JP4734488B2 - Rotating fluid engine - Google Patents

Description

In the present invention, a circular rotor is eccentrically supported inside a cylindrical housing, and a plurality of piston cylinders arranged at equal angles in the circumferential direction are provided on the outer periphery of the rotor, and the pistons are integrated with the pistons. A vane that forms a plurality of partition chambers in contact with the inner wall portion of the cylindrical housing is provided, and a predetermined amount is provided in each of the partition chambers and in the piston cylinder chamber formed on the rear end side of the piston of each piston cylinder. The present invention relates to a rotary fluid engine configured to generate a required rotational driving force in a rotor by recirculating the fluid.

  Conventionally, an isopressurized differential rotary fluid prime mover has been proposed as a prime mover using pressure as input energy (see Patent Document 1). In this rotary fluid prime mover described in Patent Document 1, the outer cylinder of the vane rotary hydraulic cylinder has an elliptical shape, and is linked to the movement of the vane that moves in accordance with the rotation angle of the rotor inside the rotor or outside the machine body. In order to reduce the back pressure side pressure of the pressure facing through the vane inside the cylinder, a piston / cylinder volume ratio is installed. Or a configuration in which a pressure reducing valve or the like is used is disclosed. That is, the rotating fluid prime mover having such a configuration increases the ratio of the positive thrust and the reverse thrust generated by the shape of the cylinder by making the cylinder outer cylinder elliptical, and installs a circulating piston cylinder. The feature is that the circuit on the pressure side and the non-pressure side are independent from the vane. When hydraulic pressure is injected from the pressure port, the pair of cylinders are equally pressurized and the rotor rotates clockwise. It is composed.

  In addition, a power-saving input prime mover has been proposed as an equal pressure rotating engine in which a fluid pressure is a main input and a pressurizing pressure is a main input to generate a rotational motion in a cylinder (see Patent Document 2). This patent document 2 uses a vane type cylinder such as an elliptical type or a petal type, pressurizes only one cylinder to form a discharge cylinder, provides a circulation circuit between the discharge cylinder and the output cylinder, and discharges the cylinder by equivalent pressure. A configuration is disclosed in which the internal fluid is circulated to the output cylinder to generate a propulsive force, and the rotational motion is continued by repeating depressurization and pressurization every half or partial rotation.

  On the other hand, conventionally, as a radial type fluid machine that recovers mechanical energy while decompressing and expanding a high-pressure fluid, a fluid machine that can be applied to an expander configured to reduce mechanical loss has been proposed (patent) Reference 3). This Patent Document 3 includes (1) a rotating rotating liner, and (2) a rotating center axis parallel to the rotating center axis of the rotating liner at a position deviated from the rotating center of the rotating liner. A rotating cylinder; and (3) a plunger slidably accommodated in an insertion hole formed in the rotating cylinder, and (4) an operating chamber configured by the insertion hole and the plunger. In response to the volume change of the rotary liner, a force in a direction to reduce the volume of the working chamber is received from the inner wall side of the rotary liner, and (5) the plunger slide passing through the center of the cross section of the plunger and parallel to the sliding direction of the plunger A configuration is disclosed in which the movement axis CLp is deviated from the rotation center of the rotary cylinder.

  However, in the radial type fluid machine described in Patent Document 3 having the above-described configuration, each of the rotary cylinders rotating eccentrically with respect to the rotary liner has four working chambers formed on the inner wall side of the rotary liner by the plunger. When the working chamber sequentially changes in volume, the reaction force F acting on the plunger is such that the plunger sliding axis CLp is deviated from the rotation center of the rotation cylinder. It becomes a rotational force, and the mechanical force can be reduced by increasing the rotational force.

JP-A-5-71463 JP-A-8-61217 JP 2003-254001 A

  The rotary fluid prime mover disclosed in Patent Document 1 is arranged such that an elliptical cylinder outer cylinder is centered on a circular rotor, and piston cylinders are equally divided at four locations on the outer periphery of the rotor. Are provided with a piston and a vane integrated therewith to form a cylinder having four equal volumes partitioned by the vane along the inner wall surface of the cylinder outer cylinder. Then, by applying fluid pressure from the outside to the pair of opposed cylinders, the rotor rotates, and the fluid in the cylinder rotates and moves along the inner wall surface of the cylinder outer cylinder. Accordingly, the fluid in each piston cylinder can reciprocate between adjacent piston cylinders to continuously rotate the rotor.

  However, although it is theoretically possible to rotationally drive the rotary fluid prime mover having the above-described configuration, in order to drive the rotor in an efficient and smooth manner, the arrangement of the piston cylinder provided in the rotor and the piston The specific structure of the vane integrated with this is unsolved. Further, the specific arrangement of the external fluid circuit for each cylinder formed between the connecting means for forming the fluid circuit of each piston cylinder and the cylinder outer cylinder is still unsolved. It is extremely difficult to put it into practical use.

  The isobaric rotary engine disclosed in Patent Document 2 is similar to the rotary fluid prime mover disclosed in Patent Document 1, and is centered on a circular rotor with respect to an elliptical cylinder outer cylinder. A plurality of arranged ones are provided, only a pair of vanes is provided without providing a piston cylinder for the rotor, and four equal volumes of cylinders partitioned by the vanes are formed along the inner wall surface of the cylinder outer cylinder. is doing. And while applying fluid pressure from the outside to the pair of opposed cylinders, an external fluid circuit is configured to communicate with the cylinders of the adjacent cylinder outer cylinders with respect to the other pair of cylinders, The plurality of rotors can be continuously driven to rotate.

