CN212656896U - Single-cylinder single-stroke engine driving rotary range extender - Google Patents

Abstract

The utility model belongs to the technical field of new energy automobile technique and specifically relates to indicate a rotary-type journey ware that increases of single cylinder single stroke engine drive, it includes engine, drive mechanism and generator, the engine include the cylinder body, set up in the cylinder body both ends just are used for right the cylinder body air delivery's air intake assembly, set up in the cylinder body both ends just are used for right the cylinder body is carried the feed subassembly of fuel, sliding connection has the piston plate in the cylinder body, the piston plate has set firmly the output shaft, output shaft cavity is equipped with the inner chamber, the output shaft just is located inside first gas outlet and the second gas outlet of being provided with of cylinder body, the output shaft just is located the part outside the cylinder body and is provided with first waste gas mouth and second waste gas mouth, be provided with the switch spare that is used for sealing or opening first gas. The range extender is small in size, small in occupied space and high in energy conversion efficiency.

Description

Single-cylinder single-stroke engine driving rotary range extender

Technical Field

The utility model belongs to the technical field of new energy automobile technique and specifically relates to indicate a rotary-type journey ware that increases of single cylinder single stroke engine drive.

Background

The range extender generally refers to an electric vehicle component which can provide additional electric energy so as to increase the driving distance of the electric vehicle, and the range extender in the traditional sense refers to a combination of an engine and a generator. At present, the engine part of the existing range extender has larger volume, occupies space and has low energy conversion efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotary-type journey ware that increases of single cylinder single stroke engine drive has solved current journey ware engine part volume that increases great, occupation space, and is not high to the conversion efficiency of the energy.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a rotary range extender driven by a single-cylinder single-stroke engine comprises an engine, a transmission mechanism and a generator, the engine comprises a cylinder body, air inlet assemblies arranged at two ends of the cylinder body and used for conveying air to the cylinder body, and feeding assemblies arranged at two ends of the cylinder body and used for conveying fuel to the cylinder body, a piston plate is connected in the cylinder body in a sliding manner, an output shaft is fixedly arranged on the piston plate, two ends of the output shaft penetrate through the cylinder body and are connected with the cylinder body in a sliding manner, the output shaft is hollow and provided with an inner cavity, the output shaft is provided with a first air outlet and a second air outlet inside the cylinder body, the first air outlet and the second air outlet are positioned at two sides of the piston plate, the part of the output shaft, which is positioned outside the cylinder body, is provided with a first waste gas port and a second waste gas port, the output shaft is provided with a switch piece for closing or opening the first air outlet and the second air outlet; the transmission mechanisms are respectively arranged at two ends of the output shaft, and the generator is connected to the output shaft through the transmission mechanisms.

Further, the piston plate divides the cylinder body into a first combustion chamber and a second combustion chamber, the air inlet assembly comprises a first air inlet pipe and a second air inlet pipe which are arranged at two ends of the cylinder body respectively, and the feeding assembly comprises a first feeding pipe and a second feeding pipe which are arranged at two ends of the cylinder body respectively.

Furthermore, a first preheating chamber and a second preheating chamber are respectively arranged at two ends of the cylinder body, the first air outlet is communicated with the first preheating chamber, the second air outlet is communicated with the second preheating chamber, and two ends of the output shaft respectively penetrate out of the first preheating chamber and the second preheating chamber; the first air inlet pipe and the first feeding pipe are arranged in a first preheating chamber, one end, far away from the cylinder body, of the first preheating chamber is provided with a first air inlet nozzle and a first feeding nozzle, one end, far away from the cylinder body, of the first air inlet pipe is connected with the first air inlet nozzle, one end, far away from the cylinder body, of the first feeding pipe is connected with the first feeding nozzle, the second air inlet pipe and the second feeding pipe are arranged in a second preheating chamber, one end, far away from the cylinder body, of the second preheating chamber is provided with a second air inlet nozzle and a second feeding nozzle, one end, far away from the cylinder body, of the second air inlet pipe is connected with the second air inlet nozzle, and one end, far away from the cylinder body, of the second feeding pipe is connected.

