JP2007298013A - Rotary engine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary engine capable of obtaining more favorable thermal efficiency. <P>SOLUTION: The rotary engine 1 is constituted by storing an approximately triangular rotor 20 inside a cocoon-shaped housing 10 having an inner peripheral face 10a with a trochoid curve. A suction pipe 50 and an exhaust pipe 60 are communicated and connected with the housing 10, and base end parts of the pipes 50, 60 are communicated and connected with each other and shielded from an outside space. On the inner peripheral face 10a of the housing 10, a cooling region 11 cooled by a cooling mechanism 13 and a heating region 12 heated by a heating mechanism 14 are formed. In each of three operation chambers 30 formed between the housing 10 and the rotor 20, gas sucked from the suction pipe 50 is cooled by the cooling region 11 and contracted, and then the gas is heated by the heating region 12 and expanded. Due to this gas contraction and expansion, rotating force is applied to the rotor 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention accommodates a rotor in a housing and divides the space between the outer peripheral surface of the rotor and the inner peripheral surface of the housing into a plurality of working chambers, and each of the plurality of working chambers according to the planetary rotational movement of the rotor. The present invention relates to a rotary engine that performs the steps of intake, contraction, expansion, and exhaust while moving along the inner peripheral surface of the housing.

  Conventionally, a substantially triangular rice pad-shaped rotor is accommodated in a bowl-shaped housing having an inner peripheral surface of a trochoid curve, and the space between the outer peripheral surface of the rotor and the inner peripheral surface of the housing is divided into three working chambers. At the same time, each of the three working chambers moves along the inner peripheral surface of the housing in accordance with the planetary rotational movement of the rotor, so that the rotation of the rotor is performed by sequentially performing the intake, compression, expansion, and exhaust processes. A rotary engine extracted as an output has been put into practical use (see, for example, Patent Documents 1 and 2).

  The rotary engine takes out the rotary motion of the rotor as an output as it is, so it can obtain a high output while being compact compared to a reciprocating engine that converts the reciprocating motion of the piston into rotary motion, and also has less noise and vibration Has the advantage.

JP 2004-116497 A JP 2004-245093 A

  However, the rotary engine has a drawback that it is difficult to increase the airtightness of the working chamber as compared with a reciprocating engine using a metal piston and cylinder, and therefore, a sufficient compression ratio cannot be obtained. . Further, the shape of the working chamber formed by the bowl-shaped housing and the rice ball type rotor is disadvantageous in terms of combustion efficiency, and there is a problem that the practical energy efficiency is low.

  This invention is made | formed in view of the said subject, and it aims at providing the rotary engine from which more favorable thermal efficiency is obtained.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a rotor is accommodated in a housing and a space between the outer peripheral surface of the rotor and the inner peripheral surface of the housing is divided into a plurality of working chambers. In a rotary engine that performs each process of intake, contraction, expansion, and exhaust while each of the plurality of working chambers moves along the inner peripheral surface of the housing in accordance with the planetary rotational movement, the tip portion communicates with the housing An intake pipe that supplies gas to the working chamber when one of the plurality of working chambers performs intake, and a distal end portion thereof are connected to the housing, and one of the plurality of working chambers exhausts air. An exhaust pipe for discharging gas from the working chamber when performing, a cooling means for cooling a cooling region which is a partial section of the inner peripheral surface of the housing, and the cooling of the inner peripheral surface of the housing And a heating means for heating the heating area is different from some sections from the region.

  According to a second aspect of the present invention, in the rotary engine according to the first aspect of the invention, the cooling is applied to the inner peripheral surface of the housing that is in contact with the working chamber when any of the plurality of working chambers performs intake and contraction. A region is formed, and the heating region is formed on the inner peripheral surface of the housing that contacts the working chamber when any of the plurality of working chambers expands and exhausts.

  According to a third aspect of the present invention, in the rotary engine according to the second aspect of the present invention, an exhaust valve that closes the exhaust pipe when any of the plurality of working chambers expands, and a plurality of the working chambers. An intake valve that closes the intake pipe when any of them contracts.