  However, although it is theoretically possible to perform rotational driving by the constant pressure rotary engine having the above-described configuration, in order to actually drive the rotor efficiently and smoothly, there is a specific configuration of the vane provided in the rotor. Unresolved. In addition, the specific connection means for the external fluid circuit for each cylinder and the specific configuration and arrangement thereof are still unsolved, and it is extremely difficult to put it to practical use as a constant pressure rotary engine.

Therefore, as a result of various examinations and trial productions, the present inventors have eccentrically supported a circular rotor inside the cylindrical housing, and have been divided and arranged at equal angles in the circumferential direction on the outer periphery of the rotor . a plurality of piston cylinder provided, and respectively in contact with the inner circumferential wall of the cylindrical housing integral with the piston of the piston cylinder is provided respectively vanes forming a plurality of compartments configuration, in each of the compartments, An external fluid circuit is provided that is piped so that the fluid sequentially flows out from the partition chamber that reaches the maximum volume state by sequentially moving with the rotation of the rotor, and that the fluid flows sequentially from the partition chamber that reaches the minimum volume state. Further, a structure in which fluid pressurizing means is provided for generating a required rotational driving force in the rotor by pressurizing the fluid pressure to the partition chamber into which the fluid reflows. As a result, the required rotational driving force can be generated in the rotor, the mechanical loss can be kept to a minimum as a power engine, and resource saving is achieved by recirculating the fluid. In addition, we succeeded in putting the rotary fluid engine into practical use, which does not cause any environmental pollution problems due to generation of waste gas, noise and high heat.

That is, in this case, in each of the compartments sequentially moves with rotation of the rotor sequentially to flow out the fluid from the partition chamber having a maximum volume state, in each piston cylinder, said piston cylinder comprising a minimum volume state maximum volume provided with a first external fluid circuit piping connected to the piston chamber formed on the rear end side of the piston to sequentially flow into the fluid, in each piston cylinder, and sequentially moves with the rotation of the rotor A second external fluid circuit connected by piping so as to sequentially flow out the fluid from the piston cylinder chamber that is in a state, and sequentially reflow the fluid from the partition chamber that is in a minimum volume state in each of the partition chambers. Provided to the partition chamber into which the fluid is re-inflowed by being connected to the pipe of the second external fluid circuit. By providing a fluid pressurizing means for antibody caused a required rotational driving force to the rotor increase the pressure, I have found that it is possible to obtain a rotary fluid engine according to the present invention.

As an alternative, in each of the partition chambers , the fluid is sequentially flown out of the partition chamber that is sequentially moved along with the rotation of the rotor to reach the maximum volume state, and the fluid is sequentially flowed from the partition chamber in the minimum volume state. An external fluid circuit connected to the pipe is provided, and the pressure of the fluid is applied to the pipe of the external fluid circuit connected to the partition chamber through which the fluid is re-inflowed to generate a required rotational driving force on the rotor. It has been found that the rotary fluid engine according to the present invention can be obtained also by providing the fluid pressurizing means.

Accordingly, an object of the present invention is to provide a piston-cylinder-shaped rotor that forms a plurality of partition chambers that are divided and arranged at equal angles in the circumferential direction inside a cylindrical housing, and the plurality of partition chambers and the piston cylinders. A predetermined amount of fluid is pressurized and recirculated in the rotor to generate the required rotational driving force in the rotor, minimizing mechanical loss as a power engine, and recirculating the fluid. Therefore, it is an object of the present invention to provide a rotary fluid engine suitable for practical use without saving resources and producing no environmental pollution problems due to generation of waste gas, noise, high heat and the like.

In order to achieve the above object, a rotary fluid engine according to claim 1 of the present invention includes a circular rotor (12) that is eccentrically supported inside a cylindrical housing (10) , and an outer peripheral portion of the rotor. Are provided with a plurality of piston cylinders ( 20A, 20B, 20C, 20D) divided and arranged at equal angles in the circumferential direction, and integrated with the pistons (22) of these piston cylinders (10a). ) respectively in contact with the plurality of compartments (16A, 16B, 16C, it is provided a vane (24) to form the 16D),
The vane (24) provided integrally with the piston of the piston cylinder in the rotor elastically feeds the roller (23) to the inner peripheral wall portion of the cylindrical housing via the spring (25) and the roller receiving member (23a), respectively. Configured with roller vanes set to abut against
The piston (22) of the piston cylinder in the rotor is provided with a guide roller (26) that elastically contacts the inner peripheral wall (10a) of the cylindrical housing behind the vane in the rotational direction ,
In the cylindrical housing, a continuous circumferential groove (34) is provided on the inner peripheral wall portion (10a) from the position of the leading vane of the partition chamber in the maximum volume state to the position of the partition chamber in the minimum volume state,
With respect to the piston cylinder chamber formed on the rear end side of the piston of each piston cylinder (20A, 20B, 20C, 20D), the first side wall (11a) of the cylindrical housing (10) The external fluid circuit (18) of the cylinder and the piston cylinder chamber in the minimum volume state communicate with each other to provide an opening groove (30) for introducing fluid, and the other side wall of the cylindrical housing 10 An opening groove portion (32) through which the pipe of the second external fluid circuit (19) and the piston cylinder chamber in the maximum volume state are communicated with each other in the portion (11b) to lead out the fluid ;
In each of the partition chambers (16A, 16B, 16C, 16D), the fluid is sequentially discharged from the partition chambers that sequentially move with the rotation of the rotor to reach the maximum volume state, and the piston cylinders (20A, 20B, 20C, 20D), a first external fluid circuit (18) piped to sequentially flow the fluid into the piston cylinder chamber that is in a minimum volume state ;
In each of the piston cylinders, the fluid is sequentially flown out of the piston cylinder chamber that is sequentially moved along with the rotation of the rotor to reach the maximum volume state, and the fluid is sequentially flowed into the partition chamber in the minimum volume state in each of the partition chambers. A second external fluid circuit (19) piped to re-inflow ,
Furthermore, a fluid pressurizing means (40) for increasing the pressure of the fluid and generating a required rotational driving force in the rotor is provided in the partition chamber into which the fluid re-inflows.

