JPH05505008A - rotary piston machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to trochoroid designs, particularly to rotary pistons of the evitrochoid type. Ru. In these machines, some type of guide or follower drive mechanism is The piston rotates around the driven shaft in the opposite direction to the rotation of this drive shaft. is required to ensure that it rotates in a controlled manner. present invention relates specifically, but not essentially, to such tracking drive mechanisms.

The best known rotary engine of the trochoid design is the ebitrochoid type. This is a Wankel engine, and a piston follower for this Wankel engine The best and most widely accepted solution for It is bu. This Wankel engine is an evitrochoid chamber determined by the inner envelope. A piston is used.

A trochoid whose piston substantially corresponds to an ebitrochoid with a generating circle of 1=1 In a rotary piston machine of design, the follower drive mechanism produces a 2:1 ratio. I have to let it happen. For such machines, a gear-driven direct motion following R structure is used. There have been many proposals to use this type of drive. such a machine In some cases, the piston is defined by the outer envelope or the piston is For a given eccentric distance or stroke of t, the diameter of the gear is fixed. The static gear has a pitch circle diameter equal to four times the eccentric distance of the drive 7 shaft. Must have. Additionally, gears and pistons can be driven eccentrically. The drive shaft must be manufactured in two parts in order to be attached to the part.

In practice, these requirements can be effectively minimized by the reduced strength of the drive shaft. to the extent that it eliminates the possibility of constructing a multi-piston engine. Significant necking down and therefore weakening of the drive shaft causes the small pinion gear to This means that it may be required in the area of Also, rapidly changing gears Loads on gears tend to shorten the life of these gears and also increase gear wear. When the piston tends to come into contact with the housing, the piston The positioning accuracy of the engine becomes unacceptable.

In the 2:1 follow-up drive mechanism for the ebitrochoid type rotor no piston. One proposal to avoid the use of gears is provided by U.S. Pat. ．． No. 923.430. In these patents, eccentric elongated A rotating body is mounted on a continuous drive shaft and rotates with this drive shaft. one or more rotary pistons may be provided in the sleeve and one or more rotary pistons may be provided in the sleeve; The pistons are rotatably mounted together and one follower mechanism is mounted above for all pistons. installed in the sleeve. This follow-up drive mechanism includes a pair of offset eccentric members. It is growing. This pair of eccentric members is attached to the sleeve and the above or is attached so that it can rotate together with each piston, and the eccentric member are spaced axially from the piston. These eccentric members are connected to each guide machine. It can be rotated inside the structure. These guide mechanisms consist of relatively inclined straight rods. This allows you to travel back and forth on a straight path. This mechanism works on the following principle. In other words , any selected fixed point on the or each piston is with correct relative movement to the driveshaft and housing, i.e. Twice the angular velocity of the foot but in the opposite direction, when rotating, an ellipse relative to the housing Follow the path of shapes. If the selected point on the piston or the axis of rotation of the drive/yaft away from the eccentric axis of the piston by a distance equal to the eccentric distance of the piston from For example, the oval drawn on the housing by the fixed point on the piston is a straight line. this is a special case of an ellipse whose minor axis is zero. Therefore, the requested synchronous behavior To obtain the drive/yaft on the piston, i.e. from the axis of rotation of the piston Any point identified relative to the piston at a radius equal to the eccentric distance of It must be possible to move the drive shaft in a straight line from end to end. .

The proposal in the specification of the above-mentioned U.S. patent calls for a direct motion gear-driven tracking mechanism. Although it reduces the neck down of the drive shaft caused by Balance the large weight of the rotating body, which is mounted eccentrically so that it can rotate with the requires a fairly large counterbalance to Furthermore, the above eccentric rotating body The sleeve, which is rotatably attached to this eccentric rotating body, rotates each piston. Since the unbalanced amount of this eccentric rotating body is continuous through each addition Increased relative to the piston, the distance between the main bearings at each end of the engine may be very large. unknown. bearings between the end bearings) is not practical. single piss Even for a ton engine, the gap between the eccentric member and the piston is large. , requires well-spaced bearings for live shafts. Also, this design For multi-piston engines, all pistons are in one continuous slide. each trophite-shaped housing for the associated piston to be mounted on the tube; Corresponding plugs and ports must be angularly biased with respect to others. The engine is expensive and extremely difficult to assemble and service. Become.

The proposal in the specification of U.S. Pat. No. 4,086,038 is Similar, but with a follower drive in which the rotating body and sleeve are replaced with small-diameter shafts. It uses a moving mechanism. This small diameter shaft is compared to a split drive shaft. is eccentrically supported for rotation, and is connected to one or all of the pistons. All pistons and associated guide mechanisms can rotate together with the small diameter/yaft mentioned above. It is fixed so that All pistons must be on the one small diameter shaft mentioned above. As in the above proposal, for all pistons the illustrated There is only one follower mechanism equally spaced from the piston pair. and , all of these or excessive separation between the drive/yaft main bearings. It means.

In addition, the opposing parts of the drive shaft are moved out of phase by deflection under load. It is possible to move by moving. This load causes excessive friction and finally Seizure occurs and the piston collides with the housing.

An object of one aspect of the present invention is to obtain a Provides a follow-up drive mechanism that alleviates one or more of the above-mentioned disadvantages. It is to be.

According to a first aspect of the present invention, there is provided a rotatable drive shaft; It is mounted eccentrically on the foot so that it rotates in the opposite direction in the housing. and a piston having a 1:1 production circle. shaped and formed with an outer envelope, the housing is shaped like an ebitrochoid. a cooperating working surface for said piston that substantially conforms to an outer envelope; It is installed around the drive shaft so that it rotates eccentrically together with the piston. The piston tracking mechanism includes a pair of relatively offset eccentric members attached to the piston. Eh, the eccentric member is angularly offset with the rotation of the piston. Go straight along the aisle! Each guide restrained by each guide means so that said pair of eccentric members are rotatably mounted within said piston. a trochoidal structure that is immediately adjacent and fixed for rotation directly with it; A rotary piston machine is provided.

According to the first aspect of the present invention, the axial distance between the main bearings of the drive shaft is shortened. In consideration of the possibility of The axial distance along the shaft can be reduced considerably. Furthermore, the eccentricity mentioned above By fixing a pair of members directly to rotate with the piston, There is no need for one bearing sleeve extending entirely between the eccentric member and the eccentric member.

According to a second aspect of the invention, there is provided a rotatable drive shaft; and rotate the drive shaft in the opposite direction to the drive shaft. comprising a plurality of pistons eccentrically mounted on a shaft, each piston having one: It is an ebittrochoid shape with a generating circle of 1 and an outer envelope. and the housing has cooperating working surfaces for the piston, and the housing has cooperating working surfaces for the piston, and the housing has cooperating working surfaces for the piston. Each of the planes substantially conforms to the outer envelope of each of the above-mentioned evitrochoids, and It rotates eccentrically around the drive shaft together with the associated piston. for each piston, including a pair of relatively offset eccentric members mounted on the The eccentric member is provided with a piston following means having a following mechanism, and the eccentric member is configured to follow the rotation of the piston. As the guides rotate, each guide reciprocates in a straight line along an angularly offset path. a rotatably mounted rod within each guide member restrained by the means; - A tally piston machine is provided.