Furthermore, a plurality of sliding grooves are uniformly formed in the outer wall of the output shaft in the circumferential direction, the first air outlet and the second air outlet are formed in each sliding groove, the switch piece comprises a sliding portion in sliding fit with the sliding groove, and a first pushing portion and a second pushing portion protruding out of the sliding grooves, and the first pushing portion and the second pushing portion are located on two sides of the piston plate respectively; the sliding part is provided with a first exhaust hole and a second exhaust hole, when the first pushing part is abutted to the piston plate, the second exhaust hole is communicated with a second air outlet, and the first air outlet is in a closed state; when the second pushing part is abutted to the piston plate, the first exhaust hole is communicated with the first air outlet, and the second air outlet is in a closed state.

Further, the inner walls at the two ends of the cylinder body are respectively provided with a first switch buffer block and a second switch buffer block, the first switch buffer block and the first pushing part are oppositely arranged and can be in butt fit with the first pushing part, and the second switch buffer block and the second pushing part are oppositely arranged and can be in butt fit with the second pushing part.

Further, the generator comprises a rotary generator, and the transmission mechanism comprises a transmission assembly for converting linear motion of the output shaft into rotary motion.

Further, the transmission assembly comprises a rotating gear used for being connected with the rotary type generator and a double-sided rack fixedly connected with the output shaft, the rotating gear is connected with a first gear and a second gear in a meshed mode, and the first gear and the second gear are respectively located on two sides of the rack on the upper face; the first gear is fixedly provided with a first intermittent gear which can be meshed and connected with the double-sided rack, the second gear is fixedly provided with a second intermittent gear which can be meshed and connected with the double-sided rack, and when the first intermittent gear is meshed and matched with the double-sided rack, the second intermittent gear is separated from the double-sided rack; when the second intermittent gear is meshed and matched with the double-sided rack, the first intermittent gear is in a disengaged state with the double-sided rack.

The utility model has the advantages that: first combustion chamber and second combustion chamber intermittent type nature work to make output shaft round trip movement, in order to turn into mechanical energy with the heat energy in the cylinder body, then drive the generator electricity generation through drive assembly, and then conveniently turn into the electric energy with mechanical energy, this increase journey ware engine portion volume is less, and occupation space is less, and is higher to the conversion efficiency of the energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic perspective view of an embodiment of the range extender;

FIG. 2 is an internal schematic view of the engine of FIG. 1;

FIG. 3 is a half sectional view of an embodiment of the present range extender;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic structural view of a switch member of an embodiment of the range extender;

fig. 6 is a schematic structural view of the transmission assembly in fig. 1.

Description of reference numerals: 100. an engine; 10. a cylinder body; 11. a first combustion chamber; 12. a second combustion chamber; 13. an output shaft; 131. a first air outlet; 132. a second air outlet; 133. a chute; 134. a first exhaust port; 135. a second exhaust port; 14. a piston plate; 15. a first elastic energy storage member; 16. a second elastic energy storage member; 17. a first switch buffer block; 18. a second switch buffer block; 21. a first intake pipe; 22. A second intake pipe; 31. a first feed pipe; 32. a second feed pipe; 40. a switch member; 41. a sliding part; 42. a first pushing part; 43. a first exhaust port; 44. a second pushing portion; 45. a second vent hole; 51. A first preheating chamber; 52. a second preheating chamber; 60. a transmission assembly; 61. a rotating gear; 62. a double-sided rack; 63. a first gear; 64. a first intermittent gear; 65. a second gear; 66. a second intermittent gear.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment mainly discloses a range extender, which includes an engine 100 and a generator (not shown), wherein the engine 100 and the generator are connected through a transmission assembly 60.

