Engine

Abstract

The invention provides an engine, which relates to the technical field of engines, and comprises a crankshaft connecting rod mechanism rotatably arranged on a first mounting seat, a valve transmission group rotatably arranged on a second mounting seat, a cylinder body, a heating chamber arranged in the cylinder body, a cylinder barrel communicated with the heating chamber, and a liquid spraying device arranged in the heating chamber, the liquid spraying device is connected with the water boiler through a water supply pipe provided with a water valve, a piston of the crankshaft connecting rod mechanism is assembled in the cylinder barrel in a sealing and sliding mode, the heating chamber is provided with an air valve assembly controlling the heating chamber to be communicated with the outside, and the air valve assembly, the water valve and the crankshaft connecting rod mechanism are in transmission fit with the air valve transmission set. The device effectively utilizes energy.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to an engine. Background Art

[0002] At present, engines mainly include diesel engines, gasoline engines, natural gas engines, etc. The common feature of these internal combustion engines is that they rely on fluid fuels, and the fuel prices are relatively high. However, in reality, there are a large number of low-cost solid fuels, such as coal, firewood, and biomass pellet fuels extruded from straw. There is a lack of effective utilization means, resulting in limited energy utilization of the engine. Moreover, today's smokeless gasification furnace technology and smokeless reverse combustion furnace technology make the combustion of these solid fuels more environmentally friendly than before. Summary of the Invention

[0003] The purpose of the present invention is to provide an engine to solve the technical problem of limited energy utilization in the prior art.

[0004] To solve the above problems, an engine involved in the present invention adopts the following technical solutions: An engine provided by the present invention includes a crankshaft connecting rod mechanism rotatably arranged on a first mounting seat, a valve train rotatably arranged on a second mounting seat, and a cylinder block. A heating chamber and a cylinder barrel communicating with the heating chamber are provided in the cylinder block. A liquid spraying device is arranged in the heating chamber. The liquid spraying device is connected to a water heating furnace through a water supply pipe provided with a water valve. The piston of the crankshaft connecting rod mechanism is hermetically and slidably assembled in the cylinder barrel. A valve assembly for controlling its communication with the outside is provided on the heating chamber. The valve assembly, the water valve, and the crankshaft connecting rod mechanism are respectively in transmission cooperation with the valve train.

[0005] Preferably, a pressure relief valve for controlling its communication with the outside is provided on the heating chamber.

[0006] Preferably, the liquid spraying device includes a plurality of nozzles, and the plurality of nozzles are spaced apart and arranged on the water supply pipe penetrating into the heating chamber and communicating with it.

[0007] Preferably, the valve train includes a camshaft rotatably arranged on the second mounting seat, a second sprocket assembled on the camshaft, a first cam and a second cam. The first sprocket of the crankshaft connecting rod mechanism is in transmission cooperation with the second sprocket through a chain. The second cam of the camshaft is in transmission cooperation with the push rod of the valve assembly. The first cam of the camshaft is in transmission cooperation with the water valve. The camshaft controls the steam exhaust of the heating chamber by rotating to drive the push rod to reciprocate linearly, and controls the liquid spraying of the liquid spraying device by driving the water valve to open and close. The phase difference between the first cam and the second cam is 180 degrees.

[0008] Preferably, the water valve is set as a push-button plunger valve.

[0009] Preferably, a combustion chamber for heating the bottom wall of the heating chamber is further provided in the cylinder block below the heating chamber. A first grille for dividing it into a first furnace and a first ash bin is arranged in the combustion chamber. First heat-conducting tubes are arranged at intervals on the bottom plate of the heating chamber. The closed ends of the first heat-conducting tubes extend into the combustion chamber, and their open ends communicate with the heating chamber. The first heat-conducting tubes are seamlessly connected to the bottom plate of the heating chamber.

