WO2011143795A1

WO2011143795A1 - Hot gas engine

Info

Publication number: WO2011143795A1
Application number: PCT/CN2010/000730
Authority: WO
Inventors: 杨永顺
Original assignee: Yang Yongshun
Priority date: 2010-05-21
Filing date: 2010-05-21
Publication date: 2011-11-24

Abstract

A hot gas engine includes four groups of cylinder assemblies and a transmission output mechanism. The transmission output mechanism includes rocker-arm shaft brackets (100a, 100b), a crankshaft bracket (200), a first rocker-arm assembly (4), a second rocker-arm assembly (5), and a crankshaft (300) rotatably installed on the crankshaft bracket (200). Two crankshaft connecting rods (301a, 301b) same in length are hinged on the crankshaft (300). The first rocker-arm assembly (4) includes a first straight shaft (41), a first long arm (43) and a first short arm (44). The second rocker-arm assembly (5) includes a second straight shaft (51), a second long arm (53) and a second short arm (54). The first long arm (43) and the second long arm (53) each has two hinged parts thereon. The first short arm (44) and the second short arm (54) are hinged with two crankshaft connecting rods (301a, 301b). When the first rocker-arm assembly (4) and the second rocker-arm assembly (5) are mounted on the rocker-arm shaft brackets (100a,100b), two straight shafts (41,51) are located on the same central axis, the hinged parts of first rocker-arm assembly (4) and second rocker-arm assembly (5) are respectively situated on four corners of a square and lie in the same plane. The hot gas engine is simple in structure, low in manufacturing cost and makes less noise in operation.

Description

Hot air machine

The invention relates to a hot air machine. Background technique

A hot air machine is a closed cycle reciprocating engine that externally heats the gas to periodically contract and expand at different temperatures.

As shown in Fig. 1, the conventional first four-cylinder double-piston coaxial ventilating type heat engine includes four sets of cylinder assemblies and a transmission output mechanism for transmitting and outputting power.

The four sets of cylinder assemblies are identical in construction and are numbered clockwise or counterclockwise as the first set of cylinder assemblies A, the second set of cylinder assemblies B, the third set of cylinder assemblies C, and the fourth set of cylinder assemblies D. Four of the four sets of cylinder assemblies are arranged at the four vertices of the square.

The first group of cylinder assemblies A includes an upper end opening, a lower end sealed cylinder, and a heater 17A, a regenerator 18A and a cooler 19A that are sequentially connected. A seal partition 11 A is fixed in the middle of the cylinder, and the seal partition 11 A divides the cylinder into two parts, that is, a gas exchange cylinder 12A and a work cylinder 13A. The ventilation cylinder 14A is provided with a ventilation piston 14A. There is no gap or a small gap between the ventilation piston 14A and the cylinder wall of the ventilation cylinder 12A, and it is only used for gas lubrication. The working cylinder 13A is provided with a working piston 15A, the working piston 15A is hinged with a connecting rod 16A, and there is no gap between the working piston 15A and the working cylinder 13A cylinder wall, and the cavity between the working piston 15A and the sealing partition 11A is a working cylinder. The cavity 131A is sealed. A piston rod connects the gas exchange piston 14A and the work piston 15A through the seal hole of the seal partition 11A. The heater 17A may be directly disposed at a lower end portion outside the ventilating cylinder 12A, or may be communicated to a lower end portion of the outside of the ventilating cylinder 12A via a heating pipe 20A for heating the lower end portion of the ventilating cylinder 12A. The hot end 122A is formed, and the hot end 122A is kept in a high temperature state; the cooler 19A may be directly disposed at the upper end portion of the ventilating cylinder 12A, or may communicate with the upper end portion of the ventilating cylinder 12A through the cooling line 21A. The cooler 19A is for cooling the upper end portion of the ventilating cylinder 12A to form the cold end 121A, and keeping the cold end 121A straight to a low temperature state. usually In the case, the larger the temperature difference between the hot end 122A and the cold end 121A of the ventilating cylinder 12A, the better. The structure of the other three sets of cylinder assemblies is the same as that of the first group of cylinder assemblies. For the sake of narration, the parts of the different sets of cylinders are indicated by different suffix letters, and the suffix letter B of the parts of the second set of cylinder assemblies, The suffix letter of the part in the third set of cylinder components (the suffix letter D of the part in the fourth set of cylinder components).

The cold end 121A of the ventilating cylinder 12A of the first group of cylinder assemblies A and the lower end portion of the working cylinder sealing chamber 131B of the second group of cylinder assemblies B are communicated by the first communication line 10A; the ventilating of the second group of cylinder assemblies B The cold end 121B of the cylinder 12B and the lower end portion of the working cylinder sealing chamber 131C in the third group cylinder assembly C are communicated through the second communication line 10B; the cold end 121C and the fourth end of the ventilation cylinder 12C of the third group cylinder assembly C The lower end portion of the working cylinder sealing chamber 131D in the group cylinder assembly D is communicated through the third communication line 10C; the cold end 121D of the ventilation cylinder 12D of the fourth group of power cycle machine D and the working cylinder in the first group of cylinder assembly A The lower end portion of the sealed chamber 131A communicates through the fourth communication line 10D. The phase of motion between the two sets of pistons of two adjacent cylinder assemblies differs by 90 degrees, and the phase of motion between the two sets of pistons of the two sets of cylinders in the diagonal is 180 degrees out of phase.