In the rotary fluid engine according to claim 2 of the present invention, the fluid is respectively connected to the pipes of the second external fluid circuit (19) piped so as to sequentially reflow the fluid from the piston cylinder chamber into the partition chamber. A fluid pressurizing means (38) for generating a required rotational driving force in the rotor by pressurizing the pressure is provided .

According to a third aspect of the present invention, there is provided a rotary type fluid engine in which the pistons arranged opposite to each other with respect to the boss portion of the rotor are arranged in the same direction between the pistons facing each other. The rod members (51) penetrating in the direction are combined to move forward and backward at the same time .

In the rotary fluid engine according to claim 4 of the present invention , a circular rotor (12) is eccentrically supported inside a cylindrical housing (10), and the outer periphery of the rotor (12) is circumferentially supported. Are provided with a plurality of piston cylinders (20A, 20B, 20C, 20D) divided at equal angles, and are integrated with the pistons (22) of these piston cylinders so as to contact the inner peripheral wall portion (10a) of the cylindrical housing. A vane (24) for forming a plurality of compartments (16A, 16B, 16C, 16D) ,
The piston (22) of the piston cylinder provided on the rotor includes an outer component (22a) provided with a vane (24) and a required gap (G) via an elastic member (50) behind the outer component. And a rear-side constituent portion provided with a guide roller (26) that elastically contacts the inner peripheral wall portion (10a) of the cylindrical housing at the rear in the rotational direction from the vane. (22c) consisting of a three-part structure ,
Each of the piston cylinders (20A, 20B, 20C, 20D) has a communication hole (54) at a position close to the boss portion of the rotor, and the rear end portions of the pistons of the piston cylinders adjacent to each other. The piston cylinder chamber formed on the side is connected in communication ,
In the cylindrical housing, a continuous circumferential groove (34) is provided on the inner peripheral wall portion (10a) from the position of the leading vane of the partition chamber in the maximum volume state to the position of the partition chamber in the minimum volume state,
In each of the partition chambers (16A, 16B, 16C, and 16D), the fluid is sequentially discharged from the partition chamber that is sequentially moved with the rotation of the rotor to reach the maximum volume state, and the fluid is discharged into the partition chamber that is in the minimum volume state. An external fluid circuit (18) connected by piping so as to sequentially flow in fluid is provided ,
One side wall portion (11a) of the cylindrical housing is formed between the outer component portion (22a) and the inner component portion (22b) of the piston at the position of the leading vane of the partition chamber that is in the minimum volume state. Corresponding to the gap (G), an opening (60) communicating with the external fluid circuit (18) is provided , and the outer component ( Corresponding to a gap (G) formed between 22a) and the inner component (22b), an opening (64) that is connected to and communicates with an adjacent partition chamber via an external communication pipe (63). Provided ,
Further, fluid pressurizing means (40, 38) for generating a required rotational driving force in the rotor by increasing the pressure of the fluid is provided in the partition chamber into which the fluid re-inflows .

In the rotary fluid engine according to claim 5 of the present invention, the pistons arranged opposite to each other with respect to the boss portion of the rotor are arranged so that the inner constituent part (22b) and the rear side constituent part of the piston respectively facing each other. (22c), the boss portion is coupled by a pair of rod members (51, 52) penetrating in the same direction as the piston forward and backward, and is configured to move forward and backward at the same time and in a correlated manner. Features.

According to the rotary fluid engine of the present invention , a piston-cylinder-shaped rotor that forms a plurality of partition chambers that are divided and arranged at equal angles in the circumferential direction inside the cylindrical housing is provided. By pressurizing and recirculating a predetermined amount of fluid in the chamber and in the piston cylinder chamber , a required rotational driving force can be generated in the rotor, the mechanical loss as a power engine can be kept to a minimum, and the fluid can be recirculated. Recycling can achieve resource saving, and can provide a rotary fluid engine suitable for practical use without causing any environmental pollution problems due to generation of waste gas, noise and high heat.

According to the rotary fluid engine of the present invention , the mechanical loss in the piston cylinder can be kept to a minimum, and the rotational drive of the rotor can be made smooth to sufficiently increase the efficiency as a power engine. The advantage that can be obtained.
Further, the recirculation of the pressurized fluid into the plurality of partition chambers and the piston cylinder chamber can be achieved smoothly and efficiently, and can be effectively utilized as a power engine.

  Next, an embodiment of a rotary fluid engine according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show the configuration of an embodiment of a rotary fluid engine according to the present invention. FIG. 1 shows a configuration of a main part of a rotary fluid engine according to this embodiment. Reference numeral 10 denotes a cylindrical housing of the rotary fluid engine according to this embodiment, and a circular rotor is provided inside the cylindrical housing 10. 12 is eccentrically supported by an eccentric shaft 14, and a plurality of piston cylinders 20A, 20B, 20C, and 20D are provided on the outer peripheral portion of the rotor 12 at equal angles in the circumferential direction, and these piston cylinders 20A to 20D are provided. Each of the pistons 22 is provided with a vane 24 that is in contact with the inner peripheral wall portion 10a of the cylindrical housing 10 to form a plurality of partition chambers 16A, 16B, 16C, and 16D.