According to a second aspect of the invention, in a multi-piston machine each piston is It has a tracking mechanism that allows all pistons and drives/nafts to There is no need to mount one follower mechanism that can be rotated in succession. , this is The bearing for the shaft is installed between the adjacent piston and follower assembly. It means that you can move.

The above first and second aspects of the invention may be combined in one machine; It will be understood that they may be used separately.

The above eccentric member may be placed on both sides of the associated piston, but it is preferable to place it on one side. Yes. These eccentric members may, but do not necessarily, surround the drive shaft. They are preferably mounted so that they rotate together, e.g. via associated bearings. It's convenient. These eccentric members are connected to the piston with respect to the main axis of the drive shaft. can be rotated about the same axis with an eccentric distance of . The eccentric member is connected to the drive shaft. Where the piston and eccentric member rotate together, the drive shaft to which the piston and eccentric member are attached is The eccentric part of the foot can have a constant diameter, but if the piston and eccentric member The eccentric part of the drive shaft to be attached has a stepped crank bin, The part where the eccentric member rotates has a reduced diameter compared to the part where the piston rotates. It is advantageous to make sure that

Advantageously, said eccentric member is selectively separable from said associated piston; The axial length of the piston and eccentric assembly is reduced. this This facilitates the assembly of rotary piston machines, especially for the above-mentioned drive shafts. Each part of the foot has sufficient length to accommodate the piston and eccentric member separately. Allows for a shorter one-piece drive 7 yaf because only one piece is needed . If the above separable pairs of eccentric members are located on the same side of the piston can consist of a single casting. However, the pair of eccentric members mentioned above has a stepped shape. When placed on the same side of the piston installed in the crankbin of the along one axial plane (or two or more axial planes) It is necessary to be divided so that it can be installed on the crankbin .

In theory, only one eccentric member provides the necessary follow-up control for the associated piston. are required to do so. However, the axis of linear motion of each guide member is Since it passes through the main axis of the eve shaft, there is a period of uncertain movement, and the second eccentric part The guide members and linear guide means corresponding to the material are designed so that there are no dead points during the cycle. At this time, the above movement is controlled. The above linear motion is the maximum of the operating surface of the above housing. It is not necessary that it be along the axis and the minimum axis. This is because the above drive system Two eccentric distances of the piston centered on the main axis of the shaft and perpendicular to said main axis Any diameter of a circle with a radius of minutes will give the desired synchronous motion for the pistons above. This is because it is taro. However, the maximum and minimum axes or coordinates of the above operating plane are is the most preferred choice in engines. Because these two lines are The driveshaft from the tracking mechanism provides maximum accuracy in positioning the This results in the most compact engine. This is because it can be done.

The above-mentioned linear guide means is designed to maintain the straightness of each part as in the specification of the above-mentioned U.S. patent. Each one of the guide members provided with the guide block may be provided with a free opening and a free opening. The parallel opposed straight sides of the housing form a guide passageway for sliding into the housing. It is preferable to have a solid wall. Although it is not necessary, the angle is offset Preferably, the guide channels are at right angles to each other. The sides of the guide block above are accurate. If the guide is a square and one opposite pair of sides is worn, The do-pro, ri is rotated 90 degrees and the other opposite, paired side is replaced. It may be used instead.

All points of the guide block above run on a straight line, so the above is the guide block Any part of is constrained to move along a suitable straight line. Therefore, an alternative example is , one or more of the above blocks or Hau/Fugu. Shaped or straight pins and other of the above blocks or housings one or more corresponding grooves on the other side. By combining Watts, the above Each eccentric member is constrained to move in a proper straight line, including constraining the eccentric member. There are many other ways to bundle.

Preferably, the drive shaft is of one-piece construction. And multiply In stone machines, the drive shaft has multiple counterbalances for the pistons. Advantageously, a throw is provided.

Device offset in angle as a result of the eccentricity of the drive shaft above is an engine in which the substantially trochoidal working surfaces associated with each piston are aligned. The above combustion chamber and plugs and ports can be easily assembled in a It also ensures that all of the corresponding parts, such as the parts, are aligned.

Advantageously, in conjunction with either or both of the first and second aspects, or According to another aspect of the invention used without mating, the machine housing is modular. As for the piston assembly, the first monoyl is a bistonol type. and forming a cooperating working surface for the second module; It includes a core member and each guide member, supports each guide means, and also includes a third module. The wheel includes a second eccentric member and each guide member, and supports each guide means.

The above kite means includes parallel straight opposing walls of each part of the above housing. In fact, such a module arrangement considerably facilitates the machining of the walls. Up The sides of the working volume are connected to the second and third modules on either side of the first module. a second module formed by or more preferably associated with the first The port for the working volume of the first module of the piston assembly described in a third module of the adjacent piston assembly containing the stool; . The first piston assembly mentioned is the end or only piston assembly. piston assembly, the adjacent third module It may be passive in that it does not associate with the ton assembly. similarly , the third module of the piston assembly mentioned at the beginning is Is the only piston assembly or one of the adjacent piston assemblies If a port is included, an end module may also be included. Above drive shaft Advantageously, the main bearing of is supported within the third module. Above drive shaft The first thrust bearing is designed to eliminate any axial movement in the 2 end modules. One piece drive shaft and one piece In the case of base modules, each of the modules has a drive chassis when needed. It must be able to be displaced axially along the shaft. Therefore, it is placed in the third module. Any main bearings installed are large enough to allow the drive shaft to pass through. must be placed within the opening of the third module having a Or one more allows further modules to be placed around the drive shaft It may be divided into several parts.

Various embodiments of a rotary piston machine according to the invention are attached, by way of example only. This will be explained with reference to the drawings. In the accompanying drawings: Figure 1 shows the first aspect of the invention. Through a schematic depiction of a first embodiment of a single-piston low-repetition engine, FIG.

FIG. 2 is a partial sectional view taken along line 2-2 in FIG.

FIG. 3 shows a second embodiment of the single-piston rotary piston engine according to the first aspect of the invention. FIG. 3 is an axial cross-sectional view of the embodiment.

FIG. 4 is a partial sectional view taken along line 4--4 in FIG.

Figure 5ANC is an eccentric assembly used in the rotary piston engine of Figures 3 and 4. FIG. 5A is a view in the X direction of FIG. 58, upside down; a view similar to the eccentric assembly shown in FIG. 3, except that the FIG. 5C is a partial cross-sectional view taken along line AB in FIG. 5A.

FIG. 6 is a view similar to FIG. 5A except showing a modified configuration of the eccentric member. It is.

Figure 7A is a partially cut-away compatible side view of a guide block used with the eccentric assembly described above. It is a diagram.

FIG. 7B is a side view of the guide block of FIG. 7A viewed from the right side.

FIG. 8 shows a modification of the guide block portion of FIGS. 7A and 7B.

FIG. 9 schematically shows another embodiment of the guide block.

FIG. 1O shows a single piston row clip according to the first aspect of the invention in modular form. FIG. 3 is an axial sectional view of a third embodiment of the ton engine.