The conventional four-cylinder double-piston coaxial ventilating hot air machine is made according to the principle of gas thermal expansion and contraction. After the four sets of cylinder assemblies are connected, the gas cylinders under the power pistons of each group of cylinder assemblies and the gas cylinders of adjacent cylinder assemblies connected thereto are closed with a certain amount of gas. The movement between the cold and hot ends of the gas cylinder causes the overall temperature of the gas to change. When the gas exchange piston is located at the middle position of the gas exchange cylinder, the gas volume of the cold end of the gas exchange cylinder is equal to the volume of the hot gas end. At this time, the average temperature of the total gas in the gas exchange cylinder is set value P. When the average temperature of the total gas in the ventilating cylinder is higher than the set value P, the gas expands to work. When the average temperature of the total gas in the ventilating cylinder is lower than the set value P, the gas contracts to work.

As shown in FIG. 1 and FIG. 1A, the work piston 15 A of the first group of cylinder assemblies A is located at the top dead center position, the ventilating piston 14 A is located at the upper end portion of the ventilating cylinder 12A; and the work piston of the third group of cylinder assemblies C 15C is located at the bottom dead center position, the ventilation piston 14C is located at the lower end portion of the ventilation cylinder 12C; the work pistons 15B, 15D of the second group cylinder assembly B and the fourth group cylinder assembly D are respectively located at the intermediate position, the ventilation piston 14 B , 14D are located in the gas cylinders 12B, 12D The middle position.

The gas exchange piston 14A in the first group of cylinder assemblies A is located at the cold end 121A of the gas exchange cylinder 12A. Since the gas exchange piston 14 A occupies a certain volume, the gas volume at the hot end of the gas exchange cylinder 12A is greater than the gas volume at the cold end. Therefore, the average temperature of the total gas in the gas exchange cylinder 12A is higher than the set value P, the gas expands, and the volume becomes large, and the expanded gas sequentially passes through the heating pipe 20A, the heater 17A, the regenerator 18A, the cooler 19A, and the first The cooling line 21A is replenished to the cold end 121A of the ventilation cylinder 12A in the first group of cylinder assemblies A; meanwhile, the gas of the cold end 121A of the first group of cylinder assemblies A enters the second group of cylinder assemblies B through the first communication line 10A The sealing chamber 131B of the working cylinder , pushes the working piston 15 B to move upwards to perform work. During the entire process of the ventilation piston 14A in the first group of cylinder assemblies A moving downward from the cold end 121A to the intermediate position, the average temperature of the gas in the ventilation cylinder 12A is always higher than the set value P, and the gas is continuously expanded to perform work. Only in the intermediate position, the average gas temperature in the gas exchange cylinder 12A is equal to the set value P, and the gas in the work cylinder 13B does not work.

When the ventilation piston 14A of the first group of cylinder assemblies A moves downward to the intermediate position, the working piston 15B of the second group of cylinder assemblies B is pushed upward by the expanding gas to the top dead center; due to the transmission output mechanism adjustment control, the third The ventilation piston 14C and the work piston 15C in the group cylinder assembly C are moved upward to the intermediate position, and the ventilation piston 14D of the fourth group cylinder assembly D is moved downward to the lower portion of the ventilation cylinder, and the work piston 15D is moved downward to the lower end. Point location. When the ventilating piston 14A of the first group of cylinder assemblies A continues to move downward from the intermediate position of the ventilating cylinder 12A, it occupies the volume of the hot end 122A of the ventilating cylinder 12A, and thus the average temperature of the gas in the ventilating cylinder 12A. Below the set value P, and during the entire process of the ventilation piston 14A moving from the intermediate position to the bottom end of the ventilation cylinder 12A, the average temperature of the gas in the ventilation cylinder 12A is lower than always lower than the set value P, and the gas is contracted. The volume becomes smaller, and a negative pressure is formed in the ventilation cylinder 12A. Therefore, under the air pressure outside the cylinder of the working cylinder 12B, the working piston 15B of the second group of cylinder assemblies B moves downward from the top dead center to the intermediate position; , due to the transmission output mechanism adjustment control, the ventilation piston 14C of the third group of cylinder assemblies C moves up to the upper portion of the ventilation cylinder, the work piston 15C moves up to the top dead center, and the ventilation piston 14D of the fourth group of cylinder assemblies D and The work piston 15D moves up to the intermediate position. The process of moving the venting piston 14A of the first group of cylinder assemblies A from the bottom end portion of the ventilating cylinder 12A to the tip end portion is opposite to the above-described process of moving from the top end portion to the bottom end portion, and will not be described herein. It should be noted that the ventilation piston 14A of the first group of cylinder assemblies A moves from the top end portion of the ventilation cylinder 12A to the bottom end portion, and then moves back to the top end portion in one cycle, and passes through the ventilation cylinder 12A twice. In the intermediate position, as described above, when the ventilating piston 14A is at the intermediate position of the ventilating cylinder 12A, the average temperature of the total gas in the ventilating cylinder 12A is P, and the gas neither expands nor contracts, then the venting piston 14A is How to continue moving up or down through the middle position? Since the phase difference between adjacent sets of pistons of the adjacent two sets of cylinder assemblies is 90 degrees, when the first set of cylinder assemblies A has the gas exchange piston 14A in the middle position of the gas exchange cylinder 12A, the fourth group of cylinder assemblies D The work piston 15D is located at the bottom dead center or the top dead center. Therefore, the gas exchange piston in the fourth group of cylinder assemblies D is located at the top end or the bottom end of the gas exchange cylinder, and therefore, the change in the fourth group of cylinder assemblies D The average temperature of the total gas in the gas cylinder is higher or lower than the average temperature set value P, which may expand or contract, due to the cold end 121D of the ventilation cylinder 12D of the fourth group of cylinder assemblies and the first group of cylinder assemblies A The pipelines are connected between the sealed chambers 131A of the work cylinders 13A. Therefore, under the action of the expansion or contraction of the gas in the ventilation cylinders of the fourth group of cylinder assemblies, the work pistons 15A of the first group of cylinder assemblies A are driven upward or upward. Move down through the middle position. The working principle of the other cylinders is the same, so that the four groups of cylinders in the four-cylinder double-piston coaxial ventilating hot air machine can be continuously and smoothly moved by the transmission output mechanism adjustment control.