2 and 3, the vane 24 is constituted by a roller vane set so that the roller 23 is elastically brought into contact with the inner peripheral wall portion 10a of the cylindrical housing 10 via a spring 25 and a roller receiving member 23a, respectively. . Each piston 22 of the piston cylinders 20 </ b> A to 20 </ b> D is provided with a guide roller 26 that elastically contacts the inner peripheral wall portion 10 a of the cylindrical housing 10 behind the vane 24 in the rotational direction. The guide roller 26 has a plurality of rollers 27a, 27b, respectively is separated predetermined interval 27c, consist configurations supported by resiliently retained support member 28 by a common spring 29 (see FIGS. 2 and 3) .

As shown in FIG. 1, the pistons 22 provided in the piston cylinders 20 </ b> A to 20 </ b> D pass through the boss portion of the rotor 12 in the same direction as the forward / backward direction of the piston 22 and are opposed to each other. , 22 are connected by a rod member 51, respectively. By configuring in this way, the pistons 22 facing each other simultaneously move forward and backward relative to the inner peripheral wall portion 10a of the cylindrical housing 10 (see FIG. 1).

However, in the rotary fluid engine according to the present embodiment, the partition chambers 16A to 16D formed in the inner peripheral portion of the cylindrical housing 10 are sequentially moved along with the rotation of the rotor 12, and the maximum volume state (16B → 16C). From the piston cylinder chamber formed on the piston rear end side of the piston cylinder in the minimum volume state (20D → 20A) in each of the piston cylinders 20A to 20D. A first external fluid circuit 18 connected by piping so as to sequentially flow in the fluid is provided (see FIG. 1).

Further, in each of the piston cylinders 20A to 20D , the fluid is transferred from the piston cylinder chamber formed on the piston rear end side of the piston cylinder that is sequentially moved with the rotation of the rotor 12 to reach the maximum volume state (20B → 20C). sequentially causes to flow, the each compartment 16 A- 16 D, providing the second external fluid circuit 19 connected by piping so as to sequentially re-flow into the minimum volume state (16D → 16A) to become the partition chamber from said fluid ( (See FIG. 1).

In this case, in the rotor 12, the piston cylinder chamber formed on the rear end side of the piston 22 of the piston cylinders 20 </ b> A to 20 </ b> D is opened with respect to both side walls 11 a and 11 b of the cylindrical housing 10, and For one side wall portion 11a of the cylindrical housing 10, the first external fluid circuit 18 and the piston cylinder (20D → 20A) chamber in the minimum volume state communicate with each other to introduce fluid. An opening groove 30 is provided. Reference numeral 31 denotes a fluid introduction opening of a pipe forming the first external fluid circuit 18 (see FIG. 4).

In addition, the other side wall portion 11b of the cylindrical housing communicates the second external fluid circuit 19 and the piston cylinder (20B → 20C) chamber in the maximum volume state with each other, thereby allowing fluid to flow. An opening groove 32 to be led out is provided. Reference numeral 33 denotes a fluid outlet opening of a pipe forming the second external fluid circuit 19 (see FIG. 4).

On the other hand, in the cylindrical housing 10, the inner circumferential wall portion 10a from the position of the leading vane 24 of the partition chamber 16B in the maximum volume state to the position of the partition chamber 16D in the minimum volume state is continuous and the first A circumferential groove 34 communicating with the piping of one external fluid circuit 18 is provided. In this case, it is preferable that an atmospheric pressure holding type fluid storage tank 37 capable of temporarily storing a required amount of fluid is provided in a part of the piping of the first external fluid circuit 18. Further, a fluid outlet opening 35 is provided corresponding to the position of the leading vane 24 of the partition chamber 16D in the minimum volume state (see FIG. 1) communicating with the piping of the first external fluid circuit 18.

That is, in the arrangement state of the rotor 12 shown in FIG. 1, the partition chambers 16 </ b> C and 16 </ b> D are in communication with each other through the circumferential groove portion 34. Next, at the same time as the rotor 12 rotates in the clockwise direction, the partition chambers 16B to 16D are in communication with each other, and the pressurized fluid in the partition chamber 16B enters the partition chamber 16D via the circumferential groove 34. The fluid is discharged to the fluid outlet opening 35 communicating with the pipe of the first external fluid circuit 18 provided.

In the cylindrical housing 10, a fluid introduction opening 36 that communicates with the piping of the second external fluid circuit 19 is provided at the position of the leading vane 24 of the partition chamber 16 </ b> A in the minimum volume state . In this case, a part of the pipe of the second external fluid circuit 19 is coaxially coupled with an eccentric shaft 14 serving as a rotation shaft of the rotor 12 and is driven to rotate synchronously to spirally pressurize and accelerate the fluid. A pump 38 is preferably provided. Further, in the vicinity of the fluid introduction opening 36 communicating with the pipe of the second external fluid circuit 19, the fluid pressure is applied to the partition chamber 16A to cause the rotor 12 to generate a required rotational driving force. A pressure opening 41 communicating with the fluid pressurizing means 40 is provided (see FIG. 1). As the fluid pressurizing means 40, for example a high-pressure gas filled in the high pressure cylinder or the like (50 kg / cm @ 2 or higher), provided that configured to exert the required pressure to the fluid via an appropriate pressure regulating valve be able to.

  Further, in the cylindrical housing 10, an air vent opening communicating with the air vent means 42 is formed in a part of the inner peripheral wall portion 10a between the partition chambers 10A to 10D from the minimum volume state (16A) to the maximum volume state (16B). A portion 43 is provided (see FIG. 1).