[0010] Preferably, it further includes a water-boiling furnace. An upper heating chamber, a second furnace, and a second ash bin are sequentially arranged in the water-boiling furnace from top to bottom. A second grille for separating the two is arranged between the second furnace and the second ash bin. An inlet and an outlet are provided on the heating chamber. The outlet is communicated with the liquid spraying device through a water supply pipe, and the inlet is communicated with an external water supply device through a pipeline. Second heat-conducting tubes are arranged at intervals on the bottom plate of the heating chamber. The closed ends of the second heat-conducting tubes extend into the second furnace, and their open ends communicate with the heating chamber. The second heat-conducting tubes are seamlessly connected to the bottom plate of the heating chamber.

[0011] Preferably, a pressure relief valve is provided at the bottom of the heating chamber for pressure relief and engine shutdown in case of engine failure.

[0012] The beneficial effects of the present invention are as follows: An engine provided by the present invention includes a crankshaft connecting rod mechanism rotatably arranged on a first mounting seat, a valve transmission group rotatably arranged on a second mounting seat, and a cylinder block. Different from the prior art, a heating chamber and a cylinder barrel communicating with the heating chamber are provided in the cylinder block. A liquid spraying device is arranged in the heating chamber. The liquid spraying device is connected to the water-boiling furnace through a water supply pipe provided with a water valve. The piston of the crankshaft connecting rod mechanism is hermetically and slidably assembled in the cylinder barrel. A valve assembly for controlling its communication with the outside is arranged on the heating chamber. The valve assembly, the water valve, and the crankshaft connecting rod mechanism are respectively in transmission cooperation with the valve transmission group. The present invention effectively solves the problem that existing engines rely on high-cost fuels, realizes the utilization of solid fuels, etc. The fuel source is wide and the cost is low. At the same time, the thermal energy utilization rate is improved, the working efficiency is enhanced. And compared with traditional steam engines, the substance entering the engine is water with a large density instead of steam. The system does not have a huge steam box, and the speed of the working substance per unit mass entering the engine is fast, so the working efficiency is high. And after the water is sprayed out by the nozzle, it vaporizes explosively, and the vaporization is rapid, that is, the expansion is rapid, and the speed of pushing the piston is also correspondingly fast. It can also be vividly called an explosion-boiling steam engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below: Figure 1 It is a schematic structural diagram of an engine; Figure 2 It is a schematic structural diagram of the water-boiling furnace.

[0014] In the figure: 1. heating chamber; 2. cylinder; 3. spray device; 4. water valve; 5. piston; 6. push rod; 7. camshaft; 8. first cam; 9. second cam; 10. second sprocket; 11. chain; 12. first sprocket; 13. first mounting seat; 14. second mounting seat; 15. flywheel; 16. crankshaft; 17. connecting rod; 18. first heat pipe; 19. first smoke outlet; 20. pressure relief valve; 21. exhaust valve; 22. heating chamber; 23. second furnace; 24. second grille; 25. water outlet; 26. water inlet; 27. second heat pipe; 28. smoke inlet; 29. smoke outlet; 30. second ash bin. DETAILED DESCRIPTION

[0015] In order to make the technical purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] An engine provided by the present invention, as shown in the figure, includes a crankshaft connecting rod mechanism rotatably arranged on a first mounting seat 13, a valve transmission group rotatably arranged on a second mounting seat 14, a cylinder body, and a starter. The starter is coupled to the crankshaft connecting rod mechanism for transmission, and the crankshaft connecting rod mechanism is an existing device.

[0017] A heating chamber 1 is provided in the cylinder body, and a liquid spraying device 3 is installed in the heating chamber 1. The liquid spraying device 3 is connected to the water boiler through a water supply pipe equipped with a water valve 4. A cylinder barrel 2 connected to the heating chamber 1 is provided on the cylinder body, and the piston 5 of the crankshaft connecting rod mechanism is sealed and slidably assembled in the cylinder barrel 2. An exhaust port connected to the outside for discharging steam therein is provided on the heating chamber 1. A pressure relief valve 20 for controlling its connection with the outside is also provided on the heating chamber 1, which is used for depressurizing and shutting down the engine when a failure occurs, to ensure safe and stable operation of the system. A valve assembly for controlling the opening and closing of the exhaust port is installed on the heating chamber 1, and the valve assembly, water valve 4, and crankshaft connecting rod mechanism are respectively coordinated with the valve transmission group.