It can be clearly seen from Fig. 1A that each of the working pistons is only at the top dead center and the bottom dead center, and the gas moving piston that cooperates with it is in the middle position. At this time, the gas does not work, and the gas in the other positions of the working piston works. .

In the four-cylinder double-piston coaxial ventilating hot air machine shown in Fig. 1, a flywheel can be added to the crankshaft, and the inertia of the flywheel rotation can make the venting piston in each group of cylinders pass the intermediate position more smoothly, thereby Make the operation of the hot air machine more stable and reliable.

The conventional second four-cylinder double-piston coaxial ventilating hot air machine shown in Figure 2 differs from the first four-cylinder dual-piston coaxial ventilating hot air machine only in that: the venting piston and There is a gap between the cylinders of the ventilating cylinder that can pass the gas. Therefore, the hot end and the cold end of the ventilating cylinder of the cylinder assembly of this group need not communicate through the pipeline, only the cold end of the ventilating cylinder of the previous group of cylinder assemblies. versus A conduit is connected between the sealed chambers of the working cylinders of the adjacent rear group of cylinder assemblies. For example, a line 10A is communicated between the cold end 121A of the ventilation cylinder of the first group of cylinder assemblies and the sealed chamber 131B of the second group of cylinder assemblies, and the hot end 122A of the ventilation cylinder of the first group of cylinder assemblies is cooled. No connecting lines are required between the ends 121A. When the gas exchange piston moves up and down in the gas exchange cylinder, the gas in the gas exchange cylinder moves between the cold end and the hot end through the gap between the cylinder wall of the gas exchange cylinder and the gas exchange piston. The second four-cylinder double-piston coaxial ventilating hot air machine has the same structure as the first four-cylinder double-piston coaxial ventilating hot air machine, and the working principle is the same, and will not be described here.

The conventional double-acting hot air machine shown in Fig. 3 includes four sets of cylinder assemblies and a transmission output mechanism for transmitting and outputting power.

The four sets of cylinder assemblies have the same structure and are numbered clockwise or counterclockwise as the first group of cylinder assemblies E, the second group of cylinder assemblies F, the third group of cylinder assemblies G, and the fourth group of cylinder assemblies H. Four of the four sets of cylinder assemblies are arranged at the four vertices of the square.

The first group of cylinder assemblies E includes a cylinder 20E sealed at both ends by a sealing cap, and a first heater 22E, a first regenerator 23E and a first cooler 24E which are connected in sequence. A piston 21E is provided in the cylinder 20E, and there is no gap between the piston 21E and the cylinder 20E through which gas can pass. The piston connecting rod 25E protrudes from a sealing hole provided in the sealing cover, the piston connecting rod 25E-end is rigidly connected to the piston 21E, and the other end is hinged to the connecting rod 26E. The heater 22E is connected to the lower end of the cylinder 20E through a pipe or directly to form a hot end 202E, and keeps the hot end 202E in a high temperature state; the cooler 24E is connected to the upper end of the cylinder 20F through a pipe or directly to form The cold end 201F, and the cold end 201F is kept in a low temperature state, and the cooler 24H of the fourth group of cylinder assemblies H passes through the pipeline or directly communicates with the upper end portion of the cylinder 20E of the first group of cylinder assemblies to form the cold end 201E. And keep the cold end 201E - straight in the low temperature state, the greater the temperature difference between the hot end and the cold end when working, the better.

The second group of cylinder components? The third group of cylinder assemblies 0 and the fourth group of cylinder assemblies H have the same construction as the first group of cylinder assemblies E. The cooler of each set of cylinder assemblies communicates with the upper end of the cylinder of the next set of cylinder assemblies to form a cold end of the cylinder, and the phase of motion between the two pistons of the adjacent two sets of cylinder assemblies differs by 90 degrees.

