Field
The invention relates to the technical field of engine supercharging, in particular to a high-pressure pulse type supercharged engine.
Background
The supercharging of the automobile engine means that air or combustible mixed gas entering an engine cylinder is compressed or compressed in advance and then cooled so as to improve the density of the air or combustible mixed gas entering the cylinder, so that the air charging quantity is increased, more fuel is well combusted under the cooperation of an oil supply system, and the purposes of improving the dynamic property of the engine, improving the specific power, improving the torque, improving the fuel economy and reducing the exhaust emission and noise are achieved, and the engine becomes a supercharged engine. The conventional common supercharging technology comprises mechanical supercharging and exhaust gas turbocharging, in the using process of the mode, the supercharging effect is only suitable for one air suction stroke in four strokes of the action of an engine, the problems of time delay and rotation speed limitation in the supercharging process exist, the operation is unreasonable, and the applicability needs to be widened.
Disclosure of Invention
The invention provides a novel high-pressure pulse type supercharged engine, and aims to solve the technical problem that the utilization rate and the applicability of supercharging equipment in the conventional supercharged engine are low.
In view of the above, the invention provides a novel high-pressure pulse supercharged engine, which comprises an engine body, an air storage tank, an air compressor, a cooler and a controller, wherein an exhaust valve and an air inlet set are arranged on the engine body, the air inlet set comprises a first intake valve and a second intake valve, the exhaust valve is communicated with an exhaust manifold, the first intake valve is communicated with a first air inlet manifold, the second intake valve is communicated with an air outlet of a second air inlet manifold, and an automatic throttle valve, a flow detector, an automatic control valve and a check valve are sequentially arranged at the air outlet of the second air inlet manifold; an opening of the air storage tank is arranged between the check valve and the automatic control valve, and a pressure detector is arranged in the air storage tank; an air outlet of the air compressor is communicated with an air inlet of the second air inlet manifold, and a variable-speed power wheel of the air compressor is connected with a driving wheel of the engine body through a transmission structure; the cooler is disposed in series between the air compressor and the check valve; the controller is internally provided with a detection assembly and a control output, the detection assembly and the control output are connected with the pressure detector and the flow detector through signal sampling lines, and the detection assembly and the control output are further connected with the clutch, the variable speed power wheel, the automatic throttle valve and the automatic control valve through control lines.
In the technical scheme, an exhaust valve, a first intake valve and a second intake valve are arranged on an engine body, the first intake valve is connected with a first intake manifold and can keep normal speed air suction when the engine is started, the second intake valve is connected with an air compressor through a second intake manifold, a speed change power wheel of the air compressor is connected with a driving wheel of the engine body through a transmission structure, the transmission structure adopts a transmission belt structure, so that the engine body drives the air compressor to operate when the first intake valve provides air intake operation, air is compressed and then enters a cylinder body of the engine body at a higher speed, and pressurization is realized quickly, namely the power of the air compressor comes from an output shaft of the engine body; the automatic throttle valve can flexibly adjust air inflow according to air pressure, the automatic control valve is closed when air pressure is low, and is opened when pressurized air pressure is reached, so that the flow of compressed air in the second air inlet manifold can be effectively controlled, and the stable transportation of the compressed air is convenient to maintain; a cooler is arranged between the air compressor and the check valve and can be used for reducing heat generated in the process of compressing air; the air inlet of the second air inlet manifold is provided with a flow detector, the air storage tank is internally provided with a pressure detector, a detection assembly and a control output in the controller are respectively connected with the automatic throttle valve, the automatic control valve, the pressure detector and the flow detector, the controller is convenient to collect the pressure and the flow in the first air inlet manifold and the second air inlet manifold in real time and collect the pressure and the flow in the air storage tank, namely, the controller is used as a unit circuit device for controlling each switch to adjust and ensuring the normal and stable operation of the system and is used for data monitoring, and the monitoring point is used for monitoring the pressure of the air storage tank. The control and regulation points are the automatic throttle valve, the automatic control valve and other key points which need to be controlled and regulated, and after data analysis, the output pressure of the air compressor is regulated by controlling the running speed of the air compressor, the running speed is high, the applicability is high, and the utilization rate of the supercharging equipment is effectively improved.
In any one of the above technical solutions, preferably, an intake camshaft is provided at the intake group, and cam members corresponding to inclination angles of the first intake valve and the second intake valve are provided on the intake camshaft; the intake camshaft comprises a first camshaft and a second camshaft, the cam part comprises a first cam and a second cam, the first camshaft is provided with the first cam corresponding to the first intake valve, and the second camshaft is provided with the second cam corresponding to the second intake valve; the first camshaft and the second camshaft are coaxially arranged or are arranged in a different mode.