As shown in fig. 2, the engine 100 group includes a cylinder 10, an intake assembly, a supply assembly and an exhaust assembly, wherein a piston plate 14 is slidably connected in the cylinder 10, an output shaft 13 is fixedly arranged on the piston plate 14, two ends of the output shaft 13 penetrate through the cylinder 10 and are slidably connected with the cylinder 10, and an end of the output shaft 13 is in transmission connection with the generator; the air inlet assembly is connected to the cylinder 10 and is used for conveying air to the cylinder 10; the feeding assembly is connected to the cylinder 10 and is used for delivering fuel to the cylinder 10; the exhaust assembly is provided in the cylinder 10 and is used to discharge the exhaust gas burned in the cylinder 10. When the engine 100 works, the output shaft 13 can be driven to move back and forth, the output shaft 13 is connected with the generator, and a part of mechanical energy can be converted into electric energy through the generator to be stored, so that the range extender engine 100 is small in size, small in occupied space and high in energy conversion efficiency.

As shown in fig. 2 to 5, the piston plate 14 divides the cylinder 10 into a first combustion chamber 11 and a second combustion chamber 12, the output shaft 13 and the cylinder 10 are mechanically sealed, the output shaft 13 is in sliding fit with the cylinder 10, the air intake assembly includes a first air intake pipe 21 and a second air intake pipe 22 respectively disposed at two ends of the cylinder 10, the supply assembly includes a first supply pipe 31 and a second supply pipe 32 respectively disposed at two ends of the cylinder 10, and the exhaust assembly includes a first exhaust passage communicated with the first combustion chamber 11 and a second exhaust passage communicated with the second combustion chamber 12. In this embodiment, the air is a mixture of compressed air and a fuel additive. The fuel can be ethanol, methanol, hydrogen, natural gas, gasoline, diesel oil, acetylene, methane, combustible ice and the like, and hydrogen peroxide, sodium peroxide and other combustion aids. Spark plugs are provided in each of the first combustion chamber 11 and the second combustion chamber 12 for igniting the fuel.

As shown in fig. 3 and 4, the output shaft 13 is hollow and provided with an inner cavity, a first air outlet 131 and a second air outlet 132 are provided in the output shaft 13 and located inside the cylinder 10, the first air outlet 131 and the second air outlet 132 are located on two sides of the piston plate 14, a first exhaust port 134 and a second exhaust port 135 are provided in a portion of the output shaft 13 located outside the cylinder 10, the first air outlet 131, the inner cavity of the output shaft 13, and the first exhaust port 134 form the first exhaust passage, and the second air outlet 132, the inner cavity of the output shaft 13, and the second exhaust port 135 form the second exhaust passage; the exhaust assembly further includes an opening and closing member 40 for closing or opening the first and second air outlets 131 and 132. Specifically, through switch 40, can make the combustion chamber admit air, the gas outlet is in the closed condition when burning, and the gas outlet is in the open mode when exhausting, can guarantee that fuel fully burns on the one hand, and on the other hand can make things convenient for exhaust gas.