[0018] The liquid spraying device 3 includes a plurality of nozzles, which are spaced apart and connected to the water supply pipe in the heating chamber 1 to ensure that the liquid can be sprayed into the heating chamber 1 in a uniform and dispersed manner to achieve efficient vaporization.

[0019] As an optional implementation, the valve train includes a camshaft 7 rotatably arranged on the second mounting seat 14, a second sprocket 10 assembled on the camshaft 7, a first cam 8 and a second cam 9. The first cam 8 and the second cam 9 have a phase difference of 180 degrees. The first sprocket 12 of the crankshaft connecting rod mechanism is in transmission cooperation with the second sprocket 10 through a chain 11, so that the crankshaft connecting rod mechanism rotates to drive the camshaft 7 to rotate. The second cam 9 of the camshaft 7 is in transmission cooperation with the push rod 6 of the valve assembly, and the first cam 8 of the camshaft 7 is in transmission cooperation with the water valve 4. The water valve 4 is set as a push-type plunger valve. This structure is simple and the control is precise, and it can reliably realize the on-off control of the water supply pipeline. Through the rotation of the camshaft 7, the device drives the push rod 6 of the valve assembly to reciprocate linearly to control the steam exhaust of the heating chamber 1, and at the same time drives the valve core of the water valve 4 to reciprocate linearly to control the spraying of the spraying device 3 by controlling the opening and closing of the water valve 4. The first cam and the second cam have a phase difference of 180 degrees.

[0020] Specifically, the valve assembly includes an exhaust valve 21, a push rod 6, a compression spring and a sleeve. The sleeve is installed on the cylinder block. A compression spring and a spring seat are sleeved on the push rod 6. The push rod 6 is slidably assembled on the sleeve. The compression spring is located between the spring seat and the sleeve. One end of the push rod 6 is connected to the exhaust valve 21, and the other end of the push rod 6 is in transmission cooperation with the second cam 9. The other end of the push rod 6 is always in contact with the second cam 9. When the radius of the contact point between the second cam 9 and the push rod 6 on the second cam 9 changes from small to large, the second cam 9 will push the push rod 6 to the left. When the radius of the contact point on the second cam 9 changes from large to small, the push rod 6 will be pushed to the right again under the pressure of the compression spring, and so on.

[0021] The crankshaft connecting rod mechanism includes a piston group, a connecting rod 17 and a crankshaft 16 arranged in the rod body. The piston group includes a piston 5, an air ring and an oil ring sleeved outside the piston 5. One end of the connecting rod 17 is connected to the piston group, and the other end of the connecting rod 17 is connected to the crankshaft 16 through a bearing bush. The crankshaft 16 is rotatably assembled on the first mounting seat 13. A flywheel 15 and a first sprocket 12 are assembled on the crankshaft 16. The starter and the crankshaft 16 are coupled and driven by meshing their respective gears.

[0022] The water valve 4 includes a valve cavity, a valve core that is limited and slidably assembled in the valve cavity, and a spring that is mounted on the inner bottom surface of the valve cavity and between the valve cores. A guide pin protrudes from the surface of the valve core, and there is a pin slot on the inner wall of the valve cavity that cooperates with the guide pin, so that the valve core slides but does not rotate in the valve cavity. The end of the valve core away from the spring penetrates out of the valve cavity. Coaxial water inlets connected to the external water heating furnace and water outlets connected to the liquid spraying device 3 are provided in the radial direction of the valve cavity. A water passing hole is provided in the radial direction of the valve core. During the process of the valve core being pushed by the outside towards the spring direction, the water passing hole can communicate the water inlet and the water outlet and gradually expand the water passing orifice. The valve core is in driving cooperation with the first cam 8. The end of the valve stem outside the valve cavity of the valve core is always in contact with the first cam 8. When the radius at which the contact point between the first cam 8 and the end of the valve stem is located on the first cam 8 changes from small to large, the first cam 8 will push the valve stem to the left, so that the through hole on the valve core communicates with the water inlets and outlets on the valve cavity, and water passes through. At the same time, the spring in the valve cavity is compressed. When the radius at which the contact point between the first cam 8 and the end of the valve stem is located on the first cam 8 changes from large to small, the valve core is pushed to the right by the elastic force of the spring, so that the through hole on the valve core misses the water inlets and outlets on the valve cavity, interrupting the water inlet, and this cycle repeats.