In the technical scheme, an air inlet camshaft is arranged at an air inlet group, cam parts corresponding to the inclination angles of a first air inlet valve and a second air inlet valve are arranged on the air inlet camshaft, and when the first cam and the second cam are not coaxial and are controlled independently, the second air inlet valve is controlled by a cam lever; the cam separation angles of the first intake valve and the second intake valve on the intake camshaft are controlled to be different, so that the opening and closing time of the first intake valve and the second intake valve is controlled; namely, the first cam shaft and the second cam shaft adopt a primary-secondary shaft structure that an inner shaft is embedded in an outer shaft provided with an opening, so that the first cam and the second cam are coaxially arranged; or the first cam and the second cam are directly and coaxially arranged; or the first cam and the second cam are arranged in a non-coaxial mode, the second intake valve is controlled by a valve lever, and the valve lever is arranged inside the engine body through a lever supporting shaft.
In any one of the above technical solutions, preferably, an air filtering device is disposed at the normal pressure air inlet of the air compressor.
In the technical scheme, the air filtering device arranged at the normal-pressure air inlet of the air compressor can filter air sucked into the air compressor, so that dust is prevented from entering and affecting the normal operation of the system.
In any one of the above technical solutions, preferably, a tension pulley is provided between the transmission structures connected to the speed change power wheel and the driving wheel, a clutch is coaxially provided in the speed change power wheel, and the clutch is connected to the controller.
In the technical scheme, a tension wheel is arranged between the transmission structure connected with the variable-speed power wheel and the driving wheel, the tension of the transmission structure can be adjusted according to actual requirements, a clutch coaxially arranged in the variable-speed power wheel can separate power under the condition of emergency failure or the condition that the air compressor needs to stop, and the controller is connected to the clutch and is convenient for automatically adjusting the running state according to real-time data.
In any one of the above technical solutions, preferably, the clutch is an electrically or pneumatically controlled clutch; the automatic control valve adopts an electric control or pneumatic control automatic control valve; the speed change power wheel adopts an electric control or pneumatic control stepless speed change grooved wheel; the automatic throttle valve is an electric control or pneumatic control automatic throttle valve.
In the technical scheme, the electric control or pneumatic control stepless speed change wheel can automatically change the diameter of the grooved wheel according to the air pressure requirement, adjust the working efficiency of the air compressor, control the output compressed air to achieve reasonable air pressure and flow, and facilitate quick pressurization.
Compared with the prior art, the invention has the advantages that:
(1) the novel supercharging structure is provided, an exhaust valve and an air inlet group are arranged on an engine body, the air inlet group comprises a first air inlet and a second air inlet, the first air inlet belongs to normal air suction setting and directly sucks outside air into the engine, the second air inlet belongs to a supercharging valve, and in the process of air suction stroke of the first air inlet valve, the second air inlet valve is opened in a delayed mode under the control of a cam corresponding to the second air inlet valve, so that high-pressure air can enter a cylinder body instantly, quick supercharging is achieved, and the utilization rate of supercharging equipment is effectively improved;
(2) the automatic throttle valve, the automatic control valve and the check valve are sequentially arranged on the second air inlet manifold, the detection assembly in the controller is connected to the automatic throttle valve, the pressure detector and the flow detector, the controller can conveniently acquire the pressure and the flow in the first air inlet manifold and the second air inlet manifold and the pressure in the air storage tank in real time, and after data analysis, the output pressure of the air compressor is adjusted by controlling the running speed of the air compressor, so that the running speed is high, and the applicability is high.
Drawings
Fig. 1 shows a schematic structural diagram of a high-pressure pulse type supercharged engine according to an embodiment of the invention;
FIG. 2 shows a perspective schematic view of one embodiment of a coaxially arranged component A based on FIG. 1;
FIG. 3 shows a schematic side perspective structural view of one embodiment of a coaxially arranged component A based on FIG. 1;
FIG. 4 shows a schematic side perspective structural view of another embodiment of a coaxially arranged component A based on FIG. 1;
FIG. 5 shows a schematic structural diagram of an embodiment of a component B based on FIG. 4;
FIG. 6 is a schematic structural diagram of a second cam based on FIG. 4;
FIG. 7 shows a schematic side perspective structural view of one embodiment of component A based on the different axial arrangements of FIG. 1;
FIG. 8 shows a schematic block diagram of the connection of a controller according to an embodiment of the invention;
fig. 9 shows a frequency conversion diagram of a high-pressure pulse type supercharged engine according to an embodiment of the invention.
Wherein, the names corresponding to the reference numbers in the drawings are: the engine comprises an
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The present invention will be further described with reference to fig. 1 to 9.
As shown in fig. 1 to 9, a high-pressure pulse type supercharged engine comprises an
Furthermore, an
Further, an
Further, the clutch 123 is an electrically or pneumatically controlled clutch 123; the
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