As shown in fig. 4, a sliding groove 133 is formed in an outer wall of the output shaft 13, the first air outlet 131 and the second air outlet 132 are located in the sliding groove 133, the switch 40 includes a sliding portion 41 in sliding fit with the sliding groove 133, and a first pushing portion 42 and a second pushing portion 44 protruding from the sliding groove 133, and the first pushing portion 42 and the second pushing portion 44 are respectively located on two sides of the piston plate 14; the sliding part 41 is provided with a first exhaust hole 43 and a second exhaust hole 45, and when the first pushing part 42 abuts against the piston; when the second pushing portion 44 abuts against the piston plate 14, the first air outlet hole 43 communicates with the first air outlet 131, and the second air outlet hole is closed. Specifically, first promotion portion 42 and second promotion portion 44 are parallel to each other and set up, and first promotion portion 42 is T type vertical connection with sliding part 41, and second promotion portion 44 is T type vertical connection with sliding part 41, and first exhaust hole 43 and second exhaust hole 45 are located between first promotion portion 42 and the second promotion portion 44, and spout 133 is rectangular form, and the both ends of spout 133 are provided with respectively and slide part 41 both ends grafting complex spacing groove. In this embodiment, in order to improve the exhaust efficiency of the first combustion chamber 11 and the second combustion chamber 12, four sliding grooves 133 are circumferentially disposed on the output shaft 13, the first air outlet 131 and the second air outlet 132 are disposed in the groove bottom of each sliding groove 133, when the connecting plate 14 slides in each sliding groove 133, the second exhaust hole 45 communicates with the second air outlet 132, and the first air outlet is sealed by the switch 40. When gas and fuel are introduced into the first combustion chamber 11, the first pushing portion 42 abuts against the piston plate 14, the sliding portion 41 closes the first air outlet hole, the first air outlet hole is in a closed state, the piston plate 14 moves towards the second combustion chamber 12, and the second air outlet 132 of the second combustion chamber 12 is communicated with the second exhaust hole 45 and is in an exhaust state; then the first combustion chamber 11 is ignited for combustion, the first combustion chamber 11 is pressed to increase the piston plate 14 to move further towards the second combustion chamber 12 until the second pushing part 44 abuts against the piston plate 14, at this time, the first air outlet 131 and the first exhaust hole 43 are communicated to be in an exhaust gas discharging state, the second combustion chamber 12 is ventilated and combusted, the piston plate 14 moves towards the first combustion chamber 11, the first combustion chamber 11 discharges exhaust gas, and the first combustion chamber 11 and the second combustion chamber 12 intermittently operate to enable the output shaft 13 to move back and forth to convert the heat energy in the cylinder 10 into mechanical energy. The switch member 40 can indirectly open and close the first air outlet 131 and the second air outlet 132 without electric control, and has a simple structure and low cost.

Referring to fig. 2, in order to avoid that the piston plate 14 pushes the switch member 40 to move too fast, the switch member 40 collides with the cylinder 10 and is damaged, the inner walls of the two ends of the cylinder 10 are respectively provided with a first switch buffer block 17 and a second switch buffer block 18, the first switch buffer block 17 is arranged opposite to the first pushing portion 42 and can be abutted and matched with the first pushing portion 42, and the second switch buffer block 18 is arranged opposite to the second pushing portion 44 and can be abutted and matched with the second pushing portion 44. The first switch buffer 17 and the second switch buffer 18 may be made of rubber in this embodiment, and may be made of a spring in other embodiments. And, first switch buffer block 17 and second switch buffer block 18 have the resilience effect, after piston plate 14 promoted second promotion portion 44 and hit second switch buffer block 18, when second combustion chamber 12 admits air, piston plate 14 moves towards first combustion chamber 11 direction, and second switch buffer block 18 can promote second promotion portion 44 and move along with piston plate 14, avoids inertia effect to make second gas outlet 132 be the open state, and first switch buffer block 17 is the same.

In the present embodiment, in order to further improve the resilience effect of the output shaft 13, a first elastic energy storage member 15 and a second elastic energy storage member 16 are respectively disposed at two ends of the output shaft 13, and the first elastic energy storage member 15 and the second elastic energy storage member 16 are used for resilience of the output shaft 13. The first and second elastic energy storing members 15, 16 may be springs.