FIG. 11 shows a map according to the first and second aspects of the invention using the module of FIG. 1O. FIG. 2 is an axial cross-sectional view of a multi-piston rotary piston engine.

Figure 12 shows the part of the engine in Figure 11 when the axial sectional view in Figure 11 is viewed from a 90° angle. FIG.

FIG. 13 is a detailed view of the set of fool assemblies shown in FIG. 12.

Figure] 4 is inverted to accommodate the modified crankshaft. FIG. 10 is an enlarged view of some of the 10 modinirs.

1 and 2, a rotary piston machine 10 is shown with a crankshaft 14 A housing 12 is provided. The crankshaft 14 has a shaft 15. Slide bearings provided at intervals in the axial direction so as to be able to rotate around the 6.1 It is supported by s. The housing 12 is modular, with a first module The module 20, the second module 22, and the bearings 16, 18 are respectively installed. end modules 24, 26 attached thereto.

The crankshaft 14 has a stepped crank pin 28. this clan The cup pin 28 has a first portion 30 having a relatively large diameter and a second portion 30 having a relatively small diameter. 2. The second portion 32 is connected to the first portion 30 and the crank web 3. It extends between 4 and 4.

The crank pin 28 has an eccentric distance a with respect to the axis 15 of the crankshaft 14. It has a shaft 29 having a.

The large diameter portion 30 of the crank pin 28 is connected to the first module of the housing 12. A rotary piston 36 is supported within the ring 20.

The piston 36 is rotatably mounted to the crank pin portion 30 via a bearing 38. It is listed. Said piston 36 is schematically shown in FIG. 2 by a dashed line. As such, it is cardioid in nature (heart-shaped). Therefore, the piston is It is of the ebittrochoid type with a 1:1 generation circle determined by the outer envelope. Ru. This piston has a non-bent side 40, but this side has a bend. You can stay there.

The piston 36 moves around the rotating crankshaft 14 in a working volume 44. Rotate with. This working volume 44 is circumscribed by the modular 20 of the housing 12. The enclosure is defined by the modules 22, 24 of the housing 12 on both sides. Mo Joule 20 defines a cooperating surface 46 for the piston. This collaborative movement surface 46 approximately corresponds to the outer envelope of the eccentrically rotatable cardioid piston 36. do. The outer circumference 37 of the piston 36 roughly corresponds to a mathematically accurate trochoid. The cooperating surface 46 is also shaped accordingly. The piston 36 , within the housing module 20 as it rotates around the crank pin 28. Opposed radial seams attached to each bend of cooperating surface 46 I have been in constant contact with Le 48.

The above-described shape of the piston 36 and cooperating surface 46 is such that the piston is connected to the crankshaft. rotates on the crankshaft 14 at twice the angular velocity of the engine, but in the opposite direction. request something. The required synchronous movement is achieved by eccentric assembly 5o. can be done. The eccentric assembly 50 is spaced apart axially and angularly. A pair of eccentric members 52 and 54 are provided. These pair of eccentric members 52.5 4 are arranged on their respective axes so as to rotate together with the piston 36 around the drive shaft 14. is attached to. Each of the eccentric members 52, 54 is connected to the crank pin 28. is eccentric from the crankshaft axis 15 by the same distance Ha. has an axis remote from axis 29 of. Therefore, the eccentric member 54 has an axis 42. , the eccentric member 52 is conveniently located on the axis 15 of the crankshaft. Above eccentric a The assembly 50 is disposed immediately adjacent to the piston in the axial direction, and is located between the main bearings 16° and 18. The axial distance is kept to a minimum. “Axial direction” used in relation to eccentric members The term "separately apart" simply means that they are not radially aligned. It's just that. These eccentric members may be immediately adjacent in the axial direction or may be They may be slightly apart, such as.

Eccentric member 52 is rotatably housed in first guide block 56 . this guide Block 56 is secured by opposed guide surfaces 58 within module 22 of the housing. and is linearly reciprocated in the horizontal direction (FIGS. 1 and 2). The eccentric member 54 is The corresponding guide plate 60 is rotatably housed. This guide block 60 The opposed guide surfaces 62 in the module 26 of the housing 12 (one shown in FIG. (shown in Figures 1 and 2), it is caused to reciprocate linearly in the vertical direction (Figures 1 and 2).

Since the deflection is provided in each module, the opposing guide surface 58.62 can be easily processed as desired.

The guide pro 56.60 can reciprocate linearly along each path.

This is because the associated eccentric member moves the crank from the shaft 29 of the crank pin 28. This is because the pin can be rotated around an axis located at a distance a from its eccentricity. . Said guide block 56,60 defines the outer envelope of the piston which defines the cooperating working surface 46. Although it is not necessary to make a straight reciprocating path along the long and short axes of the contact line, as shown in Figure 2, This is a good thing. This is because it is a problem in the positioning of the piston. Provides maximum precision and maximum support from the eccentric assembly 50 to the crankshaft. This is because it can be the most compact engine. Guide block 5 There is no need for the 6.80 to reciprocate at right angles to each other.

The above-described features of the eccentric member 50 and the guide mechanism are all of the embodiments described herein. For convenience, these will not be described repeatedly.

To assemble the rotary piston machine 10 of FIGS. 1 and 2, a crank /The napht 14 is divided into two parts at one end or the other end of the small diameter part 32 of the crank pin. alternatively, the eccentric assembly 50 is in position 51. It must be separable from the piston 36, and it must split approximately parallel to the axis. You will understand that you must do so. For convenience, the above rotary piston machine Although the opening for the engine is not shown in Figures 1 and 2, this machine used as a driven or driving machine, such as a hydraulic or pneumatic engine It's easy to do that.

The eccentric assembly 50 can rotate ten degrees on the small diameter portion 32 of the crank pin 28. It will be installed like this. This allows the motor to run faster than when using a stepped crankbin. Can be made compact in the radial direction. However, when not using a stepped crank bin In this case, the eccentric assembly can be integrated with the piston 36, and the eccentric assembly can be integrated with the piston 36. axially compactness can be achieved by placing the This has the advantage that the distance between the crankshaft bearings 16 and 18 can be minimized. .

3 and 4, a single piston system according to the first aspect of the invention An embodiment of a rotary piston engine 64 is shown. This is the machine shown in Figures 1 and 2. It has many of the features of Machine 10. For convenience, the example in Figure 3.4 and the In the examples, the same or similar parts may be used with respect to machine 10 of FIGS. 1 and 2. Use the same reference numbers as above.

The rotary piston engine 64 shown in Figure 3.4 is water cooled. and Water cooling grooves 66 are provided in the modules 22, 24 of the housing 12. Also, Partially shown in FIG. 3 is a port 68 (shown in phantom) for the working volume 44. ). This port 68 is provided in the module 24. moginir 2 0 is for mounting a spark plug or other ignition device (not shown). It is equipped with 70 (Po with a mountain). This port) 70 represents the combustion within the working volume 44. It leads to room 72. The piston 36 is hollow to minimize eccentric rotation. , and the crankshaft 14 at one end supports a balanced flywheel 74. , the balance weight is optimized to account for the reduced eccentric mass rotating on the crankpin. It is small. Further, at the other end, the crankshaft 14 is connected to an accessory pulley 7. 6 is supported. This accessory pulley 76 is attached to the belt ( (not shown). This Pbouri-76 is also a rotary machine. Adjust the amount to some extent.

