CN201096033Y - Double-power stirling engine - Google Patents

Abstract

A dual-power Stirling engine comprises a piston seat, a gas-moving piston arranged in the piston seat, an airtight piston and a push rod. The piston seat is provided with a piston tube, the airtight piston is arranged in the piston tube, one end of the push rod is connected to the air moving piston, and the other end of the push rod movably penetrates through the airtight piston and extends out of the piston seat.

Description

Dual Power Stirling Engine

technical field

The utility model relates to a heat engine which converts thermal energy into kinetic energy, in particular to a displacer type Stirling engine with dual power outputs.

Background technique

The Stirling engine is an external combustion reciprocating engine. It mainly consists of two cylinders, one for heating and the other for cooling. The heating cylinder is heated by an external heat source, and the cooling cylinder is cooled by external cooling, and the two cylinders are connected. Thereby, through the movement of the pistons in the two cylinders, the gas in the cylinders is promoted to flow between the two cylinders, and cooperate with the connecting rods, cranks, flywheels and other mechanisms connected between the two cylinders to act externally.

In addition to the above-mentioned twin-cylinder Stirling engine, there is also a displacer type Stirling engine. The air-shifting piston Stirling engine integrates the aforementioned two cylinders into one large cylinder, and the heating position is at the bottom of the large cylinder, and the cooling position is at the top of the large cylinder. The air-moving piston is arranged in the large cylinder, and the air-moving piston is not airtight in the large cylinder, and the air in the large cylinder can be moved freely when moving up and down. In addition, a smaller airtight piston (or power piston) is arranged on the top of the large cylinder. When the air-moving piston moves in the large cylinder, the gas in the large cylinder can be forced to move up and down due to expansion or contraction, so as to do work externally.

However, this gas-moving piston Stirling engine in the past has only a single large cylinder, so it is not as good as the dual-cylinder type with dual power outputs. In addition, although the previous two-cylinder Stirling engine has dual power outputs, the output power is unbalanced because the two cylinders cannot be coaxial, so that the work done by them is often easily lost due to motion deflection.

In view of this, in order to improve and solve the above-mentioned defects, the applicant has devoted himself to research and combined with the application of theories, and finally proposed a utility model with a reasonable design and effectively improved the above-mentioned defects.

Utility model content

The main purpose of the utility model is to provide a dual-power Stirling engine, which improves the gas-moving piston Stirling engine in the past, and has dual power output; meanwhile, because the dual power output by it is It is driven by the same axis, so the driven mechanism is not easy to produce deflection during movement, so it is not easy to consume the work done.

In order to achieve the above-mentioned purpose, the dual-power Stirling engine provided by the utility model includes: a piston seat, which is formed with a hollow chamber, and the piston seat is provided with a piston tube, and the piston tube has a The air-tight passage connected to the chamber; the air-moving piston is arranged in the chamber; the air-tight piston is arranged on the air-tight passage; and the push rod is connected to the air-moving piston at one end and Move through the airtight piston and protrude out of the piston seat; thus, the airtight piston and the push rod can be used as dual power outputs.

According to the dual-power Stirling engine provided by the utility model, the gas-moving piston Stirling engine has been improved in the past, and has dual power output; The driven mechanism is not easy to produce deflection when moving, so it is not easy to consume the work done.

Description of drawings

Fig. 1 is the perspective view of the first application embodiment of the utility model;

Fig. 2 is a plane sectional view of the first application embodiment of the utility model;

Fig. 3 is the three-dimensional appearance diagram of crankshaft of the present utility model;

Fig. 4 is a sectional view of section 4-4 of Fig. 2;

Fig. 5 is a schematic diagram (1) of the action of the embodiment shown in Fig. 2;

Fig. 6 is the action schematic diagram (2) of the embodiment shown in Fig. 2;

Fig. 7 is a plane sectional view of a second application embodiment of the present invention;

Fig. 8 is a plane sectional view of a third application embodiment of the present invention;

[Description of main component symbols]

<this utility model>

piston seat 1

Carcass 10 Chambers 100

Bottom plate 11 Heating surface 110

Top Plate 12 Heat Dissipating Fins 120

Ring cover 13 Ring cover 14

Gasket 15

Piston tube 16 Airtight channel 160

Air displacement piston 2

Gas-tight piston 3

Second pivot seat 30

Putter 4

First pivot seat 40

crankshaft 5

Pivot end 50

Connecting rod 51 First pivot part 510

Crank 52 Second pivot 520

Shaft seat 6

Bottom 60

Arm 61 Bearing part 610

Shaft sleeve 611

First Joystick 7

Second Joystick 8

fan wheel 9

gear set 90

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings, but the accompanying drawings are only for reference and description, and are not intended to limit the utility model.