  According to a fourth aspect of the present invention, in the rotary engine according to the second aspect of the present invention, the rotary engine according to the second aspect further includes droplet supply means for spraying droplets on the working chamber immediately before any of the plurality of working chambers expands. .

  According to a fifth aspect of the present invention, in the rotary engine according to any one of the first to fourth aspects of the present invention, the base end of the intake pipe and the base end of the exhaust pipe are connected in communication. The space in the housing is blocked from the external space.

  According to the first aspect of the present invention, since the cooling region and the heating region are formed on the inner peripheral surface of the housing that accommodates the rotor, each of the plurality of working chambers is arranged inside the housing along with the planetary rotational movement of the rotor. When moving along the circumferential surface, the gas in the working chamber repeats thermal expansion and contraction, and as a result, the rotational force is given to the rotor only by the expansion and contraction of the gas regardless of the explosion of the fuel gas. Thermal efficiency can be obtained.

  According to the invention of claim 2, when any one of the plurality of working chambers performs intake and contraction, a cooling region is formed on the inner peripheral surface of the housing that is in contact with the working chamber, and any one of the plurality of working chambers is formed. Since the heating region is formed on the inner peripheral surface of the housing that is in contact with the working chamber when the working chamber is expanded and exhausted, the gas in the working chamber can be smoothly expanded and contracted thermally.

  According to the invention of claim 3, the exhaust valve that closes the exhaust pipe when any of the plurality of working chambers expands and the intake pipe that closes when any of the plurality of working chambers contracts Therefore, it is possible to effectively apply a force due to gas expansion and contraction in the working chamber to the rotor.

  Further, according to the invention of claim 4, since the droplet supply means for spraying droplets on the working chamber immediately before any of the plurality of working chambers expands, the droplets are heated by the heating region. A strong rotational force can be applied to the rotor by rapid volume expansion when it becomes steam.

  According to the invention of claim 5, since the space in the housing is shut off from the external space by connecting the base end portion of the intake pipe and the base end portion of the exhaust pipe, after being heated and expanded, The relatively high-temperature gas that has flowed into the exhaust pipe is sucked into the working chamber immediately before the transition to the contraction process, so that the contraction effect can be further improved and the thermal efficiency can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<1. First Embodiment>
FIG. 1 is a diagram showing a main configuration of a rotary engine according to the present invention. The rotary engine 1 is configured by accommodating a substantially triangular rice pad-shaped rotor 20 in a bowl-shaped housing 10 having an inner peripheral surface 10a of a trochoid curve. The space surrounded by the trochoid curve on the inner peripheral surface 10a is sandwiched from the front and back sides of the drawing by a side housing (not shown) and closed at both ends. The rotor 20 has a substantially triangular outer shape formed by a three-leaf inner envelope inscribed in the inner peripheral surface 10 a of the housing 10. That is, the outer peripheral surface of the rotor 20 is composed of three peripheral surfaces 21, and each peripheral surface 21 is slightly curved outward. The space between the outer peripheral surface of the rotor 20 and the inner peripheral surface 10a of the housing 10 is divided into three working chambers 30, 30, and a space surrounded by each of the three peripheral surfaces 21 and the inner peripheral surface 10a. One working chamber 30 is provided.

  The rotor 20 is supported so as to perform planetary rotation, that is, rotation and revolution, in the clockwise direction of the drawing with respect to the output shaft 40. More specifically, the rotor 20 is an eccentric wheel of the output shaft 40 in a state where each of three seal portions (apex seals) disposed on the outer peripheral top portion of a substantially triangular shape is in contact with the inner peripheral surface 10a of the housing 10. Around the output shaft 40 while rotating around. An internal gear is formed inside the rotor 20, and the planetary rotational movement of the rotor 20 is transmitted to the output shaft 40 through meshing of the internal gear and the external gear.