  In the cylindrical housing 10, the eccentric shaft 14 that eccentrically supports the circular rotor 12 can be constituted by a double-leaf cam coupling 44 with respect to the rotor 12. With this configuration, it was confirmed that the rotational driving force transmitted to the eccentric shaft 14 via the rotor 12 can be effectively increased (see FIGS. 1 to 3).

1 to 3, reference numeral 46 indicates a guide rod for guiding and supporting each piston 22 of the piston cylinders 20 </ b> A to 20 </ b> D provided on the rotor 12. These guide rods 46 are screwed and fixed at their one ends 46 a to the shaft portion side of the rotor 12, and the other ends 46 b are inserted through guide holes 47 formed in the respective pistons 22 through spring members 48 so as to be able to advance and retract. Deploy. By comprising in this way, the piston motion of each piston 22 in piston cylinder 20A-20D can be achieved smoothly (refer FIG. 1 thru | or FIG. 3).

As described above, the rotary fluid engine according to the present embodiment has the circular rotor 12 eccentrically supported inside the cylindrical housing 10 and is axially supported, and is divided and arranged at equal angles in the circumferential direction on the outer periphery of the rotor . a plurality of piston cylinder 20A to 20D, provided these piston cylinder of the piston 22 and integral with the inner wall of the cylindrical housing abuts against the vane 24 obtained by forming a plurality of compartments 16A~16D each respectively A simple configuration can be obtained.

Thus, in each of the partition chambers 16A to 16D , the fluid is sequentially discharged from the partition chamber that sequentially moves with the rotation of the rotor 12 and reaches the maximum volume state, and the minimum volume state is set in each of the piston cylinders 20A to 20D. A first external fluid circuit 18 connected and arranged so that the fluid flows in sequentially from the piston cylinder chamber is provided, and the piston cylinders 20A to 20D sequentially move with the rotation of the rotor 12 to reach a maximum volume state. By sequentially flowing out the fluid from the piston cylinder chamber, and providing each of the partition chambers with a second external fluid circuit 19 connected and arranged so as to sequentially reflow the fluid from the partition chamber in the minimum volume state. , A plurality of compartments and a piston that are formed inside the cylindrical housing 10 With respect to the cylinder chamber recycling path can be smoothly circulate fluid can be easily and conveniently disposed configuration.

  Then, the pressure of the fluid flowing through the recirculation path can be reduced by providing a fluid pressurizing means 40 for the partition chamber connected to the second external fluid circuit 19 and re-entering the fluid. The rotor 12 is appropriately pressurized to generate a required rotational driving force in the clockwise direction in FIG. 1 and to exhibit a very effective function as a power engine.

  Therefore, when implementing the rotary fluid engine of the present embodiment having the above-described configuration, a highly airtight housing configuration is used, the fluid has a high viscosity index (100 or more), oxidation stability, anti-emulsification property, and anticorrosion properties. Using a naphthenic or paraffinic hydraulic oil with excellent antifoaming properties and setting the pressurizing condition by the fluid pressurizing means to about 55 kg / cm2 or more, the diameter is about 0.18 m, A rotor whose total volume is set to about 3.8 m 3 can be driven to rotate at an average of about 1000 rpm, and an average drive output of about 179.5 kgf · m / sec or more on its rotating shaft (eccentric shaft). It is possible to obtain.

  FIGS. 5 to 8 show the configurations of other embodiments of the rotary fluid engine according to the present invention. For convenience of explanation, the same components as those of the rotary fluid engine according to the first embodiment shown in FIGS. 1 to 4 described above will be described with the same reference numerals.

5 shows a main configuration of the rotary type fluid engine in the present embodiment, axially supported by the eccentric shaft 14 to the interior of the cylindrical housing 10 is decentered circular rotor 12, circular in the outer peripheral portion of the rotor 12 A plurality of piston cylinders 20A, 20B, 20C, and 20D that are divided and arranged at equal angles in the circumferential direction are provided. The piston cylinders 20A to 20D are integrated with the pistons 22 and abut against the inner peripheral wall portion 10a of the cylindrical housing 10. each of the plurality of compartments 16A Te, 16B, 16C, comprising a vane 24 comprising forming a 16D from the configuration provided respectively.

In the present embodiment, each piston 22 of the piston cylinders 20A to 20D has an outer component 22a provided with a vane 24 and an elastic member 50 behind the outer component 22a as shown in FIG. An inner component 22b disposed opposite to each other with a gap G therebetween, and a rear component 22c provided with a guide roller 26 elastically contacting the inner wall 10a of the cylindrical housing 10 at the rear of the vane 24 in the rotational direction. It is comprised by the 3 division structure which consists of.

The vane 24 provided on the outer side component 22a of the piston 22 is a roller vane set so that the roller 23 is elastically brought into contact with the inner peripheral wall 10a of the cylindrical housing 10 via a spring 25 and a roller receiving member 23a, respectively. (See FIG. 6). The guide roller 26 provided on the rear side component 22c of the piston 22 is provided on a support member 28 that is elastically held by a common spring 29 by separating a plurality of rollers 27a, 27b, and 27c from each other by a predetermined distance. It consists of a supported configuration (see FIG. 6).

  As shown in FIG. 5, each piston 22 provided in the piston cylinders 20 </ b> A to 20 </ b> D penetrates through the boss portion of the rotor 12 so as to freely advance and retract, and each of the inner components of the pistons 22, 22 facing each other. The pair of rod members 51 and 52 are coupled between 22b and the rear side component 22c. With such a configuration, the pistons 22 and 22 facing each other move forward and backward simultaneously and in relation to the inner wall portion 10a of the cylindrical housing 10 (see FIG. 5).