Figures 1 and 2 are a three-dimensional appearance view and a plane sectional view of a first application embodiment of the present invention, respectively. The utility model provides a dual-power Stirling engine. The dual-power Stirling engine mainly includes a piston seat 1, an air-moving piston 2, an airtight piston 3, and a push rod 4; wherein:

The piston seat 1 can include a body 10, a bottom plate 11, a top plate 12 and two ring covers 13, 14. The body 10 is hollow and communicates with its upper and lower ends. Bottom and top boards 11, 12 are respectively covered on the upper and lower openings of the carcass 10, and sealing gaskets 15 are provided between each other to seal them tightly. Thus, through the combination of the bottom and top plates 11 , 12 and the body 10 , a hollow chamber 100 located in the piston seat 1 is formed, for the above-mentioned air-moving piston 2 to be accommodated inside the chamber 100 . The two-ring cover 13,14 is placed on the bottom and the top plate 11,12 respectively, and is screwed with the carcass 10, so that the bottom, the top plate 11,12 and the carcass 10 are closely combined to make the chamber 100 in a sealed state.

As mentioned above, the piston seat 10 has a heating surface 110 under the bottom plate 11, and the heating surface 110 is located on the outer side of the piston seat 10, such as the bottom surface; A sheet 120, and a piston tube 16 is further protruded from the top plate 12. The piston tube 16 is hollow inside and has an airtight passage 160 communicating with the chamber 100 , so that the above airtight piston 3 cooperates with the airtight passage 160 and can move therein.

The push rod 4 is connected with the above-mentioned air-moving piston 2, and passes out of the air-tight piston 3, so that when the air-moving piston 2 moves, it can not only push the air-tight piston 3 to do work, but also drive the push rod 4 to do work together, so that The Stirling engine has dual power outputs. The push rod 4 is an elongated rod body, one end of which is connected to the air-removing piston 2 , and the other end extends toward the airtight passage 160 , and penetrates into the airtight piston 3 so that it can move out of the piston seat 1 . Accordingly, when the heating surface 110 below the piston seat 1 is heated by the heat source, most of the air in the chamber 100 will expand due to heat, so that the gas pressure in the chamber 100 will increase, driving the gas displacement piston 2 in the chamber. This is a power output; at the same time, when the air-moving piston 2 moves upward, it will also push the airtight piston 3 to move upward in the airtight passage 160 to perform work, which is Another PTO. Therefore, the dual power Stirling engine of the present invention realizes dual power output by passing through the push rod 4 of the airtight piston 3 and the airtight piston 3 to perform work.

Therefore, through the above-mentioned structural composition, the dual-power Stirling engine of the present invention can be obtained.

Please refer to Fig. 1 and Fig. 2 together again, the utility model also provides a kind of coaxial Stirling power mechanism, and it is except comprising above-mentioned dual-power Stirling engine, also further comprises crankshaft 5, axle seat 6, and Two first joysticks 7 and two second joysticks 8; wherein:

Please refer to Fig. 3 first, the crankshaft 5 includes two concentric pivot ends 50, a connecting rod 51 located between the two pivot ends 50 and with different axes, and two connecting rods 51 and two pivot ends respectively connected to each other. Crank 52 between 50. Each has a first pivot 510 between the connecting rod 51 and the two cranks 52, and each has a second pivot 520 between the two cranks 52 and the two pivot ends 50, and the first and second pivots 510, 520 are all connected to each other. The pivot end 50 is arranged eccentrically.