The hot end 202E of the first set of cylinder assemblies E passes through the heater 22E, the regenerator 23E and the cooling The 24E is in communication with the cold end 201F of the second set of cylinder assemblies F. The piston 21E of the first group of cylinder assemblies E, the hot end 202E, the heater 22E, the regenerator 23E, the cooler 24E, the cold end 201F of the second group of cylinder assemblies F, and the piston 21F of the second group of cylinder assemblies are combined The first group of power cycle mechanisms. The hot end 202F of the second group of cylinder assemblies F is in communication with the cold end 201G of the third group of cylinder assemblies G via a heater 22F, a regenerator 23F and a cooler 24F. The piston 21F, the hot end 202F, the heater 22F, the regenerator 23F, the cooler 24F, the cold end 201G of the third group cylinder assembly G, and the piston 21G of the third group cylinder assembly of the second group cylinder assembly F are combined The second group of power cycle mechanisms. The hot end 202G of the third group of cylinder assemblies G is in communication with the cold end 201H of the fourth group of cylinder assemblies H via a heater 22G, a regenerator 23G and a cooler 24G. The piston 21G of the third group cylinder assembly G, the hot end 202G, the heater 22G, the regenerator 23G, the cooler 24G, the cold end 201H of the fourth group cylinder assembly H, and the piston 21H of the fourth group cylinder assembly are combined The third group of power cycle mechanisms. The hot end 202H of the fourth group of cylinder assemblies H communicates with the cold end 201E of the first group of cylinder assemblies E through the heater 22H, the regenerator 23H and the cooler 24H, and the piston 21H and the hot end 202H of the fourth group of cylinder assemblies E The heater 22H, the regenerator 23H, the cooler 24H, and the cold end 201E of the first group of cylinder assemblies E and the piston 21E of the first group of cylinder assemblies together constitute a fourth group of power cycle mechanisms. The four power cycle mechanisms are equivalent to four double-acting hot air machines. The structure of the machine is compact and the overall volume and quality are reduced.

In the same group of power circulation mechanisms, when the hot end of one of the pistons moves in the opposite direction to the cold end of the other piston, the volume of the sealing gas rapidly expands or contracts to force the piston to work; when the hot end of one of the pistons is the other When the cold end of the piston moves in the same direction, the sealing gas will move rapidly between the hot end of one cylinder and the cold end of the other cylinder, at which time the piston does not work.

As shown in FIG. 3 and FIG. 3A, the piston 21E in the first group of power circulation mechanisms is located at the top dead center, the piston 21G in the third group of power circulation mechanisms is located at the bottom dead center, and the pistons in the second and fourth groups of power circulation mechanisms 21F and piston 21H are respectively located at the intermediate position.

In the first set of power circulation mechanism, the crankshaft is rotated by 90 degrees under the inertia of the machine flywheel, and the hot end of the piston 21E is moved downward to the intermediate position, and the cold end of the piston 21F is moved downward to the bottom dead center, the piston 21E The hot end moves in the same direction as the cold end of the piston 21F, so at 0-90 degrees During the process, the piston 21E and the piston 21F do not work, and the gas of the hot end 202E of the cylinder E is moved to the cold end 201F of the cylinder F. When the piston 21E reaches the intermediate position and the piston 21F reaches the bottom dead center, the amount of the sealing gas in the first group of power circulation mechanisms is relatively large at the cold end 201F of the cylinder F, so that in the next 90-180 degrees, the gas The contraction forces the two pistons to move in a direction that reduces the volume of the gas, that is, moves the hot end 202E of the piston 21E downward from the intermediate position to the bottom dead center, moving the cold end 201F of the piston 21F upward from the bottom dead center to the middle. Position, at this time, the two pistons 21E and 21F perform work externally through the respective piston rods.

Under the inertia of the machine flywheel, the hot end 202E of the crankshaft driven piston 21E moves upward from the bottom dead center to the intermediate position, at which time the cold end 201F of the piston 21F moves upward from the intermediate position to the top dead center, and the cold end 201F of the piston 21F The moving direction is the same as the moving direction of the hot end 202E of the piston 21E. During the 180-270 degrees, the piston 21E and the piston 21F do not work, and the gas of the cold end 201F of the cylinder F is moved to the hot end 202E of the cylinder E. When the piston 21E reaches the intermediate position and the piston 21F reaches the top dead center, the amount of the sealing gas in the first group of power circulation mechanisms is relatively large at the hot end 202E of the cylinder E, and therefore, in the next 270-360 degrees, The gas will expand to force the two pistons to move in the direction of increasing the volume of the gas, i.e., moving the hot end 202E of the piston 21E upward from the intermediate position to the top dead center, moving the cold end 201F of the piston 21F downward from the top dead center to the intermediate position. At this time, the two pistons 21E and 21F perform work externally through the respective piston rods.

Therefore, during the cycle of the top end - bottom position - bottom dead center - middle position - top dead center of the piston 21E of the first group of power circulation mechanisms, a shrinking work process and an expansion work process are experienced. And two gas removal processes; in a cycle of the cold end 201F of the piston 21F of the first group of power cycle mechanisms from the middle position - bottom dead center - middle position - top dead center - middle position, undergoing a contraction work process, one The expansion process and two gas removal processes.