Further, in the rotary fluid engine in the present embodiment, the fluid in each of the partition chambers 16A to 16D formed in the inner peripheral portion of the cylindrical housing 10 is sequentially moved along with the rotation of the rotor 12 to obtain the maximum volume state. A first external fluid circuit 18 connected by piping so as to sequentially flow out from the partition chamber 16B and to sequentially flow from the partition chamber 16A in the minimum volume state is provided (see FIG. 5 ).

Further, in the rotary fluid engine in the present embodiment, the maximum volume is obtained by sequentially moving the fluid in the piston cylinder chamber formed on the rear end side of the piston 22 of each of the piston cylinders 20A to 20D as the rotor 12 rotates. A communication hole 54 is formed in the boss portion of the rotor 12 so that a predetermined volume of fluid sequentially circulates in response to the change from the state to the minimum volume state (see FIGS. 5 to 7).

However, in the cylindrical housing 10, the circumferential groove portion that is continuous with the inner peripheral wall portion 10a from the position of the leading vane 24 of the partition chamber 16B in the maximum volume state to the position of the partition chamber 16D in the minimum volume state. 34 is provided. In this case, a fluid outlet opening 35 communicating with the piping of the first external fluid circuit 18 is provided in correspondence with the position of the leading vane 24 of the partition chamber 16B in the maximum volume state . Further, it is preferable to provide an atmospheric pressure holding type fluid flow rate adjusting tank 55 capable of storing a required amount of fluid and adjusting the flow rate in a part of the piping of the first external fluid circuit 18. is there. Then, a pipe 57 is connected to an atmospheric pressure maintaining fluid flow rate adjustment tank 56 capable of storing fluid and adjusting the flow rate corresponding to the position of the leading vane 24 of the partition chamber 16D in the minimum volume state. A fluid adjustment opening 58 that communicates therewith is provided (see FIG. 5).

That is, in the arrangement state of the rotor 12 shown in FIG. 5, the partition chambers 16 </ b> C and 16 </ b> D are in communication with the circumferential groove portion 34, and the rotor 12 that rotates in the clockwise direction is immediately before the partition shown in FIG. fluid to be pressurized state in the chamber 16B is at the same time the state shown in FIG. 5, is discharged to the fluid outlet opening 35 to the pipe communicating with said first external fluid circuit 18. Next, the rotation of the rotor 12 in the clockwise direction brings the partition chambers 16B to 16D into communication, and the fluid in the partition chambers 16C and 16D is provided in the partition chamber 16B via the circumferential groove portion 34. The fluid is discharged to the fluid outlet opening 35 communicating with the pipe of the first external fluid circuit 18.

Further, the cylindrical housing 10 is provided with a fluid introduction opening 36 that communicates with the piping of the first external fluid circuit 18 in correspondence with the position of the leading vane 24 of the partition chamber 16A in the minimum volume state . In this case, a part of the pipe of the first external fluid circuit 18 is coupled to an eccentric shaft 14 as a rotation shaft of the rotor 12 and is driven to rotate synchronously, and is a spiral shape for pressurizing and accelerating the fluid. It is preferable to provide a pump 38 and an air venting means 42. In the piping of the first external fluid circuit 18 that communicates with the fluid introduction opening 36, the fluid pressure is applied to the partition chamber 16A to cause the rotor 12 to generate a required rotational driving force. The fluid pressurizing means 40 is provided (see FIG. 5 ). As the fluid pressurizing means 40, for example, a high pressure gas (50 kg / cm @ 2 or more) filled in a high pressure cylinder or the like is provided so that a required pressure is applied to the fluid through a pressure regulating valve as appropriate. be able to.

  Further, the eccentric shaft 14 that eccentrically supports the circular rotor 12 inside the cylindrical housing 10 can be constituted by a double-leaf cam coupling 44 with respect to the rotor 12. With this configuration, the rotational driving force transmitted to the eccentric shaft 14 via the rotor 12 can be effectively increased (see FIGS. 5 and 6).

  As shown in FIGS. 5 and 6, in the configuration of each piston 22 of the piston cylinders 20 </ b> A to 20 </ b> D provided in the rotor 12, the outer component portion 22 a and the inner component portion 22 b are arranged to face each other with a required gap G interposed therebetween. The elastic member 50 is configured by a rod 50a having one end fixed to the inner component 22b, a spring 50b, and a rod insertion hole 59 drilled in the outer component 22a. Therefore, by these elastic members 50, the outer constituent portion 22 a of the piston 22 approaches the inner constituent portion 22 b against the elasticity of the elastic member 50 when the internal pressure of the partition chamber 16 of the cylindrical housing 10 increases. It is possible to increase the volume of the partition chamber 16 and contribute to an increase in the rotational driving force of the rotor 12.

Therefore, in the rotary fluid engine of the present embodiment, as shown in FIGS. 5 and 8, at the position of the leading vane 24 of the partition chamber 16A in the minimum volume state, the outer component 22a and the inner side of the piston 22 in this case An opening 60 is provided in one side wall 11a of the cylindrical housing 10 so as to correspond to the gap G formed with the component 22b. The opening 60 is connected to the piping of the first external fluid circuit 18 that communicates with the fluid outlet opening 35. With this configuration, when pressurized fluid is introduced from the first external fluid circuit 18 through the fluid introduction opening 36 into the partition chamber 16A that is in the minimum volume state , the outer component of the piston 22 When 22a approaches the inner component 22b against the elasticity of the elastic member 50, the fluid inside the gap G is led out to the first external fluid circuit 18 through the opening 60, thereby separating the partition. The volume increase of the chamber 16A can be achieved quickly.