  Each of the three working chambers 30, 30, 30 moves in the clockwise direction in the drawing along the inner peripheral surface 10 a of the housing 10 with the planetary rotation of the rotor 20. Each working chamber 30 performs each process of intake, contraction, expansion, and exhaust while making a round along the inner peripheral surface 10 a of the housing 10, and the rotational force of the rotor 20 generated thereby is transmitted to the output shaft 40. . That is, while the rotor 20 makes one revolution, three sets of a series of steps including intake, contraction, expansion, and exhaust proceed, and the resulting rotational movement of the rotor 20 is extracted as the rotation of the output shaft 40.

  An intake port 51 is formed on one side (the left side in the drawing in the present embodiment) of the housing 10 that is separated by the long axis of the trochoid on the traveling direction side (upper side in the drawing) of the rotor 20 from the short axis of the trochoid. An exhaust port 61 is formed on the return direction side (lower side in the drawing) of the rotor 20 with respect to the short axis. A front end portion of the intake pipe 50 is connected to the intake port 51 of the housing 10, and a front end portion of the exhaust pipe 60 is connected to the exhaust port 61. The proximal ends of the intake pipe 50 and the exhaust pipe 60 merge and are connected to the manifold 70 in communication. A piston 75 is slidably disposed at the end of the manifold 70. Thus, in the rotary engine 1 of the present embodiment, the space surrounded by the inner peripheral surface 10a of the housing 10 (more precisely, the space including the inside of the intake pipe 50, the exhaust pipe 60, and the manifold 70) is shielded from the external atmosphere. It is a sealed space. However, since the piston 75 moves slidably, the volume of the space is variable. A predetermined working gas (argon in the present embodiment) is sealed in a sealed space including a space surrounded by the inner peripheral surface 10a.

  Further, the housing 10 is made of metal (in the present embodiment, made of an aluminum alloy), and a partial section of the inner peripheral surface 10a is defined as the cooling area 11, and another partial section different from the cooling area 11 is formed. It is defined as a heating area 12. As shown in FIG. 1, the cooling region 11 is formed on a part of the inner peripheral surface 10 a of the housing 10 on the upper side of the drawing from the short axis of the trochoid starting from the intake port 51. On the other hand, the heating region 12 is formed with an exhaust port 61 as an end point in a part of the inner peripheral surface 10a of the housing 10 below the trochoidal short axis in the drawing.

  A cooling mechanism 13 is attached to the cooling area 11, and the cooling area 11 is cooled to near room temperature by the cooling mechanism 13. As a method for cooling the cooling region 11, various known techniques can be used. For example, a number of cooling pipes are provided in the cooling region 11, and the cooling mechanism 13 circulates cooling water through these cooling pipes. It ’s fine. In addition, a Peltier element may be disposed in the cooling region 11 and the cooling region 11 may be cooled by the cooling mechanism 13 energizing the Peltier element. Furthermore, the cooling mechanism 13 may be a heat pump, and the heat absorption part (evaporator) of the heat pump may be disposed in the cooling region 11.

  A heating mechanism 14 is attached to the heating region 12, and the heating region 12 can be heated by the heating mechanism 14. In the first embodiment, the heating mechanism 14 heats the heating region 12 to 100 ° C. or higher. Various known techniques can be used as a method for heating the heating region 12. For example, a number of heating pipes are provided in the heating region 12, and the heating mechanism 14 supplies superheated steam to the heating pipes. It ’s fine. Alternatively, a resistance heating type heater may be disposed in the heating region 12, and the heating mechanism 14 may supply power to the heater to heat the heating region 12. Furthermore, the heating mechanism 14 may be a heat pump, and the heat radiating part (condenser) of the heat pump may be disposed in the heating region 12. In this case, the cooling mechanism 13 and the heating mechanism 14 may be a common heat pump.

  An intake valve 55 that shuts off or opens the inside of the intake pipe 50 is provided in the vicinity of the intake port 51, and an exhaust that shuts off or opens the inside of the exhaust pipe 60 in the vicinity of the exhaust port 61. A valve 65 is provided. The intake valve 55 and the exhaust valve 65 are connected to the output shaft 40 via a link mechanism (not shown), and the intake pipe according to the rotation angle of the output shaft 40 (that is, according to the rotational position of the rotor 20). 50 and the exhaust pipe 60 are configured to open and close.