As shown in fig. 2, in order to improve the thermal efficiency of the present invention and make full use of the heat energy, a first preheating chamber 51 and a second preheating chamber 52 are respectively disposed at two ends of the cylinder 10, the first air outlet is communicated with the first preheating chamber 51, the second air outlet is communicated with the second preheating chamber 52, and two ends of the output shaft 13 respectively penetrate through the first preheating chamber 51 and the second preheating chamber 52; the first air inlet pipe 21 and the first feeding pipe 31 are arranged in a first preheating chamber 51, a first air inlet nozzle and a first feeding nozzle are arranged at one end, far away from the cylinder body 10, of the first preheating chamber 51, the first air inlet nozzle is connected to one end, far away from the cylinder body 10, of the first air inlet pipe 21, the first feeding nozzle is connected to one end, far away from the cylinder body 10, of the first feeding pipe 31, the second air inlet pipe 22 and the second feeding pipe 32 are arranged in a second preheating chamber 52, a second air inlet nozzle and a second feeding nozzle are arranged at one end, far away from the cylinder body 10, of the second preheating chamber 52, the second air inlet nozzle is connected to one end, far away from the cylinder body 10, of the second air inlet pipe 22, and the second feeding nozzle is connected to one end, far away from the cylinder body 10, of the second. The first preheating chamber 51 and the second preheating chamber 52 are respectively provided with through holes (not shown) for exhausting waste gas, and the fuel and air can be preheated by the exhausted waste gas, so that the combustion efficiency of the fuel is improved, and the energy is saved. Specifically, in order to improve the preheating effect, the first inlet pipe 21 and the first feed pipe 31 are disposed in a spiral shape in the first preheating chamber 51, and the second inlet pipe 22 and the second feed pipe 32 are disposed in a spiral shape in the second preheating chamber 52.

As shown in fig. 1 and 6, the generator includes a rotary type generator (not shown), and the transmission mechanism includes a transmission assembly 60 for converting a linear motion of the output shaft 13 into a rotary motion. The transmission assembly 60 comprises a rotating gear 61 for connecting with the rotary generator and a double-sided rack 62 fixedly connected with the output shaft 13, the rotating gear 61 is connected with a first gear 63 and a second gear 65 in a meshing manner, and the first gear 63 and the second gear 65 are respectively positioned on two sides of the upper rack; the first gear 63 is fixedly provided with a first intermittent gear 64 which can be meshed with the double-sided rack 62, the second gear 65 is fixedly provided with a second intermittent gear 66 which can be meshed with the double-sided rack 62, and when the first intermittent gear 64 is meshed with the double-sided rack 62, the second intermittent gear 66 is separated from the double-sided rack 62; when the second intermittent gear 66 is meshed with the double-sided rack 62, the first intermittent gear 64 is disengaged from the double-sided rack 62. The transmission assembly 60 may be a linkage mechanism or other linkage mechanism capable of converting linear motion to circular motion.

Preferably, in other embodiments, the generator comprises a linear generator.

The working principle is as follows:

in the first stage, the first pushing part 42 abuts against the piston plate 14, the first air outlet 131 is in a closed state, and the second air outlet 132 of the second combustion chamber 12 is communicated with the second exhaust hole 45 to be in an exhaust state; when gas and fuel are introduced into the first combustion chamber 11, the first combustion chamber 11 is ignited for combustion, the piston plate 14 is increased towards the second combustion chamber 12 by the pressure intensity of the first combustion chamber 11, the volume of the second combustion chamber 12 is reduced, and high-temperature waste gas in the second combustion chamber 12 enters the inner cavity of the output shaft 13 and is introduced into the first preheating chamber 51 and the second preheating chamber 52; the second stage is performed until the second pushing portion 44 abuts the piston plate 14 and the second pushing portion 44 contacts the second switch buffer 18, at which time the first air outlet 131 and the first air outlet 43 are communicated.

In the second stage, after the second pushing part 44 contacts the second switch buffer block 18, the switch element 40 is pushed to the direction of the first combustion chamber 11, the first exhaust hole 43 on the switch element 40 and the first exhaust hole 131 on the output shaft 13 gradually form a conducting state, the high-temperature gas in the first combustion chamber 11 is gradually exhausted, the sliding part 41 of the switch element 40 gradually covers the second exhaust hole 45, the second exhaust hole 45 is gradually closed, at this time, the second elastic energy storage element 16 decelerates the output shaft 13, converts the mechanical energy of the output shaft into elastic potential energy, and the piston plate 14 continues to move towards the second switch buffer block 18. When the second exhaust hole 45 is completely closed, the first exhaust hole 43 is in a completely open state, and at this time, the high-temperature gas in the first combustion chamber 11 will be rapidly exhausted, and the high-temperature gas will enter the first preheating chamber 51 to heat the first inlet pipe 21 and the first feeding pipe 31 in the first preheating chamber 51; in the second combustion chamber 12, the air and the fuel heated by the high temperature are rapidly pressed into the second combustion chamber 12 and are rapidly and uniformly mixed due to the high temperature. The piston plate 14 continues to move towards the second switch buffer 18 until its speed is reduced to zero by the second elastic energy storing member 16, and a third phase is entered.