[0023] Furthermore, a combustion chamber for heating the bottom wall of the heating chamber 1 is also provided in the cylinder body below the heating chamber 1. A first grid for dividing it into a first furnace chamber and a first ash bin is provided in the combustion chamber. First heat conduction tubes are arranged at intervals on the bottom plate of the heating chamber. The closed ends of the first heat conduction tubes extend into the combustion chamber, and their open ends communicate with the heating chamber. The first heat conduction tubes are seamlessly connected to the bottom plate of the heating chamber. A first smoke outlet is provided on the rear side wall of the combustion chamber. Such a design increases the heat transfer area and improves the heat transfer efficiency, enabling the heat of the combustion chamber to be more effectively transferred to the heating chamber 1.

[0024] Further, it further includes a water heating furnace. Inside the water heating furnace, a heating chamber 22, a second furnace chamber 23, and a second ash bin 30 are sequentially arranged from top to bottom. A second grille 24 that separates the two is arranged between the second furnace chamber 23 and the second ash bin 30. An inlet 26 and an outlet 25 are provided on the heating chamber 22. The outlet 25 is connected to the liquid spraying device 3 through a water supply pipe, and the inlet 26 is connected to an external water replenishing device through a pipeline. Second heat conduction tubes 27 are arranged at intervals on the bottom plate of the heating chamber 22. The closed ends of the second heat conduction tubes 27 extend into the second furnace chamber 23, and their open ends are connected to the heating chamber. The second heat conduction tubes 27 are seamlessly connected to the bottom plate of the heating chamber 22. A first smoke outlet 19 is provided on the first furnace chamber, and the first smoke outlet 19 of the first furnace chamber is connected to the smoke inlet 28 of the second furnace chamber 23 through a pipeline. The smoke outlet 29 of the second furnace chamber 23 is connected to the first furnace chamber through a heat exchanger. Since the temperature of the flue gas exiting the water heating furnace is still relatively high, the heat exchanger can also be used to heat air into hot air, and the hot air enters the heating furnace to assist in the combustion of fuel, further increasing the furnace temperature. At the same time, the exhaust port is connected to the heat exchanger through a pipeline, and the heat exchanger preheats the makeup water for use by the system, further improving the thermal efficiency.

[0025] The working principle of this device is as follows: When the engine is working, the first sprocket 12 of the crankshaft connecting rod mechanism drives the second sprocket 10 of the valve train through the chain 11, causing the camshaft 7 to rotate. The first cam 8 on the camshaft 7 drives the water valve 4 (a push-type plunger valve) to open, and the high-temperature and high-pressure water is sprayed into the heating chamber 1 through the nozzles of the liquid spraying device 3 via the water supply pipe. Since the temperature in the heating chamber 1 is heated to a high temperature state by the lower combustion chamber, the water rapidly vaporizes and expands, generating pressure to push the piston 5 to move and do work. When the piston 5 reaches the leftmost end, the water valve 4 closes and no more water enters. The flywheel 15 of the crankshaft connecting rod mechanism continues to rotate under the action of inertia, driving the second cam 9 on the camshaft 7 to push the valve of the valve assembly to open, discharging the steam in the heating chamber 1. Subsequently, the inertia of the flywheel 15 causes the piston 5 to move to the rightmost end, and the valve of the valve assembly closes. This cycle is repeated to achieve a power stroke and an exhaust stroke.

[0026] The fuel in the combustion chamber burns in the first furnace chamber, and the heat is transferred to the heating chamber 1.