The crank pin 14 has approximately the same shape as the crank pin of the rotary piston machine 10. It has a state of affairs. The eccentric assembly 50 is connected to the crank via a sliding bearing 78. It is rotatably attached to the small diameter portion 32 of the pin 28. rotor 36 is on top It is rotatably attached to the large diameter portion 30 of the crank pin. This eccentric assembly The bully 50 is secured by six angularly spaced bolts 80 (only one shown). It is fixed to rotate together with the rotor 36. The above bolt 80 is the rotation axis , through the rotor parallel to the The threaded opening 82 engages the threaded opening 82.

The flange 84 is a tight fit in a corresponding recess 86 in the adjacent side wall of the piston 36. ing.

As clearly shown in FIG. 5, the eccentric assembly 50 is divided by diameter. It is formed in two separated parts 88,90. These parts are Its center is placed on Lee's axis of rotation.

The two portions 88,90 are arranged in two pairs to receive pins 96 on opposite surfaces thereof. It has recesses 92, 94 to ensure proper alignment of the two parts. Up The two parts 88,90 of the eccentric assembly are fasteners 98,1 with screw heads. It is closed by 00. The tightening fittings 98, 100 are first eccentric members. 52 and the corresponding threaded openings 102, 104 in the second eccentric member 54. Screw them together. The openings 102, 104 are located between the two parts of the eccentric assembly. Extends at right angles to the opposing faces of the minute 88.90. The part within the above part 88 has a dead end at one end. The open end portion of the portion 90 is shouldered to provide an associated fastener. The head 106 of the tool is housed therein.

The heads 106 of the fasteners are sufficiently recessed so that they can be assembled easily. -50 do not protrude from their respective openings when assembled.

When assembled, the eccentric assembly 50 includes a passage 108 from end to end. Form. The crank pin portion 32 extends through this passage 108. The above street The portion of channel 108 axially remote from flange 84 is grooved. , a sliding bearing 78 is accommodated. This 78-piece sliding bearing is the eccentric assembly mentioned above. Corresponding to each half of said passageway 108 defined by portions 88.90, two It is formed into two parts. The eccentric members 52, 54 are adjacent to each other and are eccentric. The member 52 is immediately adjacent to the flange 84 and is connected thereto by a short web 110. It is connected to the flange 84. Each of the eccentric assemblies 52, 54 has an outer periphery. It has an annular portion 112. This outer circumferential annular portion 112 is slightly recessed. and receive respective guide blocks 56,60. The openings 102 and 104 are These concave outer peripheral portions 112 communicate with each other.

Figure 6 shows an alternative eccentric assembly 50'. Here, the only change is , align the locating pins 96 with the opposite surfaces of the eccentric assembly portions 88, 90 precisely. This is because the joint 114 is replaced with a sawtooth joint 114. 2 parts 88' , 90' are also schematically shown fastening fittings 98, 100 with screw heads. Therefore, it can be matched. In all other respects, this eccentric assembly 5 0' can be equal to the eccentric assembly 50 described above.

Now referring to FIGS. 7A and 7B, one of the guide blocks 56 and 60 mentioned above It is shown. These two guide blocks are identical, and for convenience, one guide block Only lock 56 will be described in detail.

The relatively flat guide hook has a central opening 116. The size of this opening 116 The diameter is large enough to provide a smooth fit on the circumferential surface 112 of the eccentric member 52 without any slack. It is. The guide block 56 has opposing pairs of parallel flat edge surfaces 118. It is a rectangle with 120.

At least surface 120 of the edge surfaces is preferably precisely machined. to provide the necessary sliding surface to engage the housing 12. convenient thing In this case, the guide block 56 is square, and both elbows 118 and 120 on the opposing surfaces are precisely shaped. Since the pair 120 is machined, if the pair 120 wears out, the guide block 56 rotates 90'' in the axial direction, the other pair 118 rotates on the slide surface. It can be used to make.

The guide block 56 is divided diagonally, as shown by the line 122. The parting line has a precision alignment device built into it. This alignment of hearts The device consists of stages 124 in FIG. 7A. Alternative saw tooth alignment device A location 126 is shown in FIG. The two parts of the guide block 56 They are fastened together by a fastening fitting 128 with a screw thread. This fastening fitting 1 28 are placed in corresponding openings 130. This opening should be fitted with the head of the above-mentioned fastener. A groove is provided to accommodate 132.

For low-performance, low-speed machinery such as static engines and pumps, it is recommended that the A guide block consisting of two parts, as shown schematically in Figure 9, for example Something like this might be appropriate.

These alternative guide block parts may be joined by suitable fasteners. That's fine, and you can stay apart.

The guide block 56,60 is formed in two parts. these two parts For placement on the recessed outer periphery 112 of the eccentric member 52,54. Ru. The assembly of the engine 64 will now be explained.

Referring again to FIGS. 3 and 4, the single piston rotary piston engine 6 4 is assembled as follows. First, slide the above two parts 88 and 90 onto the shaft. Grasp each part of the receiving insert 78 and make sure these parts are aligned with the locating pins 96. Install it on top of the crank bin part 32, making sure that it is lined up correctly. By rotating the eccentric member 50, the eccentric member 50 is attached to the crank pin portion of the crank/naft 14. Installed at minute 32. These two parts are then tightened with a 98° 100° tightening fitting. and are tightened together. The above-mentioned fastening fitting 98 and the corresponding opening 104 are Note that it is longer than 100 and its aperture 102. Module of housing 12 The levers 22 are conveniently provided with removable, parallel opposing It has a slide member 134. These slide members 134 are 2, each fastening fitting 136 (only one is shown) ) is fixed to it by These slide members 134 are A parallel guide surface 58 for the hook 56 is formed and made of a suitable low friction material. I can do it. With the module 22 removed from the slide member 134, axially move this module over the web 34 of the crankshaft 14. When moving the module toward the crank pin portion 30, do not tilt or tilt this module. At the bottom of the eccentric assembly 50 of FIG. 3 by rotating the eccentric member 50, By positioning the eccentric member between the flange 84 and the eccentric member 54, 52.

Next, the above-mentioned IDOPRO assembly 56 is assembled onto the eccentric member 52, and the above-mentioned tightening fitting 12 is assembled. 8 is screwed into the opening +30 and fixed. The slide member 134 is located above the Once fully aligned with eccentric member 52 and cooperating guide block 56, It simply snaps into place and is securely secured to the Modineal body by the fasteners 136. can be determined. The module 22 includes a ring seal 138.

This ring seal 138 seals the eccentric assembly during all rotational stages of the eccentric assembly. Engages flange 84 of assembly 50. This ring seal is module 22 It can be made separable.

Since engine 64 has only one piston and one eccentric assembly, , the piston 36 and the module 20.24 are connected to the guide block 60 and the module. It can be installed before or after the cable 26. The guide block 60 is The eccentric member 54 is attached in the same manner as the door block 56 is attached to the eccentric member 52. Attach to.