At the same time as the 0-90 degree gas transfer process of the first group of power cycle mechanisms: the second group of power cycle mechanisms are in a gas contraction process, forcing the hot end of the piston 21F to move downward from the intermediate position to the bottom dead center, the piston 21G The cold end moves from the bottom dead center to the middle position. The third group of power cycle agencies During the gas-moving process, under the inertia of the machine flywheel, the hot end of the piston 21G is moved upward to the intermediate position, and the cold end of the piston 21H is moved upward to the top dead center. The fourth set of power cycle mechanisms is in a gas expansion process, forcing the hot end of the piston 21H to move up to the top dead center and the cold end of the piston 21E to move down to the intermediate position.

The above highlights the working process of the first group of power circulation mechanisms. The four groups of power cycle mechanisms of the double-acting heat engine work simultaneously: the first set of power cycles when the output shaft of the hot air machine is at 0-90 degrees The gas of the mechanism is in the process of gas removal, the gas of the second group of power cycle mechanism is in the contraction process, the gas of the third group of power cycle mechanism is in the process of gassing, and the gas of the fourth group of power cycle mechanism is in the process of expansion; the output shaft of the heat engine is When the phase is 90-180 degrees, the first group of power circulation mechanism contracts work, the second group power cycle mechanism moves, the third group power cycle mechanism expands work, and the fourth group power cycle mechanism moves; the heat engine output shaft is at 180- When the phase is 270 degrees, the first group of power circulation mechanism is moved, the second group of power circulation mechanism is expanded, the third group of power circulation mechanism is pumped, and the fourth group of power circulation mechanism is contracted for work; the output shaft of the hot air machine is 270-360 degrees. In phase, the first set of power cycle mechanism expands work, the second set of power cycle mechanism moves, and the third set of power cycle mechanism contracts work, Four groups of power circulation mechanisms are used for gas removal. In this way, the four sets of power circulation mechanisms in the double-acting hot air machine can be continuously and smoothly moved.

When the above four sets of cylinder assemblies are working normally, a transmission output mechanism is needed to adjust and control the working phase of each cylinder piston, and the power is output. As shown in Fig. 4, a conventional transmission output mechanism for a heat engine includes an output gear 30 and a first transmission gear 31 and a second transmission gear 32 that mesh with the output gear 30, respectively. The first transmission gear 31 is connected with a first crankshaft 33, and the first crankshaft 33 is provided with two connecting curved necks 331, each of which is connected to a connecting rod (not shown); the second transmission gear 32 is connected to the second crankshaft 34, and the second crankshaft 34 is provided with two connecting curved necks 341, and each connecting curved neck 341 is connected to a connecting rod (not shown). A total of four links are connected to the two crankshafts 33, 34, and the four links are hingedly connected to the four links of the four cylinder assemblies. Thus, the reciprocating motion of the four links is finally transmitted to the output gear 30 via the crankshaft and the transmission gear to output the power.

However, in the course of use, the gear transmission mechanism is complicated in structure, high in manufacturing cost, and high in lubrication during use, resulting in high running cost; in addition, the gear transmission machine The structure is noisy during operation.

At present, the swash plate structure is also used to realize the power output, and the swash plate structure also has a problem of high lubrication requirements, resulting in high running cost and high noise. Summary of the invention

The invention solves the technical problem of high cost and high noise of the transmission output mechanism in the existing hot air machine.

In order to solve the above technical problem, the present invention adopts the following technical solutions:

The hot air machine of the present invention comprises four sets of cylinder assemblies and a transmission output mechanism for transmitting and outputting power, the transmission output mechanism comprising two rocker shaft brackets, a crank bracket, a first rocker arm assembly and a second rocker arm assembly And a crankshaft mounted on the crankshaft bracket, wherein the crankshaft is hinged with two crankshaft links; the first rocker arm assembly includes a first straight axle, a first long arm and a first short arm; a first straight shaft is rotatably supported on the rocker shaft bracket, and a first vertical portion is vertically disposed at one end of the first straight shaft, and the other end of the first vertical portion is vertically connected to the An intermediate position of the first long arm; a first connecting portion is respectively disposed at two ends of the first long arm, and the two first connecting portions are respectively perpendicular to the first straight axis, and are respectively away from the straight axis a direction extending and extending, each of the two first connecting portions is provided with a first long arm hinge portion for respectively pairing with a pair of corners of the four groups of cylinder assemblies a pair of cylinder links articulated; the first short arm Vertically connected to the first straight shaft end and adjacent to the first vertical portion, the first short arm and the first vertical portion are disposed on two sides of the first straight shaft, and the two first long arms are The center line of the first long arm hinge intersects with the central axis of the first straight axis to form a plane, and the first angle between the center line of the first short arm and the plane is 40 to 50 degrees The second angle between the central axis of the first straight axis and the center line of the two first long arm hinges is 40 to 50 degrees.

The second rocker arm assembly includes a second straight shaft, a second long arm and a second short arm; the second straight shaft is rotatably supported on the rocker shaft bracket, and the second straight shaft One end portion is vertically disposed with a second vertical portion, and the other end of the second vertical portion is vertically connected to an intermediate position of the second long arm; and a second connection is respectively disposed at two ends of the second long arm Department, the two second connections Each of the two second connecting portions is respectively provided with a second long arm hinge portion, and the two second long arm hinge portions are respectively perpendicular to the second straight axis and respectively bent away from the straight axis direction. Means for articulating a link with a pair of cylinders located at another diagonal of the four sets of cylinder assemblies; the second short arm being perpendicularly coupled to the second straight end and proximate to the second vertical a second short arm and a second vertical portion disposed on the same side of the second straight axis, a center line connecting the two second long arm hinges of the second long arm and the second straight axis The central axes intersect to form a plane, the third angle between the center line of the second short arm and the plane is 40 to 50 degrees, and the central axis of the second straight axis and the two second long arms a fourth angle between the centerlines of the hinges is 40 to 50 degrees; when the first rocker arm assembly and the second rocker arm assembly are respectively mounted to the rocker shaft bracket, the first straight axis On the same central axis as the second straight axis, the two first long arm hinges and the two second long arm hinges are respectively located at four tops of the square On, and in the same plane; the short end of the first arm, the end portion of the second short arm is respectively connected to two ends of the hinge connecting rod crankshaft.