Please refer to FIG. 1, FIG. 2 and FIG. 3 together. The crankshaft 5 is pivotally connected to the shaft seat 6. The shaft seat 6 is roughly U-shaped and has a ring-shaped bottom 60 to be sleeved on the piston tube 16 of the aforementioned Stirling engine. , and two opposite parts of the bottom 60 respectively extend upwards with support arms 61 . Two support arms 61 all form bearing portion 610 at its top end, and then be provided with axle sleeve 611 in each bearing portion 610, when for crankshaft 5 horizontally placed between two support arm 61 top ends, can make the two pivots of crankshaft 5 The shaft ends 50 are pivotally connected to the two shaft sleeves 611 respectively. In addition, the airtight piston 3 and the push rod 4 of the above-mentioned Stirling engine protrude between the two arms 61 and are located below the crankshaft 5. The top of the push rod 4 is provided with a first pivot seat 40, the first pivot Between the button seat 40 and the first pivot portion 510 of the crankshaft 5, the above-mentioned first joystick 7 is connected for transmission, and the airtight piston 3 is also provided with a second pivot seat 30, and the second pivot seat 30 is connected to the crankshaft 5. The second pivots 520 are connected and moved by the second joystick 8 , and the first and second joysticks 7 and 8 are arranged symmetrically.

Therefore, the coaxial Stirling dynamic mechanism of the present invention can be obtained through the above-mentioned structural composition.

Accordingly, as shown in FIG. 4 , when the Stirling engine starts running, the push rod 4 and the airtight piston 3 can respectively drive the first and second joysticks 7 and 8 to drive the crankshaft 5 to rotate. As shown in Figure 5, as mentioned above, when the heating surface 110 under the piston seat 1 is heated by the heat source, the air in the chamber 100 expands due to the heat, thereby pushing the air-moving piston 2 upwards, which in turn makes the push rod 4 Push the first hinge seat 40 upwards, so that the first joystick 7 drives the crankshaft 5 to rotate. And when the air-moving piston 2 pushes upwards, the airtight piston 3 will also be pushed upwards together, so the second joystick 8 can be made to drive the crankshaft 5 to rotate. As shown in Fig. 6 again, when most of the air in the chamber 100 flows close to the top plate 12 and is cooled by the cooling fins 120, the gas pressure in the chamber 100 will decrease due to cooling contraction, and now the The air-moving piston 2 and the air-tight piston 3 move downwards; such a repeated cycle can drive the crankshaft 5 to rotate continuously through the first and second joysticks 7 and 8 constantly swinging, and the first and second joysticks 7 , 8 are both coaxially promoted by the gas-moving piston 2, and are arranged symmetrically, so that the movement is relatively stable and difficult to produce deflection, so it is not easy to consume the work done.

As mentioned above, the crankshaft 5 that is driven to rotate can be further connected to the fan wheel 9 at the end extended from the pivot end 50, as the final driving member; or as shown in FIG. Each end of the pivot end 50 is connected to a fan wheel 9 ; or as shown in FIG. 8 , the fan wheel 9 is further driven to rotate through a gear set 90 . And these schemes are only various applications of the utility model.

The above-mentioned embodiments are only for the purpose of illustrating the utility model, rather than restricting the utility model. Those skilled in the art can make various equivalent structural changes without departing from the spirit and scope of the utility model. Within the scope of the utility model. The protection scope of the utility model is defined by the claims.

Claims (4)

1. A dual power Stirling engine, characterized in that it comprises: A piston seat, in which a hollow chamber is formed, and a piston tube is arranged on the piston seat, and an airtight passage communicating with the chamber is provided in the piston tube; The air-moving piston is arranged in the chamber; an airtight piston located on said airtight passage; and One end of the push rod is connected to the air-moving piston, and the other end moves through the air-tight piston and protrudes out of the piston seat. 2. The dual power Stirling engine as claimed in claim 1, wherein the piston seat is composed of a hollow body, a bottom plate and a top plate, and a seal is provided between the bottom plate, the top plate and the body respectively. washer. 3. The dual-power Stirling engine as claimed in claim 2, wherein a heating surface is provided below the bottom plate, and a plurality of outwardly extending cooling fins are provided on the top plate. 4. The dual-power Stirling engine as claimed in claim 2 or 3, wherein the piston seat also includes two ring covers placed on the bottom and top plates respectively.

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