When the fastener 128 is sufficiently tightened, the sliding bearing 18 is attached to the end module 2. 6, slide it on the corresponding journal of crank/naft 14, and attach the kite. The surface 62 is radially aligned with the guide block 60. This end modineal 26 is A removable slide similar to the slide member 134 having the kite surface 62 A door member (not shown) may also be provided. Then, the flywheel 74 is screwed The crankshaft is rotated by engaging the bolt 140 with the cooperating portion 142 of the shaft. It is fixed to the foot 14.

inserting the plain bearing 38 into the piston 36 until it engages the shoulder 144; The piston is then positioned on the crank pin portion 30. Prior to this operation, An annular seal is provided in a corresponding groove 146 in the piston side wall adjacent the module 22. It might happen. With this bearing 38 in contact with the side 144, the eccentric assembly The flange 84 of the bully 50 is inserted into the recess 84 in the piston side wall with an interference fit.

Then, with the openings 82 of the piston and the flange 84 aligned, the screws are attached. The piston can be secured to the eccentric assembly by threading the fastener 80. can. Correctly aligning the pistons with the eccentric assembly 50 is achieved through guide blocks. to ensure the correct relationship between the movement of the piston 56.60 and the position of the piston 36. is necessary.

Once the piston is rotatably secured to the crank/naft, the piston is retracted. The main module 20 is installed in the predetermined location by attaching the main/rail 48 (Fig. 4). be positioned. Then, in the annular piston side wall grooves 148 and 150, respectively. The end module 24 with the main bearing 16 is attached to the coupled crankshaft. Attach to Senal. The relative order of modules 20.22.24.26 is: It is maintained by a threaded fastener 152. This screw fastening fitting 152 is modeled as shown in FIG. Although shown formally, it is omitted in Figure 3 to make the diagram easier to understand. After that, place the pulley 76 on the crankshaft and tighten the threaded bolt 154 on the shaft. It is fixed by engaging with the corresponding threaded portion 156.

The single-piston engine 64 shown in Figure 3.4 has one combustion chamber 72 and has a corresponding working volume. However, this working volume and combustion chamber is and combustion chamber 72 with associated ports at the bottom of Modineal 20 in Figure 3.4. , can be easily doubled by providing the port 70 and the combustion chamber 72 opposite each other as shown in the figure. It would be possible to do so. This is as shown in the example of FIG. be. The comparison between the crank 84 and the eccentric member 52 of the eccentric assembly-50 The short web 110 feature reduces the length of the crankpin 28, thus reducing the bearing 1. Shorten the distance between 6.18. Eccentric assembly 50 can be separated from the piston and attach the eccentric assembly to the crank bin 28 from the radial direction. Formed in two parts to allow for eccentric assembly or positioning The crankbin portion 32 is connected to the crankbin portion 30 supporting the piston 36. This allows for a considerably smaller diameter compared to the crank pin. This significantly reduces the eccentric rotating mass supported and reduces the overall dimensions of the engine. I can do it.

Now, as shown in Figure 10, one piston, two combustion chamber rotary pistons Engine 158 is a modified version of Engine 64 that incorporates many similar parts. , for convenience, the same reference numbers are again used for the same or similar parts. The above The engine 158 is in the form of a module and includes a plurality of throws. Increase the length of the crank shift 14 and repeat the above module so that This allows multi-piston engines to be easily assembled. child A four-piston engine/engine +60, such as the one shown in FIG. 11 (to scale), is shown in FIG. This diagram Therefore, the monoyl 20.22.26.162 in Fig. 10 is the rightmost model in Fig. 11. Same as Nonyl 20, 22, 26, 162, and the above engines 158 and 160 It can be seen that the monoyl 24 on the opposite side of each is also the same. Also, the above model Nonyl 20,22.162 is applied to the engine 160 for each of the four pistons 36. It will also be understood that it is repeated. Eccentric assembly 50, cooperating parts and associated parts such as bearings 18 are also repeated. Therefore, for convenience, Figure 1 1 engine 160 is primarily described with respect to the single piston type 158 of FIG. It will be done. In addition, many parts of the Engine:/158 and 160 are mounted on eccentric assembly 5. 0 and the corresponding in the engine 64 of FIGS. 3 and 4 including the guide block 58.60. Since these parts are substantially similar to each other, it is important to note that they are Details regarding the above engines 158 and 160 will be given only if they differ from the corresponding parts. It can be stated.

Referring primarily to FIG. 10, the engine includes a split bearing 18 and a corresponding split shaft. By placing the strike plate 164 on the work/do/chinar of the crank/naft 14, So, it can be assembled. The module 26 is shown in FIG. 10 (and FIG. 11). , the monomer is passed through the entire length of the crankshaft 14 from the left side. It has an annular flange 7168 that forms an axial opening of sufficient size to The annular flange then rests on an annular shoulder 270 of the bearing seat '164. It will be posted. (multiple ports) 172 (only one shown) 26 is fixed to the bearing seat 164. Alternatively, the bearing 18 and the bearing seat 164 may be The module 26 is bolted to the bearing seat. Thereafter, the journal 166 is slid onto the bearing. above jar The attachment of the module 26 to the null 166 is similar to that of the other modules of the engine 158. This is carried out after the assembly of the module.

The module 26 is connected to a cooperating guide block 60 of the eccentric assembly 50. forming opposing sliding surfaces 62 for the module; Because they are on the end faces of the lugs 26, they are conveniently and easily machined. The above sura The opening 174 in the module 26 forming the side surface 62 is formed by the crank pin. is large enough to accommodate a web 34 of . Or the slide surface 62 , such as guide member 218 shown in FIG. 12, which is similar to guide member 134 described above. formed on a guide member.

The eccentric assembly 50 in the engine 158,160 is mounted on the flange 8. 4 has a somewhat smaller diameter to facilitate assembly of the various parts of the engine. and in that it has an external thread 176 for reasons explained later. , slightly modified compared to the eccentric assembly in engine 64 above. There is. The two parts 88,90 of said eccentric assembly are attached to said crankshaft. arranged around the reduced diameter crankbin section 32 of is secured to the bearing insert 78 at. Then, the guide block 60 opens the opening 1 74 about the eccentric member 54 in the manner previously described, and the guide block The lock 56 is fixed correspondingly to the eccentric member 52.

Module 22 can be easily machined or machined as previously described with respect to FIGS. has a generally rectangular axial opening that is cast. The guide member 134 mating fasteners to form a sliding surface 58 for the guide block 56; 136 (only one shown) secured as shown in said opening. It will be done. The guide member 134 is connected to the module 2 to form a shoulder 180. It protrudes slightly radially inward from the main body of No. 2. However, the insert 134 is Even in the fixed position, the opening in the module 22 is of sufficient size. , move the above Modineal over the crankshaft 14 from the left side of the figure, and The guide block extends over the reduced diameter flange 84 of the eccentric assembly 50. 56. When module 22 is in place , a split annular seal ring holder and sealing element 182 are located within the opening of the module. It is disposed abutting the shoulder 180.