The first long arm is bent to one side to form a first recess at an intermediate position, the first vertical portion is perpendicularly connected to the first recess of the first long arm; and the second long arm is bent to one side A second recess is formed at an intermediate position, and the second vertical portion is perpendicularly connected to the second recess of the second long arm.

The first angle, the second angle, the third angle, and the fourth angle are both 45 degrees.

The first short arm and the second short arm are respectively parallel to the two crankshaft links.

The crankshaft is located above or below the rocker arm assembly.

Wherein, the utility model further comprises a closed outer casing, wherein the hot air machine is disposed in the closed outer casing, and the sealed outer casing is filled with a certain pressure.

It can be seen from the above technical solutions that the advantages and positive effects of the hot air machine of the present invention are: in the present invention, since the transmission output mechanism is composed of only a plurality of rod members, only one crankshaft, the structure is simple and the manufacturing cost is low; During use, the transmission output mechanism transmits the circulating power generated by the four sets of cylinder components to the crankshaft output through the first rocker arm assembly and the second rocker arm assembly, respectively, and does not require complicated lubrication to lubricate it, which further reduces its Operating cost; In addition, the transmission output mechanism composed of such multiple rods is less noisy during operation.

The advantages and spirit of the present invention can be obtained by the following detailed description of the invention and the accompanying drawings. One step to understand the description of the figure

1 is a schematic view showing the structure of four sets of cylinder assemblies in a conventional first four-cylinder double-piston coaxial ventilation type heat engine;

1A is a view showing the working principle of the four-cylinder double-piston coaxial ventilating type heat engine shown in FIG. 1;

Figure 2 is a schematic view showing the structure of four sets of cylinder assemblies in a conventional second four-cylinder double-piston coaxial ventilation type heat engine;

Figure 3 is a schematic view showing the structure of four sets of cylinder assemblies in a conventional double-acting hot air machine; Figure 3A is a view showing the working principle of the double-acting hot air machine shown in Figure 3;

Figure 4 is a schematic view showing the structure of a transmission output mechanism in a conventional hot air machine;

Figure 5 is a perspective view showing the structure of the transmission output mechanism in the hot air machine of the present invention; Figure 6A is a perspective view showing the first rocker arm assembly in the transmission output mechanism shown in Figure 5; Figure 6B is a view showing the transmission output mechanism shown in Figure 5; Figure 6C shows a plan view of the first rocker arm assembly of the transmission output mechanism of Figure 5; Figure 7A shows the second rocker arm assembly of the transmission output mechanism of Figure 5 Figure 7B is a front elevational view of the first rocker arm assembly of the transmission output mechanism of Figure 5; Figure 7C is a plan view of the first rocker arm assembly of the transmission output mechanism of Figure 5; Figure 7 is a structural schematic view showing the connection relationship between the first rocker arm assembly, the second rocker arm assembly and the crankshaft connecting rod, wherein the crankshaft is above the rocker arm assembly;

Fig. 9 is a structural schematic view showing the connection relationship between the first rocker arm assembly, the second rocker arm assembly and the crankshaft connecting rod shown in Figs. 6 and 7, wherein the crankshaft is below the rocker arm assembly. detailed description

The hot air machine of the present invention comprises four sets of cylinder assemblies and a transmission output mechanism for transmitting and outputting power.

The structure of the four sets of cylinder components, as well as the gas path connection between adjacent cylinder components The technology is the same and will not be described here.

As shown in FIG. 5-8, the transmission output mechanism in the hot air machine of the present invention includes a first rocker shaft bracket 100a, a second rocker shaft bracket 100b, a crank bracket 200, a first rocker arm assembly 4, and a second The rocker arm assembly 5 and the crankshaft 300 rotatably mounted on the crank frame 200, wherein the crankshaft 300 is hinged with two crankshaft links 301a, 301b of equal length.

As shown in Figs. 6A, 6B and 6C, the first rocker arm assembly 4 includes a first straight shaft 41, a first long arm 43, and a first short arm 44. among them,

The first straight shaft 41 is rotatably supported on the first rocker shaft bracket 100a, and a first vertical portion 42 is vertically provided at one end portion of the first straight shaft 41.

The first long arm 43 has a long strip shape and is generally formed by bending a long strip toward one side and forming a first recess at an intermediate position of the first long arm. The first vertical portion 42 is vertically connected to the first recess of the first long arm 43. The first long arm 43 is respectively provided with a first connecting portion 435, 436, and the two first connecting portions 435, 436 are perpendicular to the first straight axis and respectively extend away from the straight axis. A first long arm hinge 437, 438 is provided on each of the two first connecting portions. The first long arm 43 is not limited to a long plate shape, and may have other shapes such as a round bar shape.