  Next, the operation of the rotary engine 1 according to the first embodiment having the above-described configuration will be described with reference to FIGS. 3 to 9 show states in which the rotor 20 is eccentrically rotated clockwise from the position shown in FIG. 2 little by little. 2 to 9, for convenience of explanation, the three working chambers 30, 30, and 30 are referred to as working chambers 30a, 30b, and 30c, respectively.

  First, in the state of FIG. 2, with the rotational movement of the rotor 20, gas is supplied to the working chamber 30 a from the intake pipe 50 and intake is performed, and gas is discharged from the working chamber 30 c to the exhaust pipe 60. Exhaust is performed. The base end of the intake pipe 50 and the base end of the exhaust pipe 60 are connected to the manifold 70, and the gas supplied from the intake pipe 50 to the working chamber 30a is discharged from the working chamber 30c immediately after heating. It is a hot gas. The working chamber 30b at this stage is a transition process from the contraction process to the expansion stroke.

  When the rotor 20 rotates slightly and shifts to the state shown in FIG. 3, in the working chamber 30a, one side end (the top of the rotor 20) exceeds the intake port 51, and a sealed space is formed. 10 of the inner peripheral surface 10a is in contact with the cooling region 11. Thereby, the gas inside the working chamber 30a is cooled and contracted, and the working chamber 30a gives the rotor 20 a rotational force accompanying the gas contraction. On the other hand, a part of the working chamber 30b that has shifted to the expansion stroke starts to contact the heating region 12 in the inner peripheral surface 10a. Thereby, the gas inside the working chamber 30b is heated and starts to expand, and the rotor 20 is given a rotational force accompanying the gas expansion. In the working chamber 30c, gas can freely enter and exit through the intake pipe 50 and the exhaust pipe 60, and does not directly contribute to the rotation of the rotor 20.

  In the process in which the rotor 20 further rotates and sequentially shifts to the state shown in FIGS. 4 to 6, the working chamber 30 a continues to contract by being cooled in contact with the cooling region 11, while the working chamber 30 b is moved to the heating region 12. It continues to expand when heated in contact. The gas contraction of the working chamber 30a and the gas expansion of the working chamber 30b cooperate to give the rotor 20 a rotational force in the clockwise direction. However, as the state shown in FIG. 3 is shifted to the state shown in FIG. 6, the area where the working chamber 30 a contacts the cooling region 11 decreases, and conversely, the area where the working chamber 30 b contacts the heating region 12 increases. Therefore, the main force for rotating the rotor 20 is gradually shifted from the gas contraction of the working chamber 30a to the gas expansion of the working chamber 30b. The working chamber 30c does not directly contribute to the rotation of the rotor 20 because the gas can freely enter and exit.

  Next, when the rotor 20 further rotates and shifts to the state shown in FIG. 7, that is, when the advancing side end of the working chamber 30 b reaches the exhaust port 61 (strictly before reaching the exhaust port 61), the exhaust valve 65. Closes the exhaust pipe 60. As a result, the inside of the working chamber 30b is sealed while the traveling side end passes through the exhaust port 61, and the working gas inside the working chamber 30b is prevented from leaking from the exhaust pipe 60. Force due to gas expansion in the chamber 30b can be effectively applied to the rotor 20. On the other hand, even at this stage, part of the working chamber 30a is in contact with the cooling region 11 and gas contraction continues, but the contribution ratio of the rotor 20 to the rotational force is considerably lower than that of the working chamber 30b. Yes.