The internally threaded engagement ring 184 is then connected to the eccentric assembly by screws 176. It is screwed into the flange 84 of the assembly 50, and the ring 184 and the flange are screwed together. A cooperating recess in the flange 84 allows the engagement ring to tightly engage the flange. A plurality of lock pins 18 are arranged in a negative line and protrude from the ring 184. 6 (only one shown). substantially cardioid (heart-shaped) A recess 86 within the piston 36 is formed to tightly accommodate the ring 184. , and having a blind opening therein to tightly receive the protrusion of the pin 186. are doing. An annular seal suitably received within the annular groove 146 and a shaft in place. The piston with the receiver 38 is designed so that it is received in the large diameter crankshaft section 30. the crankshaft until it engages the ring 184 and pin 186. Being slipped on the floor. Multiple threaded fasteners 8o keep the piston eccentric The eccentric assembly 50 is configured to rotate accurately coaxially with the assembly 52. Fixed.

Working volume 44 substantially corresponding to the outer envelope of the cardioid piston 36 The module 20 forming the above-mentioned crank/naft and piston is then The slide joins the monoyl 22 forming one side of the working volume 44 . the above The pistons in the engines 150, 160 are located within the double ring working volume 44. two, rotating and having corresponding spark plugs or injection boats 70. Opposed combustion chambers 72 are provided within the module 20.

Suitable seals fit into grooves 148, 150 on the opposite surface of the piston. It is being The seal 150 is provided within the reinforcement plate 151 of the piston. The second split sliding bearing 18 and the bearing seat 164 are mounted on the crankshaft 14. located above the null 188.

In the engine 64, the end module 24 is on one side of the working volume 44. and includes a boat 68 for the working volume 44 and supports the bearing 16.

The same module is used for single-piston and multi-piston engines Due to the modular structure, the end modules in the engines 158 and 160 are The module 24 supports the bearing 16, while the intermediate module 162 supports the module 20. including boats 68 for two working chambers on adjacent sides of the working volume 44. supports the bearing seat 164 and the sliding bearing 18.

The module 162 is accommodated in a corresponding recess 160 of the second bearing seat 164. and a plurality of fasteners 172 (only one shown). ) fixes the second bearing seat 164 to the flange 190.

The boat 68 in the intermediate module 162 is shown schematically; The module incorporates a recess 192. This recess 192 The engine 158 has no function other than weight reduction, but the multi-piston engine 160 for the guide block 60 of the next adjacent eccentric assembly 50. a sliding surface 62 (or a support surface for a suitable sliding member). It is necessary from

The end module 24 is then butted against the middle module 162 to complete the entire assembly. are secured together by a plurality of ports 152 and cooperating nuts 194. Ru. It is said that various modules 20.22.24゜26.162 are arranged in a line. This is absolutely necessary, and this has been achieved to some extent by Bolt 152. However, locating studs and corresponding four parts are installed on various sides of the monoyl. You will realize that you are being ignored.

In the engines 158, 160, the bearing 16 is connected to the crankshaft. The flange 1 of the crankshaft 14 is 96. The above looseness is the engine are provided for convenience to facilitate assembly. Above bearing assembly The outer ring 198 of the assembly 16 is attached to the shoulder of the module 24 with an end cap 2°○. is fixed in place by the This end cap is attached to the above motor by means of bolts. It is fixed to Joule 24. The inner ring 204 is located at the end of the crankshaft 14. and by means of a shaft 154 received in the threaded end 156. The crankshaft flanges are biased by the thrust member 206. is biased toward the engine 196. The thrust member 206 is attached to a pulley 76 (see FIG. 3 but not shown in FIGS. 10 and 11) or corresponding The power take-off device (including the propeller) is coupled to the annular flange 208 to which it is fixed. ing. At the other end, a flywheel 74 (not shown in FIGS. 10 and 11) ) or an auxiliary gear or element is located at the end 2 of the crankshaft. 10 and provided with a plurality of webs 214. protected. The web 214 receives a bolt 216 and the bolt 21 6 fixes the housing 212 to the end module 26.

The flywheel used with the single-piston engine 158 can back up the engine. used to balance, but as before, the balance is above the eccentric assembly -50 and accommodated in the reduced diameter portion 32 of the crank pin 28. Considering the cooperating parts involved, this would be minimal. However, in Figure 11 Thus, the engine 160 does not require the flywheel or has minimal torque. Essentially balanced by four pistons to provide only balanced movement It is. For convenience of illustration, the engines 160 are shown at 180 degrees from each other. With adjacent crank pin 28 and corresponding piston 36 having an angle of It is shown. In practice, this applies to each 180 degree rotation of the crankshaft. (in Figure 11), the two power strokes and engine This would yield an engine with two power strokes in the lower part of the engine. preferred In older systems, the crankpin fires every 45 degrees of crankshaft rotation. is positioned on the crankshaft so that the process occurs. To achieve this, The crank pin performs eight ignition strokes (each combustion stroke) per 360 degrees of crankshaft rotation. 1 for every 45 degrees of rotation of the crankshaft, so that offset by an appropriate angle to achieve two ignition strokes. In addition, the above In engine 180, each piston 36 has an associated eccentric assembly 50. and a corresponding module for each piston and eccentric assembly and the exhaust boat 68 and the boat 70 are all aligned. , allowing for simple manifolds and easy manufacturing and repair.

In Figures 10 and II, several fluid flow passages are shown and described. Not allowed. However, to make the drawings easier to understand, all sectioned parts are is not given hatching.

FIG. 12 shows the axial direction of the portion of the engine 160 taken at right angles to the cross section of FIG. 11. It is a cross section. FIG. 12 is enlarged compared to FIG. 11, and the engine 16 is clearly illustrates one possible sealing arrangement for piston 36 at 0 . This view is from one of the intermediate modules 162 to the next. Yes, the sliding surface 62 for the guide block 60 of the eccentric member 54 is Each guide member has the same shape and characteristics as the guide member 134 for the id block 56. 218 shows an example of a modification being made on top of FIG.

The guide member 218 is connected to each intermediate module by threaded fasteners 220. 162. Typically at least two such fasteners 220 are provided for each gun. used in conjunction with the id member 218.

As discussed with respect to Figure 2.4, each substantially cardioid piston 36 has a During rotation about the crankshaft 14, at two places, namely the cardioid of each module 20 , which determines the working volume 44 at the double-layer bend of the outer envelope of is in constant sealing contact with the wall 46 of. Seals 48 are provided at these locations, This provides a sealed contact. These seals 48 are shown schematically in Figure 2.4. A preferred form of radial seal 222 is a rotary piston machine. Forms part of the subject matter of our co-pending patent application entitled ``Seals for 13 in detail. Also shown in detail in FIG. Sidewall seals that cooperate with each radial seal 222 on each side of the piston Assembly 224. This side seal assembly 224 is also our co-worker. It forms part of the gist of the patent application. The content of the above co-pending patent application is shall be deemed to be incorporated herein for purposes of use.