In addition, at the position of the leading vane 24 of the partition chamber 16B in the maximum volume state , a cylindrical housing corresponding to the gap G formed between the outer component 22a and the inner component 22b of the piston 22 in this case An opening 62 is provided in one side wall portion 11a. The opening 62 is connected to an opening 64 provided on one side of the cylindrical housing 10 forming the adjacent partition chamber 16C via the external communication pipe 63. With this configuration, when the leading vane 24 is positioned with the partition chamber 16B having the maximum volume, the outer component 22a of the piston 22 approaches the inner component 22b against the elasticity of the elastic member 50. gap G being is communicated compartments 16B with the interior becomes a maximum volume state adjacent to each other via the opening 62, 64 and the external communicating pipe 63, the gap G is introduced fluid into the interior, the piston 22 The relationship between the outer component 22a and the inner component 22b is restored to the original state.

  As described above, in the rotary fluid engine in the present embodiment, the circular rotor 12 is eccentrically supported inside the cylindrical housing 10, and a plurality of piston cylinders 20A to 20D are provided on the outer periphery of the rotor. The piston 22 of these piston cylinders can be integrated with the piston 22 so as to be in contact with the inner wall portion of the cylindrical housing, and can have a simple configuration provided with vanes 24 that form a plurality of partition chambers 16A to 16D.

Therefore, in each of the partition chambers 16A to 16D , the fluid is sequentially moved with the rotation of the rotor 12 to sequentially flow out the fluid from the partition chamber that reaches the maximum volume state, and sequentially flows into the partition chamber that reaches the minimum volume state. provided with a first external fluid circuit 18 connected arrangement, in each piston cylinder 20A~20D chamber, by configured to circulate move sequentially piston cylinder 20A~20D chamber with the rotation of the rotor 12, the cylindrical In the plurality of partition chambers and piston cylinder chambers formed inside the housing 10, a recirculation path that can smoothly circulate fluid can be provided easily and simply.

  The fluid pressure means 40 is provided for the first external fluid circuit 18 that is connected to the partition chamber into which the fluid is reflowed, so that the pressure of the fluid flowing through the recirculation path is reduced. The rotor 12 is appropriately pressurized to generate a required rotational driving force in the clockwise direction in FIG. 5 and to exhibit a very effective function as a power engine.

  Accordingly, when the rotary fluid engine of the present embodiment having the above-described configuration is implemented, a housing configuration having a high airtightness, a fluid having a high viscosity index (100 or more), and oxidative stability as in the above-described embodiment. Using a naphthenic or paraffinic hydraulic oil with excellent emulsifying properties, anticorrosive properties, and antifoaming properties, and setting the pressurizing condition by the fluid pressurizing means to about 55 kg / cm2 or more, the diameter is about 0 .18 m and the total volume of the partition chamber set to about 3.8 m 3 can be driven to rotate at an average of about 800 rpm, and the average rotation axis (eccentric shaft) of about 110 kgf · m / It is possible to obtain a drive output of sec or more.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and many design changes can be made without departing from the spirit of the present invention. is there.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an embodiment of a rotary fluid engine according to the present invention, and is an explanatory diagram illustrating an overall schematic configuration together with a cross-section of a main configuration of the rotary fluid engine. It is principal part side surface sectional drawing of the piston cylinder part provided in the rotor which comprises the rotary fluid engine in FIG. It is a principal part schematic perspective view of the piston cylinder part provided in the rotor which comprises the rotary fluid engine in FIG. It is explanatory drawing which shows the coupling | bonding state of the rotor which comprises the rotary fluid engine in FIG. 1, the eccentric shaft which supports this, and the both-sides wall part of the cylindrical housing which surrounds these. FIG. 6 is a diagram illustrating another embodiment of the rotary fluid engine according to the present invention, and is an explanatory view showing an overall schematic configuration together with a cross section of a main configuration of the rotary fluid engine. It is principal part side surface sectional drawing of the piston cylinder part provided in the rotor which comprises the rotary fluid engine in FIG. It is a schematic perspective view of the rotor which comprises the rotary fluid engine in FIG. It is explanatory drawing which shows the coupling | bonding state of the rotor which comprises the rotary fluid engine in FIG. 5, the eccentric shaft which supports this, and the side wall part of the cylindrical housing which surrounds these.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cylindrical housing 10a Inner peripheral wall part 11a, 11b Side wall part 12 Rotor 14 Eccentric shaft 16A-16D Partition 18 First external fluid circuit 19 Second external fluid circuit 20A-20D Piston cylinder 22 Piston 22a Outside structure part 22b Inside Component 22c Rear side component 23 Roller 23a Roller receiving member 24 Vane 25 Spring 26 Guide rollers 27a, 27b, 27c Roller 28 Support member 29 Spring 30 Open groove 31 Fluid introduction opening 32 Open groove 33 Fluid outlet opening 34 Circumference Groove 35 Fluid outlet opening 36 Fluid introduction opening 37 Fluid storage tank 38 Spiral pump 40 Fluid pressurizing means 41 Pressurizing opening 42 Air venting means 43 Air vent opening 44 Double leaf cam coupling 46 Guide rod 46a One end 46b The other end 47 Guide hole 48 Spring Material 50 elastic members 50a rod 50b springs 51 and 52 the rod member 54 through hole 55, 56 a fluid flow control tank 57 the pipe 58 fluid regulation aperture 59 rod insertion hole 60 opening 62 opening 63 external communication pipe 64 opening

Claims (5)