  Next, when the rotor 20 further rotates and shifts to the state shown in FIG. 8, that is, when the advancing side end of the working chamber 30 b exceeds the exhaust port 61, the intake valve 55 closes the intake pipe 50. Further, at this stage, the exhaust valve 65 still closes the exhaust pipe 60. For this reason, the working chamber 30b continues to apply the rotational force to the rotor 20 due to gas expansion in the internal space. Further, at this stage, the area where the working chamber 30c is in contact with the cooling region 11 increases and gas contraction occurs in the internal space. However, since the intake pipe 50 is closed by the intake valve 55, the intake pipe 50 is moved to the working chamber 30c. There is no gas inflow. Therefore, the working chamber 30c gives the rotor 20 the rotational force accompanying the gas contraction of the internal space. On the other hand, in the working chamber 30a, the gas contraction proceeds until the volume becomes close to the minimum, and the force accompanying the further gas contraction hardly occurs.

  Subsequently, when the rotor 20 further rotates and shifts to the state shown in FIG. 9, that is, when the advancing side end of the working chamber 30b reaches the vicinity of the middle between the exhaust port 61 and the intake port 51, the exhaust valve 65 is exhausted. The tube 60 is opened. On the other hand, the intake valve 55 still closes the intake pipe 50. For this reason, the working chamber 30c continues to apply the rotational force to the rotor 20 due to gas contraction of the internal space. Further, the heated gas inside the working chamber 30 b flows out from the exhaust pipe 60, and the working chamber 30 b does not contribute to the rotation of the rotor 20. At this stage, the volume of the working chamber 30a is minimized.

  Subsequently, when the rotor 20 rotates a little, the intake valve 55 opens the intake pipe 50 and returns to the state shown in FIG. Thereafter, the operation chambers 30a, 30b, and 30c are replaced with the positions of the operation chambers 30b, 30c, and 30a, respectively, and the operation similar to that shown in FIGS. 2 to 9 is repeated, whereby the rotor 20 continues to rotate.

  As described above, in the rotary engine 1 according to the first embodiment, when any one of the three working chambers 30, 30, 30 performs intake and contraction, the inner circumferential surface 10 a of the housing 10 that the working chamber 30 contacts with. A cooling region 11 is formed, and a heating region 12 is formed on the inner peripheral surface 10a of the housing 10 with which the working chamber 30 comes into contact when any of the three working chambers 30, 30, 30 expands and exhausts. Then, the gas in the working chamber 30 in contact with the heating region 12 expands and the gas in the working chamber 30 in contact with the cooling region 11 contracts, so that a rotational force is applied to the rotor 20, which rotates the output shaft 40. As taken out.

  A conventional rotary engine is an internal combustion engine that expands a gas by compressing and exploding a mixed gas of fuel and air sucked into a working chamber. However, the rotary engine 1 according to the present invention generates heat from the outside of the engine. It is an external combustion engine that gives it a cooling function. The rotary engine 1 according to the present invention does not expand gas by an explosion like an internal combustion engine, and rotates the rotor 20 by gas contraction by the cooling region 11 and gas expansion by the heating region 12, so that the gas smoothly In principle, the thermal efficiency is very high.

  The rotary engine 1 is a quiet engine with almost no noise because it does not accompany the explosion of the mixed gas. Further, the rotary engine 1 can be said to be a clean engine because it does not generate harmful nitrogen oxides that are generated when the fuel gas mixture is exploded in an airtight chamber. Furthermore, in the rotary engine 1 according to the present invention, since a temperature difference may be generated between the cooling region 11 and the heating region 12, a variety of heat sources other than those described above are used as the heating mechanism 14. be able to.

  In the rotary engine 1 of the first embodiment, the exhaust pipe 60 is closed by the exhaust valve 65 when any of the three working chambers 30, 30, 30 expands, and the three working chambers 30, 30 are used. , 30 closes the intake pipe 50 by the intake valve 55 when contracting, the force due to gas expansion and contraction in the working chamber 30 can be effectively applied to the rotor 20. .