In the third stage, when the speed of the piston plate 14 is reduced to zero, the fuel and air are stopped being pressed into the second combustion chamber 12, the second air inlet pipe 22 and the second feed pipe 32 are closed, and then the second elastic energy storage element 16 pushes the piston plate 14 to move towards the first combustion chamber 11; at this time, the spark plug of the second combustion chamber 12 is ignited rapidly, the fuel in the second combustion chamber 12 is ignited, the gas expands, and the piston plate 14 is pushed rapidly toward the first combustion chamber 11, and during the movement, a small amount of residual high-temperature gas is discharged into the first preheating chamber 51. When the first push portion 42 of the switch member 40 contacts the first switch buffer 17, the fourth stage is entered.

In the fourth stage, after the first pushing part 42 contacts the first switch buffer block 17, the switch member 40 is pushed to the direction of the second combustion chamber 12, the second exhaust hole 45 on the switch member 40 and the second air outlet 132 on the output shaft 13 gradually enter a conducting state, the high-temperature gas in the second combustion chamber 12 is gradually exhausted, the sliding part 41 of the switch member 40 gradually covers the first air outlet 131, the first air outlet 131 is gradually closed, and at this time, the first elastic energy storage member 15 will decelerate the output shaft 13 and convert the mechanical energy of the output shaft 13 into elastic potential energy; the piston plate 14 continues to move towards the first switch buffer block 17, when the first air outlet 131 is completely closed, the second air outlet 132 is in a completely open state, at this time, the high-temperature gas in the second combustion chamber 12 will be rapidly discharged, and the high-temperature gas will enter the second preheating chamber, so as to heat the second air inlet pipe 22 and the second feeding pipe 32 in the second preheating chamber; in the first combustion chamber 11, the air and fuel heated by the high temperature are rapidly pressed into the first combustion chamber 11 and rapidly and uniformly mixed due to the high temperature; the piston plate 14 continues to move towards the second switch buffer block 18 until its speed is reduced to zero by the first elastic energy storage element 15; then, the fuel and air are stopped from being pressed in, and the first intake pipe 21 and the first feed pipe 31 are closed; then the piston plate 14 will move towards the second switch buffer block 18 because of the first elastic potential energy storage element, at this time, the electric spark plug of the first combustion chamber 11 ignites rapidly, the fuel in the first combustion chamber 11 burns and expands rapidly, and the piston plate 14 is pushed to move towards the second switch buffer block 18; the first phase is entered again.

In view of the above, it is desirable to provide,

the first combustion chamber 11 and the second combustion chamber 12 work intermittently, so that the output shaft 13 moves back and forth, the heat energy in the cylinder 10 is converted into mechanical energy, the transmission assembly 60 drives the generator to generate electricity, and the mechanical energy is conveniently converted into electric energy.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (7)

1. A single cylinder single stroke engine drive rotary range extender is characterized in that: the engine comprises a cylinder body, air inlet assemblies arranged at two ends of the cylinder body and used for conveying air to the cylinder body, and feeding assemblies arranged at two ends of the cylinder body and used for conveying fuel to the cylinder body, wherein a piston plate is connected in the cylinder body in a sliding manner, an output shaft is fixedly arranged on the piston plate, two ends of the output shaft penetrate through the cylinder body and are connected with the cylinder body in a sliding manner, an inner cavity is arranged in the hollow output shaft, a first air outlet and a second air outlet are formed in the output shaft and located in the cylinder body, the first air outlet and the second air outlet are located on two sides of the piston plate, a first waste gas port and a second waste gas port are formed in the part of the output shaft located outside the cylinder body, and a switch part used for closing or opening the first air outlet and the second air outlet is; the transmission mechanisms are respectively arranged at two ends of the output shaft, and the generator is connected to the output shaft through the transmission mechanisms.