The radial seals 222 are all the same, and the sidewall seal assembly 222 is the same. All the assemblies 224 are also the same. FIG. 13 shows the radial seal 222. 1 and an enlarged view showing one complete seal assembly 224. piston 36 has a straight cross-section all around it, including the cardioid portion 40. The radial seal 222 has an upper surface 226 that projects into the working volume 44. and has a corresponding sealing surface 228. This sealing surface 228 Between the modules 162 and 22, the working volume 4 within the housing module 20 is It extends over almost the entire width of 4. This means that the wedge-shaped intermediate seal member 234 a seal assembly comprising a pair of outer members 230, 232 with a Therefore, it can be done reliably. Each of the members 230, 232, 234 is As schematically shown in Figure 2.4, Alseal 48 has a narrow, almost rectangular cross section. The members 230, 232, 234 arranged in one row are the pairs in the module 20. Accordingly, it is accommodated in a narrow recess 236. This recess 236 has adjacent modules on both sides. is open to the public. The sealing surface 228 of the radial seal 222 preferably has a cross-sectional shape. It is convex.

The members 230, 232 have inclined inner end surfaces 23B, 240 facing each other. ing. The angle of inclination corresponds to the taper of the wedge-shaped member 234. each inside The inclination angle a of the end surfaces 238 and 240 may be within the range of l to 45°, for example. Wear. The length of the sole surface 228 determined by the members 230 and 232 is at least When the seal is new, these parts at the sealing face, as shown. such that the distance between them is minimized. Formed by the above members 230.232 The portion of the sealing surface 228 that is not covered is formed by the wedge-shaped member 234. It will be done. The leaf spring 242 connects the sealing members 230, 232, 234 and the housing. It is accommodated in the recess 236 between the module 20 and the members 230, 2. 32 between opposing shoulders 244 . The above leaf spring is attached to the housing module. 20 and wedge-shaped member 234 to bias all of these members. While engaging the piston surface 226, the seal members 230, 232 are Laterally biased into sealing engagement with respective adjacent modules 162.22. It is eel-shaped.

The sealing members 230, 232, 234 are made of known sealing materials, such as spheroidal materials. It can be made from cast iron or a suitable sintered material containing a round graphite, but a wedge Any portion of the shaped member 234 that protrudes from the main sealing surface 228 is connected to the piston. The member 230, It is preferable that the wear resistance is lower than that of 232.

Piston 36 may tend to wobble slightly during its rotation. and, When vibrating, it will slide across the sealing surface 228, but the There is no tendency to lift the rail member.

The seal members 230 and 232 face the combustion chamber 72 of the housing module 20. side (or one housing module, such as engine 158.160) If there are two combustion chambers 72 in the combustion chamber, grooves 246 are provided on both sides of the sealing member. The combustion gas is then passed between the wall of the recess and that side of the sealing member. Therefore, the pressure of gas from the combustion chamber is applied to the portion 2 of the recess 236 behind the seal member. Facilitate quick assembly to 48. The concentration of pressure in the space 248 is biasing the seal member against the piston surface and the side wall of the adjacent module 22, 162; to improve the sealing effect.

Passageways 250 connect each adjacent housing module 162.22 to 224 on both sides, and the combustion gas pressure - biasing the rods into better engagement with the respective side walls of the piston;

In FIG. 13, only one of the associated side/rue assemblies 224 is fully shown. However, since the two opposing seal assemblies 224 are mirror images of each other, For the sake of convenience, only one will be described in detail.

Piston 36 has a peripheral side seal 252 of known design. This surrounding area The ID seal 252 is provided in an outer annular groove 146, 148 in its side wall, associated with adjacent side walls of the working volume 44 defined by each module 22,162. match. Each peripheral side seal 252 includes two annular seal members. this The annular seals are mounted on the annular support member 254 within their respective grooves 146 or 148. It is supported along with The spring 255 engages this support member 254 and The roll assembly 224 is biased axially outwardly and engaged with the side wall.

The peripheral side seal 252 allows combustion gases to flow around the sides of the piston 36. prevent leakage from one or other combustion chambers 72 to the low pressure side of the opposite working volume 44. It is for. For this purpose, the or each combustion chamber 72 is equipped with a piston. Since the peripheral side seal 252 is located close to the outer peripheral edge 226 of the It should be provided on the side wall of the piston as close to the outer periphery as possible. But long However, for practical reasons, the peripheral side 7-rule 252 is located at the outer peripheral edge 226 of the piston. You need to be able to retreat without getting caught. This connects the peripheral side seal 252 and the radius. Combustion gases will leak along the sidewalls of the piston between the alseals 222.

The side seal assembly 224 is designed to reduce this leakage. Ru.

Each seal assembly 224 includes a plunger 256.

The plunger 256 is biased to engage the peripheral side seal 252 and the radial The seal 222 contacts each side wall of the piston 36 . This plastic The sealing material includes a radial seal member 2 of known sealing material. 30,232,234 of the above materials, including , made of a softer material than the material of the radial knoll members 230 and 232. Is it desirable? The plunger is in each monoyl 22 or 166 Extending through a passageway 258, the passageway extends in a stepped manner from one end of the module to the other. It is extending. Next to the piston 36, the passageway 258 is a push fit into the plunger 256. and then stepped at 260 to seat the O-ring knoll 262. It is. Moving away from the piston 36, the passageway 258 is again stepped. and houses the end plate 264. The plunger 256 is like this It protrudes through the end plate 264. Passage 258 has its steps. It leads to the main chamber 266 from the end. This main chamber 266 is threaded on the inside.

A passage 250 from the space 248 behind the radial seal 222 is connected to the end plate. The main chamber 266 is connected adjacent to the port 264 . plunge The chamber 256 protrudes into this chamber 266, and has a flange member 268 at its tip. I support it. This flange member provides a seat for compression spring 270. this The other end of the spring is attached to the blind end of a hollow stud 272 that is externally threaded. (end). The stud bolt 272 is attached to the main chamber 26 6 to compress the spring 270 and bias the plunger 256. to engage the side wall of the piston. The implanted hole 272 grows a hexagonal hole. do. This head is clearly shown in Figure 2, but the diagram is not clear in Figure 13. Some parts have been omitted for clarity.

When the piston 36 vibrates in the housing module 20, the side seam The assembly 224 moves in and out to compensate for lateral movement of the piston.

Peripheral side seals 252 also tend to accommodate any lateral movement of the piston. Ru. As described above, pressure is concentrated in the space 248 behind the radial seal 222. The increased pressure then flows along the passageway 250 to the main chamber 2 of the passageway 258. 66 and into the hollow portion of the stud 272. In the hollow part of the stud bolt, Increased pressure is applied to plunger flange member 268 and plunger 25 Plunger 256 is preferably circular in cross section. It is cylindrical, and at least in general, a part of its outer circumferential surface corresponds to the circumferential surface 22 of the piston. 6 and tangential to the tip 228 of the radial seal 222 and another portion of that surface. The radius is positioned tangentially to the adjacent side of the peripheral side seal 252. Close the gap between Alseal 222 and peripheral side/rule 252. plunge The engine 256 is particularly suitable for a combustion chamber structure such as the engine 160 (our ) The center of the radial seal 222, as shown in more detail in the co-pending application. It can have an axis extending along the plane. Ideally, in a single combustion chamber structure In this case, the plunger 256 is installed slightly biased towards the combustion chamber side of the housing. , the maximum pressure is produced in the engine and at the same time the maximum /-le effect is produced. This is usually Occurs at approximately 100 to 21 degrees from the center plane of the radial seal toward the combustion chamber. .