  Furthermore, in the rotary engine 1 of the first embodiment, the base end portion of the intake pipe 50 and the base end portion of the exhaust pipe 60 are connected to the manifold 70 so that the space in the housing 10 is blocked from the external space. Therefore, the relatively high-temperature gas flowing into the exhaust pipe 60 after being heated by the heating region 12 is sucked into the working chamber 30 immediately before the transition to the contraction process, thereby further improving the contraction effect and improving the thermal efficiency. Can be made. In addition, when moving from the contraction step to the expansion stroke, the gas sufficiently cooled in one working chamber 30 is heated in contact with the heating region 12 as it is, and a high expansion effect is obtained to increase the thermal efficiency. Can be improved.

<2. Second Embodiment>
Next, a second embodiment of the present invention will be described. FIG. 10 is a diagram illustrating a main configuration of the rotary engine according to the second embodiment. The rotary engine 2 of the second embodiment is different from the rotary engine 1 of the first embodiment in that a water droplet sprayer 70 is provided in the housing 10. The remaining points of the rotary engine 2 are the same as those of the rotary engine 1 of the first embodiment, and the same members as those in FIG.

  The water droplet sprayer 70 is installed at a position different from the cooling region 11 and the heating region 12 of the housing 10. More precisely, a water droplet sprayer 70 is provided slightly on the return direction side of the rotor 20 from the heating region 12, and water droplets can be sprayed into the space in the housing 10. In addition, as the water droplet sprayer 70, what is necessary is just to inject a water droplet in mist form, and a well-known spray nozzle etc. can be used.

  In the second embodiment, the intake pipe 50 and the exhaust pipe 60 are provided as in the first embodiment, but the base ends of the intake pipe 50 and the exhaust pipe 60 are not connected to each other. , Open to the outside space. Therefore, the working chamber 30 draws air from the intake pipe 50 and exhausts it from the exhaust pipe 60 to the atmosphere. Moreover, the heating area | region 12 of 2nd Embodiment is heated by about several hundred degreeC. In the second embodiment, the intake valve 55 and the exhaust valve 65 of the first embodiment are not provided.

  The operation of the rotary engine 2 of the second embodiment will be described with reference to FIGS. 11 to 13, as in the first embodiment, for convenience of explanation, the three working chambers 30, 30, and 30 are referred to as working chambers 30a, 30b, and 30c, respectively.

  In the working chamber 30a, air is supplied from the intake pipe 50 in the state shown in FIG. 11, and intake is performed. Thereafter, as shown in FIGS. 12 and 13, the gas contraction due to cooling by the cooling region 11 occurs. proceed. This operation is almost the same as that of the first embodiment, but unlike the first embodiment, air at normal temperature is sucked in, so the rotational force applied to the rotor 20 by the gas contraction of the working chamber 30a is the first embodiment. Smaller than the form. Further, in the working chamber 30c, the exhaust stroke in FIG. 11 is shifted to the intake stroke in FIGS. 12 and 13 and does not directly contribute to the rotation of the rotor 20.

  On the other hand, in the working chamber 30b, as shown in FIG. 11, water droplets are sprayed from the water droplet sprayer 70 immediately before shifting to the expansion stroke. In the expansion stroke, the internal space of the working chamber 30b comes into contact with the heating region 12, and the water droplets supplied from the water droplet sprayer 70 are evaporated to become water vapor as shown in FIG. As a result, rapid volume expansion occurs in the working chamber 30b, and a strong rotational force is applied to the rotor 20 mainly by the pressure of water vapor. Thereafter, when the state shifts to the state shown in FIG. 13, the working gas containing water vapor is exhausted from the working chamber 30 b to the atmosphere through the exhaust pipe 60.

  Thereafter, the operation chambers 30a, 30b, and 30c are replaced with the positions of the operation chambers 30b, 30c, and 30a, respectively, and the same operation as shown in FIGS. 11 to 13 is repeated, so that the rotor 20 continues to rotate. .