The interior of the cylindrical housing (10) by an eccentric circular rotor (12) rotatably supported, a plurality of piston cylinder divided arranged equiangularly in the circumferential direction on the outer peripheral portion of the rotor (20A, 20B, 20C, 20D) and integrated with each piston (22) of these piston cylinders to contact the inner peripheral wall (10a) of the cylindrical housing to form a plurality of partition chambers (16A, 16B, 16C, 16D) , respectively. be provided vanes (24),
The vane (24) provided integrally with the piston of the piston cylinder in the rotor elastically feeds the roller (23) to the inner peripheral wall portion of the cylindrical housing via the spring (25) and the roller receiving member (23a), respectively. Configured with roller vanes set to abut against
The piston (22) of the piston cylinder in the rotor is provided with a guide roller (26) that elastically contacts the inner peripheral wall (10a) of the cylindrical housing behind the vane in the rotational direction ,
In the cylindrical housing, a continuous circumferential groove (34) is provided on the inner peripheral wall portion (10a) from the position of the leading vane of the partition chamber in the maximum volume state to the position of the partition chamber in the minimum volume state,
With respect to the piston cylinder chamber formed on the rear end side of the piston of each piston cylinder (20A, 20B, 20C, 20D), the first side wall (11a) of the cylindrical housing (10) The external fluid circuit (18) of the cylinder and the piston cylinder chamber in the minimum volume state communicate with each other to provide an opening groove (30) for introducing fluid, and the other side wall of the cylindrical housing 10 An opening groove portion (32) through which the pipe of the second external fluid circuit (19) and the piston cylinder chamber in the maximum volume state are communicated with each other in the portion (11b) to lead out the fluid ;
In each of the partition chambers (16A, 16B, 16C, 16D), the fluid is sequentially discharged from the partition chambers that sequentially move with the rotation of the rotor to reach the maximum volume state, and the piston cylinders (20A, 20B, 20C, 20D), a first external fluid circuit (18) piped to sequentially flow the fluid into the piston cylinder chamber that is in a minimum volume state ;
In each of the piston cylinders, the fluid is sequentially flown out of the piston cylinder chamber that is sequentially moved along with the rotation of the rotor to reach the maximum volume state, and the fluid is sequentially flowed into the partition chamber in the minimum volume state in each of the partition chambers. A second external fluid circuit (19) piped to re-inflow ,
Further rotary fluid engine in which the fluid to the compartments to be re-flowing, characterized in that the pressure of the fluid provided pressurizing fluid pressure means for antibody caused a required rotational driving force to the rotor (40). The pressure of the fluid is applied to the piping of the second external fluid circuit (19) connected so as to sequentially reflow the fluid from the piston cylinder chamber into the partition chamber, thereby generating a required rotational driving force in the rotor. The rotary fluid engine according to claim 1, further comprising a fluid pressurizing means (38) . The pistons arranged opposite to each other with respect to the boss portion of the rotor are coupled to each other by a rod member (51) passing through the boss portion in the same direction as the forward and backward direction of the piston between the pistons facing each other. 2. The rotary fluid engine according to claim 1 , wherein the rotary fluid engine is configured to move forward and backward relative to each other. A plurality of piston cylinders (20A, 20B) are arranged in a cylindrical housing (10) by eccentrically supporting a circular rotor (12) and being divided and arranged at equal angles in the circumferential direction on the outer periphery of the rotor (12). 20C, 20D), integrated with each piston (22) of these piston cylinders, and abutted against the inner peripheral wall portion (10a) of the cylindrical housing, respectively, and a plurality of partition chambers (16A, 16B, 16C, 16D). A vane (24) forming
The piston (22) of the piston cylinder provided on the rotor includes an outer component (22a) provided with a vane (24) and a required gap (G) via an elastic member (50) behind the outer component. And a rear-side constituent portion provided with a guide roller (26) that elastically contacts the inner peripheral wall portion (10a) of the cylindrical housing at the rear in the rotational direction from the vane. (22c) consisting of a three-part structure ,
Each of the piston cylinders (20A, 20B, 20C, 20D) has a communication hole (54) at a position close to the boss portion of the rotor, and the rear end portions of the pistons of the piston cylinders adjacent to each other. The piston cylinder chamber formed on the side is connected in communication ,
In the cylindrical housing, a continuous circumferential groove (34) is provided on the inner peripheral wall portion (10a) from the position of the leading vane of the partition chamber in the maximum volume state to the position of the partition chamber in the minimum volume state,
In each of the partition chambers (16A, 16B, 16C, and 16D), the fluid is sequentially discharged from the partition chamber that is sequentially moved with the rotation of the rotor to reach the maximum volume state, and the fluid is discharged into the partition chamber that is in the minimum volume state. An external fluid circuit (18) connected by piping so as to sequentially flow in fluid is provided ,
One side wall portion (11a) of the cylindrical housing is formed between the outer component portion (22a) and the inner component portion (22b) of the piston at the position of the leading vane of the partition chamber that is in the minimum volume state. Corresponding to the gap (G), an opening (60) communicating with the external fluid circuit (18) is provided , and the outer component ( Corresponding to a gap (G) formed between 22a) and the inner component (22b), an opening (64) that is connected to and communicates with an adjacent partition chamber via an external communication pipe (63). Provided ,
Further, a rotary fluid is provided with fluid pressurizing means (40, 38) for generating a required rotational driving force in the rotor by increasing the pressure of the fluid in the partition chamber into which the fluid re-inflows. engine. Pistons arranged opposite to each other with respect to the boss portion of the rotor are arranged so that the boss portion is located between the inner component portion (22b) and the rear-side component portion (22c) of the piston facing each other. 5. The rotary fluid engine according to claim 4, wherein the rotary fluid engine is configured to be coupled by a pair of rod members (51, 52) penetrating in the same direction as the advance / retreat direction, and to advance and retreat at the same time and in a correlated manner .

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