[0027] Before the engine starts, the water heating furnace needs to be fired in advance to heat the water to high-temperature and high-pressure hot water for the engine to work. After the engine starts, the high-temperature flue gas discharged from the combustion chamber below the heating chamber 1 enters the water heating furnace to heat the water boiler body. At this time, fuel supply to the water heating furnace can be stopped and the waste heat can be used for heating. The water in the heating chamber absorbs the heat from the second furnace. The heated water enters the engine liquid injection device 3 through the water supply pipe. At the same time, the temperature of the flue gas exiting from the bottom of the water boiler body is still relatively high, and it can also heat the air to hot air through a heat exchanger. The hot air enters the air inlet of the heating furnace to assist the combustion of fuel, further increasing the furnace temperature and achieving the purpose of energy conservation. Although the steam discharged from the exhaust outlet of the engine has a relatively low pressure but a relatively high temperature and a large amount of heat energy, it can also preheat the makeup water through a heat exchanger for system use, further improving the thermal efficiency.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Any equivalent replacement, modification or partial replacement of the present invention without departing from the spirit and scope of the present invention shall be covered by the scope of protection of the claims of the present invention.

Claims

1. An engine, characterized in that, It includes a crankshaft connecting rod mechanism rotatably arranged on a first mounting seat, a valve transmission group rotatably arranged on a second mounting seat, and a cylinder block. A heating chamber and a cylinder barrel communicating with the heating chamber are provided in the cylinder block. A liquid spraying device is installed in the heating chamber. The liquid spraying device is connected to a boiling water furnace through a water supply pipe provided with a water valve. The piston of the crankshaft connecting rod mechanism is hermetically and slidably assembled in the cylinder barrel. A valve assembly for controlling its communication with the outside is provided on the heating chamber. The valve assembly, the water valve, and the crankshaft connecting rod mechanism are respectively in transmission cooperation with the valve transmission group.

2. The engine according to claim 1, wherein A pressure relief valve for controlling its communication with the outside is provided on the heating chamber.

3. An engine according to claim 2, characterized in that, The liquid spraying device includes a plurality of nozzles, and the plurality of nozzles are spaced apart and arranged on the water supply pipe penetrating into the heating chamber and communicating with it.

4. An engine according to claim 2, characterized in that, The valve transmission group includes a camshaft rotatably arranged on the second mounting seat, a second sprocket assembled on the camshaft, a first cam and a second cam. The first sprocket of the crankshaft connecting rod mechanism is in transmission cooperation with the second sprocket through a chain. The second cam of the camshaft is in transmission cooperation with the push rod of the valve assembly. The first cam of the camshaft is in transmission cooperation with the water valve. The camshaft controls the steam exhaust of the heating chamber by rotating to drive the push rod to reciprocate linearly, and drives the water valve to open and close to control the liquid spraying of the liquid spraying device. The phase difference between the first cam and the second cam is 180 degrees.

5. An engine according to claim 4, characterized in that: The water valve is set as a push-type plunger valve.

6. An engine according to claim 5, characterized in that, A combustion chamber for heating the bottom wall of the heating chamber is further provided in the cylinder block below the heating chamber. A first grille for separating it into a first furnace and a first ash bin is provided in the combustion chamber. First heat conducting pipes are spaced apart on the bottom plate of the heating chamber. The closed ends of the first heat conducting pipes extend into the combustion chamber, and their open ends communicate with the heating chamber. The first heat conducting pipes are seamlessly connected to the bottom plate of the heating chamber. A first smoke outlet is opened on the rear side wall of the combustion chamber.

7. An engine according to claim 6, characterized in that, It further includes a boiling water furnace. A heating bin, a second furnace, and a second ash bin are sequentially arranged in the boiling water furnace from top to bottom. A second grille for separating the two is provided between the second furnace and the second ash bin. An inlet and an outlet are provided on the heating bin. The outlet is communicated with the liquid spraying device through a water supply pipe. The inlet is communicated with an external water supply device through a pipeline. Second heat conducting pipes are spaced apart on the bottom plate of the heating bin. The closed ends of the second heat conducting pipes extend into the second furnace, and their open ends communicate with the heating bin. The second heat conducting pipes are seamlessly connected to the bottom plate of the heating bin.

8. An engine according to claim 7, characterized in that, It further includes a starter, and the starter is coupled and driven with the crankshaft connecting rod mechanism.

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