  In the rotary engine 2 of the second embodiment, water droplets are sprayed from the water droplet sprayer 70 to the working chamber 30 immediately before any of the working chambers 30, 30, 30 expands, and the water droplets are heated by the heating region 12. Thus, a rotational force is applied to the rotor 20 by rapid volume expansion when it becomes water vapor. Since the volume of water is significantly expanded by changing from water droplets (liquid phase) to water vapor (gas phase), in the rotary engine 2 of the second embodiment, the rotor 20 has a powerful rotation by volume expansion accompanying the phase change of water. Can give power. Further, in the rotary engine 2, exhaust is discharged from the exhaust pipe 60 into the atmosphere. However, since the exhaust only contains water vapor, there is no possibility of polluting the atmosphere.

<3. Modification>
Although the embodiment of the present invention has been described above, the present invention can be modified in various ways other than those described above without departing from the spirit of the present invention. For example, you may comprise the rotary engine 2 provided with the water droplet sprayer 70 of 2nd Embodiment as shown in FIG. In the configuration example of FIG. 14, the proximal end portions of the intake pipe 50 and the exhaust pipe 60 are connected in communication as in the first embodiment, and they join together and are connected to the manifold 70. A piston 75 is slidably disposed at the end of the manifold 70. Even if comprised in this way, a powerful rotational force can be given to the rotor 20 by rapid volume expansion when changing from a water drop to water vapor | steam similarly to 2nd Embodiment.

  In the second embodiment, water droplets are sprayed on the working chamber 30 immediately before any of the working chambers 30, 30, and 30 expands. However, the present invention is not limited to water droplets. Other droplets such as alcohol may be sprayed and the volume expansion when the droplets are heated by the heating region 12 to become vapor may be used. The type of droplets to be sprayed can be appropriately determined according to the temperature of the heating region 12 or the like.

  Moreover, you may make it provide the rotary valve 2 of 2nd Embodiment the same intake valve 55 and exhaust valve 65 as 1st Embodiment.

It is a figure which shows the principal part structure of the rotary engine which concerns on this invention. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure which shows the principal part structure of the rotary engine of 2nd Embodiment. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure explaining operation | movement of the rotary engine of FIG. It is a figure which shows the other structural example of the rotary engine of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Rotary engine 10 Housing 10a Inner peripheral surface 11 Cooling area 12 Heating area 13 Cooling mechanism 14 Heating mechanism 20 Rotor 30, 30a, 30b, 30c Working chamber 50 Intake pipe 55 Intake valve 60 Exhaust pipe 65 Exhaust valve 70 Water droplet sprayer

Claims (5)

The rotor is accommodated in the housing, and the space between the outer peripheral surface of the rotor and the inner peripheral surface of the housing is divided into a plurality of working chambers, and each of the plurality of working chambers is caused by the planetary rotational movement of the rotor. A rotary engine that performs intake, contraction, expansion, and exhaust processes while moving along the inner peripheral surface of the housing,
An intake pipe that is connected in communication with the housing, and supplies gas to the working chamber when any of the plurality of working chambers performs intake;
An exhaust pipe that is connected in communication with the housing and exhausts gas from the working chamber when any of the plurality of working chambers exhausts;
Cooling means for cooling a cooling region that is a partial section of the inner peripheral surface of the housing;
Heating means for heating a heating region which is a partial section different from the cooling region on the inner peripheral surface of the housing;
A rotary engine comprising: The rotary engine according to claim 1,
When any one of the plurality of working chambers performs intake and contraction, the cooling region is formed on the inner peripheral surface of the housing that is in contact with the working chamber, and when any of the plurality of working chambers performs expansion and exhaust The rotary engine is characterized in that the heating region is formed on an inner peripheral surface of the housing that is in contact with the working chamber. The rotary engine according to claim 2,
An exhaust valve that closes the exhaust pipe when any of the plurality of working chambers expands;
An intake valve that closes the intake pipe when any of the plurality of working chambers contracts;
A rotary engine characterized by further comprising: The rotary engine according to claim 2,
The rotary engine further comprising droplet supply means for spraying droplets on the working chamber immediately before any of the plurality of working chambers expands. The rotary engine according to any one of claims 1 to 4,
A rotary engine characterized in that a space in the housing is blocked from an external space by connecting a proximal end portion of the intake pipe and a proximal end portion of the exhaust pipe.

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