2. A single cylinder, single stroke engine driven rotary range extender as recited in claim 1 wherein: piston plate is divided into first combustion chamber and second combustion chamber with the cylinder body, the subassembly that admits air including set up respectively in the first intake pipe and the second intake pipe at cylinder body both ends, the feed subassembly including set up respectively in the first feed pipe and the second feed pipe at cylinder body both ends.

3. A single cylinder, single stroke engine driven rotary range extender as claimed in claim 2 wherein: a first preheating chamber and a second preheating chamber are respectively arranged at two ends of the cylinder body, the first air outlet is communicated with the first preheating chamber, the second air outlet is communicated with the second preheating chamber, and two ends of the output shaft respectively penetrate out of the first preheating chamber and the second preheating chamber; the first air inlet pipe and the first feeding pipe are arranged in a first preheating chamber, one end, far away from the cylinder body, of the first preheating chamber is provided with a first air inlet nozzle and a first feeding nozzle, one end, far away from the cylinder body, of the first air inlet pipe is connected with the first air inlet nozzle, one end, far away from the cylinder body, of the first feeding pipe is connected with the first feeding nozzle, the second air inlet pipe and the second feeding pipe are arranged in a second preheating chamber, one end, far away from the cylinder body, of the second preheating chamber is provided with a second air inlet nozzle and a second feeding nozzle, one end, far away from the cylinder body, of the second air inlet pipe is connected with the second air inlet nozzle, and one end, far away from the cylinder body, of the second feeding pipe is connected.

4. A single cylinder, single stroke engine driven rotary range extender as recited in claim 1 wherein: the outer wall of the output shaft is uniformly provided with a plurality of sliding grooves in the circumferential direction, each sliding groove is internally provided with the first air outlet and the second air outlet, the switch piece comprises a sliding part in sliding fit with the sliding groove, and a first pushing part and a second pushing part which protrude from the sliding grooves, and the first pushing part and the second pushing part are respectively positioned on two sides of the piston plate; the sliding part is provided with a first exhaust hole and a second exhaust hole, when the first pushing part is abutted to the piston plate, the second exhaust hole is communicated with a second air outlet, and the first air outlet is in a closed state; when the second pushing part is abutted to the piston plate, the first exhaust hole is communicated with the first air outlet, and the second air outlet is in a closed state.

5. A single cylinder, single stroke engine driven rotary range extender as claimed in claim 4 wherein: the inner walls at the two ends of the cylinder body are respectively provided with a first switch buffer block and a second switch buffer block, the first switch buffer block is arranged opposite to the first pushing part and can be matched with the first pushing part in an abutting mode, and the second switch buffer block is arranged opposite to the second pushing part and can be matched with the second pushing part in an abutting mode.

6. A single cylinder, single stroke engine driven rotary range extender as claimed in any one of claims 1 to 5 wherein: the generator comprises a rotary generator, and the transmission mechanism comprises a transmission assembly for converting the linear motion of the output shaft into the rotary motion.

7. A single cylinder, single stroke engine driven rotary range extender as claimed in claim 6 wherein: the transmission assembly comprises a rotating gear connected with the rotary generator and a double-sided rack fixedly connected with the output shaft, the rotating gear is connected with a first gear and a second gear in a meshed manner, and the first gear and the second gear are respectively positioned on two sides of the rack on the upper surface; the first gear is fixedly provided with a first intermittent gear which can be meshed and connected with the double-sided rack, the second gear is fixedly provided with a second intermittent gear which can be meshed and connected with the double-sided rack, and when the first intermittent gear is meshed and matched with the double-sided rack, the second intermittent gear is separated from the double-sided rack; when the second intermittent gear is meshed and matched with the double-sided rack, the first intermittent gear is in a disengaged state with the double-sided rack.

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