The first short arm 44 is vertically connected to the end of the first straight shaft 41 and is close to the first vertical portion 42, and the first short arm ₄₄ and the first vertical portion 42 are distributed on both sides of the first straight shaft 41. The center line of the two first long arm hinges 437, 438 of the first long arm 43 intersects with the central axis of the first straight shaft 41 to form a plane, the center line of the first short arm 44 and the first clip of the plane The angle is 45 degrees, and the first angle is not limited to 45 degrees, and is generally feasible in the range of 40 to 50 degrees, between the central axis of the first straight axis and the center line of the two first long arm hinges. The second angle is 45 degrees, and the second angle is not limited to 45 degrees, and is usually feasible in the range of 40 to 50 degrees.

As shown in Figs. 7A, 7B and 7C, the second rocker arm assembly 5 includes a second straight shaft 51, a second long arm 53, and a second short arm 54. among them,

The second straight shaft 51 is rotatably supported on the second rocker shaft bracket 100b, on the second straight shaft

One end portion of 51 is vertically provided with a second vertical portion 52.

The second long arm 53 has a long plate shape and is generally formed by bending one long plate toward one side, and forms a second concave portion at an intermediate position of the second long arm 53. The second vertical portion 52 is vertically connected to the second The second recess of the long arm 53. The two ends of the second long arm 53 are respectively provided with a second connecting portion 535, 536, and the two second connecting portions 535, 536 are perpendicular to the second straight axis, respectively, and are bent away from the straight axis direction, respectively. The second connecting portions 535, 536 are each provided with a second long arm hinge portion 537, 538. The second long arm 53 is not limited to a long plate shape, and may have other shapes such as a round bar shape.

The second short arm 54 is vertically connected to the end of the second straight shaft 51 and close to the second vertical portion 52, and the second short arm 54 and the second vertical portion 52 are distributed on the same side of the second straight shaft 51. The center line of the two second long arm hinges 537, 538 of the second long arm 53 intersects with the central axis of the second straight shaft 51 to form a plane, and the center line of the second short arm 54 and the third clip of the plane The angle is 45 degrees, and the third angle is not limited to 45 degrees, and is usually feasible in the range of 40 to 50 degrees. The central axis of the second straight axis is connected to the center line of the two second long arm hinges. The fourth angle is 45 degrees, and the fourth angle is not limited to 45 degrees, and is usually feasible in the range of 40 to 50 degrees.

In this embodiment, the advantage of providing the recesses at the intermediate position of the first long arm 43 and the intermediate position of the second long arm respectively is that the two first long arm hinges and the two second long arms can be symmetrically located in the same plane, so that The four piston rods have the same length and it is easy to avoid motion interference between the two long arms. Of course, for the convenience of manufacture, the two arcuate recesses may also be provided in the form of a right angle turn.

As shown in FIGS. 5 and 8, when the first rocker arm assembly 4 is mounted to the first rocker arm bracket 100a and the second rocker arm assembly 5 is mounted to the second rocker shaft bracket 100b, The shaft 41 is located on the same central axis as the second straight shaft 51; the first vertical portion 42 and the second vertical portion 52 are adjacent; the two first long arm hinge portions 437, 438 and the two second long arm hinge portions 537, 538 are located on the four vertices of the square, respectively, and are in the same plane. When the four hinges are respectively connected to the cylinder rods of the four groups of cylinder assemblies, since the work pistons of the respective cylinders are respectively located in different phases, the four hinge portions are no longer in the same plane. Two first long arm hinges 437, 438 are respectively used for hinged connection with a pair of cylinders of a pair of cylinders of the four sets of cylinder assemblies, and the two second long arm hinges 537, 538 are respectively used for The links of the pair of cylinders of the other pair of cylinders of the four sets of cylinder assemblies are hingedly connected to the ends of the first short arms 44, and the ends of the second short arms 54 are respectively hinged to the ends of the two crank links 301a, 301b. connection. The first short arm 44 is parallel or substantially parallel with one of the crankshaft links, and the second short arm 54 is parallel or base with the other crankshaft link This parallel.

In the hot air machine of this embodiment, when the two first long arm hinges of the transmission output mechanism are to be

437, 438 and two second long arm hinges 537, 538 are respectively hingedly connected with four of the four sets of cylinder assemblies shown in FIG. 1 to form four sets of cylinder double piston coaxial ventilation type hot air machine When the two first long arm hinges 437, 438 and the two second long arm hinges 537, 538 of the transmission output mechanism are respectively hingedly connected to the four links of the four sets of cylinder assemblies shown in FIG. The four sets of cylinder double-piston coaxial ventilating hot air machines are formed; when the two first long arm hinges 437, 438 and the two second long arm hinges 537, 538 of the transmission output mechanism are respectively associated with FIG. The four of the four cylinder assemblies shown are hingedly connected to form a double-acting hot air machine.

In the transmission output mechanism shown in Fig. 8, the crankshaft 300 is disposed above the rocker arm assembly; in the heat engine of the present invention, the crankshaft 300 may also be disposed below the rocker arm assembly, as shown in Fig. 9.

The transmission output mechanism of the present invention transmits the circulating power generated by the four sets of cylinder assemblies to the crankshaft output. Because the transmission output mechanism consists of only a plurality of rods, the structure is simple and the manufacturing cost is low; at the same time, no complicated lubrication system is required for lubrication during use, which further reduces the running cost; The transmission output mechanism composed of the root rods generates little noise during operation.

The hot air machine of this embodiment may further have a closed outer casing (not shown), and the hot air machine is disposed in the outer casing, and is enclosed by the outer casing, and a certain pressure gas may be filled in the outer casing. In this respect, the working pistons in each cylinder assembly work under pressure, which is beneficial to increase the power of the hot air machine. On the other hand, even if there is a slight air leakage in each piston, the leaked gas is retained in the outer casing, and the outer casing is The total amount of gas will not decrease. Industrial applicability

In summary, the hot air machine of the present invention has low requirements for heating heat sources, and has a wide range of applicable fuels, and can use fluid fuel oil, gas, solid fuel coal, crop straw, factory waste heat, renewable energy, nuclear energy, geothermal heat, solar energy, All the heat energy, such as the temperature difference between sea water and even the temperature difference between day and night, if solar energy is used as the heat source, there is no need to remove the exhaust gas, and the efficiency is higher. The hot air machine of the invention can be widely applied to drive generators to generate electricity, drive water pump to pump water, drive compressor refrigeration, It drives the fan to supply air and power the agricultural machinery.

The scope of the present invention is not limited by the preferred embodiments disclosed herein. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the invention. Therefore, the scope of the invention should be construed as broadly construed,

Claims

Claim

A heat engine comprising four sets of cylinder assemblies and a transmission output mechanism for transmitting and outputting power, wherein the transmission output mechanism comprises two rocker shaft brackets, a crank bracket, a first rocker arm assembly, a second rocker arm assembly and a crankshaft rotatably mounted on the crankshaft bracket, wherein the crankshaft is hinged with two crankshaft links;

The first rocker arm assembly includes a first straight shaft, a first long arm and a first short arm; the first straight shaft is rotatably supported on the rocker shaft bracket, and the first straight shaft One end portion is vertically disposed with a first vertical portion, and the other end of the first vertical portion is vertically connected to an intermediate position of the first long arm; And the two first connecting portions are perpendicular to the first straight axis, and respectively extend away from the straight axis direction, and each of the two first connecting portions is respectively provided with a first long arm hinge portion. Two first long arm hinges are respectively used for hinged connection with a pair of cylinders of a pair of cylinders of the four sets of cylinder assemblies; the first short arm is vertically connected to the first straight shaft end And adjacent to the first vertical portion, the first short arm and the first vertical portion are disposed on two sides of the first straight axis, and the center of the two first long arm hinges of the first long arm The line intersects with the central axis of the first straight axis to form a plane, the center line of the first short arm and the flat The first angle between the first straight axis is 40 to 50 degrees, and the second angle between the central axis of the first straight axis and the center line of the two first long arm hinges is 40 to 50 degrees;

The second rocker arm assembly includes a second straight shaft, a second long arm and a second short arm; the second straight shaft is rotatably supported on the rocker shaft bracket, and the second straight shaft One end portion is vertically disposed with a second vertical portion, and the other end of the second vertical portion is vertically connected to an intermediate position of the second long arm; and two ends of the second long arm are respectively provided with a second connection And the two second connecting portions are respectively perpendicular to the second straight axis, and are respectively bent away from the straight axis direction, and the two second connecting portions are respectively provided with a second long arm hinge portion. Two second long arm hinges are respectively used for hinged connection with a pair of cylinders of the other pair of cylinders of the four sets of cylinder assemblies; the second short arm is vertically connected to the second straight shaft end And adjacent to the second vertical portion, the second short arm and the second vertical portion are disposed on the same side of the second straight axis, the second long arm The center line of the two second long arm hinges intersects with the central axis of the second straight axis to form a plane, and the third angle between the center line of the second short arm and the plane is 40~ 50 degrees, a fourth angle between the central axis of the second straight axis and the center line of the two second long arm hinges is 40 to 50 degrees;

When the first rocker arm assembly and the second rocker arm assembly are respectively mounted on the rocker shaft bracket, the first straight shaft and the second straight shaft are located on the same central axis, and the two first long arms The hinge portion and the two second long arm hinge portions are respectively located at four vertices of the square and are located in the same plane; the ends of the first short arm and the ends of the second short arm are respectively connected with the two crank connecting rods The end is hingedly connected.

The hot air machine according to claim 1, wherein the first long arm is bent to one side to form a first recess at an intermediate position, and the first vertical portion is vertically connected to the first long arm The second long arm is bent to one side to form a second recess at an intermediate position, and the second vertical portion is perpendicularly connected to the second recess of the second long arm.

The hot air machine according to claim 1 or 2, wherein the first angle, the second angle, the third angle, and the fourth angle are both 45 degrees.

The hot air machine according to claim 3, wherein the first short arm and the second short arm are respectively parallel to the two crank link.

The hot air machine according to claim 4, wherein the crankshaft is located above or below the rocker arm assembly.

The hot air machine according to claim 5, further comprising a closed outer casing, wherein the hot air machine is disposed in the closed outer casing, and the closed outer casing is filled with a certain pressure.