In an alternative embodiment for the smoke and burn chamber construction, each plunger 256 is assembled. 2 side seal assemblies 224 or 2 blanks/jars. One sight assembly 224 incorporating the 222 is attached to the two With each lunger being biased toward the combined combustion chamber as described above, , can be provided on each side of the piston 36. Furthermore, instead of this, for example , a plunger with an almost kidney-shaped cross section can be used in a smoke and burn chamber structure. can. This blunt gear is centered on the center plane of the radial seal 222. , the partially circular ends of the kidney-shaped cross section extend on each side of this central plane.

As can be seen particularly from FIG. 12, the side seal assembly 224 The studs 272 are accessed to secure the studs in place. The side opposite to the side from which the plunger 256 of the module 22 or 162 exits It can be done from

Referring to FIG. 14, a modified portion of the engine is shown. this part Then, the crank bin 28 of the crankshaft 14 is not stepped. . Therefore, the eccentric assembly 50 has a section where the piston 36 is attached. It is attached to the part of the crank bin 28 that has the same diameter as the minute. Module in Figure 14 20 is identical to the corresponding monoyl of FIG. 10.11, or the piston 36 is A plurality of threaded fasteners 80 directly attach to the flange 84 of the eccentric assembly 50. connected. This fastening fitting 80 is generally as described in FIG. 3゜4. It is something. The eccentric assembly 50 is clamped via a bearing 78 at its distal end. It is supported by Kubin 28.

This bearing 78 is encased in the enlarged passage 108 of the eccentric assembly. . Eccentric member 5 defining or supporting the sliding surfaces 58 and 62 2.54, guide block 56.60 and module 22.26 or 162 All internal openings are designed to accommodate non-tiered crank bins, as described above. Comparing to the example, it needs to be expanded slightly. However, in the embodiment of FIG. The length of the crankbin 28 is the combined length of the piston and eccentric assembly 50. does not need to be any longer than the previous embodiment. This is because the eccentric part mentioned above This is because the material is fixed directly to and immediately adjacent to the piston. Sara Another feature is that the eccentric assembly 50 is separable from the piston 36. The journal 18 of the crankshaft 14 in which the bearing 18 and the bearing seat 164 are arranged. 8 to the minimum length even in multi-piston machines.

Because this journal 188 has no eccentric assembly during assembly. , since it is only necessary to accommodate the length of the piston.

Those skilled in the art will appreciate that the invention described herein is susceptible to variations and modifications other than those specifically described. You will know what you can do. This invention is within the spirit and scope of this invention. It should be understood that it includes all such variations and modifications.

international search report 111111rl1mNl+l+N A11111+e@l1llfllla ,Kte/Al+　901004M1 Shokenai・Shukusho・0・(＾m-Electric tSakuchi l16 PC! 11σ907004% [83923430A! ? 4284/fu4cH60 0L3 Flo E! 2339911PR2245851GB1441715 1'? 10215B4JP50138405 XI, 7406236 SE 740 5670EX) (FjW Rensu)

Claims (23)

[Claims] 1. A rotatable drive shaft and a housing attached to the drive shaft. It has a piston mounted eccentrically so that it rotates counter to The piston is in the form of an epitrochoid with a 1:1 internal and external envelope. and the housing substantially conforms to the outer envelope of the epitrochoid. a cooperating working surface for said piston to mate with said piston; a pair of relative units mounted to rotate eccentrically together with the piston around The piston tracking mechanism includes an eccentric member offset from the upper As the piston rotates, it moves linearly along an angularly offset path. rotatable within each guide member restrained by each guide means so as to rotate mounted on the piston, said pair of eccentric members being immediately adjacent to said piston and in direct contact with it. A rotating piston machine of trochoidal construction that is fixed to rotate together. 2. 2. The rotary piston machine of claim 1, wherein the pair of eccentric members is A rotary piston machine that can be separated from the piston. 3. 2. The rotary piston machine of claim 1, wherein the pair of eccentric members is A roller that is mounted to rotate around the drive shaft in engagement with it. -Tally piston machine. 4. The rotary piston machine according to claim 1, wherein the piston and the eccentric member The eccentric part of the above drive shaft to which the is attached has a stepped crank pin. , the part where the eccentric member rotates has a reduced diameter with respect to the part where the piston rotates. rotary piston machine. 5. The rotary piston machine according to claim 1, wherein the drive shaft is One-piece rotary piston machine. 6. 2. The rotary piston machine of claim 1, wherein the pair of eccentric members is Rotary piston machines located on the same side of the piston. 7. 7. The rotary piston machine of claim 6, wherein the pair of eccentric members is Can be separated from the piston and above to facilitate placement around the drive shaft rotary piston divided along one or more axial planes machine. 8. The rotary piston machine according to claim 1, wherein each guide means has a guide passage. comprising opposite parallel straight walls of said housing forming a channel therein; In which each one of said guide members is a freely sliding rotary piston machine. 9. 9. The rotary piston machine according to claim 8, wherein each guide member a first pair of opposite sides for sliding engagement with the id passage; a second pair of opposing faces for selective sliding engagement with the guide passageway when the guide passageway is worn; A rotary piston machine with guide blocks forming interlocking sides. 10. The rotary piston machine according to claim 1, wherein the circumference of each eccentric member is Each guide member has one or more axial A rotary piston machine that is divided along the plane of. 11. A rotary piston machine according to claim 1, wherein each guide means has a wattage. Rotary piston machine with coupling. 12. The rotary piston machine according to claim 1, comprising an engine, two The combustion chamber of the rotary piston machine is formed on the working surface above. 13. The rotary piston machine of claim 1, wherein the machine housing comprises: , in the form of a module, the first module including the piston; The second module forms a cooperating working surface for the first eccentric member and each guide member. the third module includes a guide member and supports each guide means; A rotary that includes an eccentric member and each guide member and supports each of the above guide means. piston machine. 14. The rotary piston machine according to claim 13, wherein the drive shaft main The bearing is a rotary piston machine supported by the third module. 15. A rotatable drive shaft and the above drive system are installed inside the housing. The drive shaft is mounted eccentrically so that it rotates in the opposite direction to the shaft. with a plurality of pistons attached to each other, each piston having a 1:1 ratio of Pitrochoidal shape and formed with an outer envelope, and the housing the piston having respective cooperating working surfaces for said piston, each of said working surfaces having respective cooperating working surfaces for said piston; substantially conforming to the outer envelope of the epitrochoid and also with said associated piston. A pair mounted so that they both rotate eccentrically around the drive shaft. a piston with a tracking mechanism for each piston including a relatively offset eccentric member of The eccentric member is provided with a ton following means, and the eccentric member is configured to rotate off-angle as the piston rotates. It is restrained by each guide means to reciprocate linearly along the set path. A rotary piston machine rotatably mounted within each guide member . 16. A rotary piston machine according to claim 15 according to claim 1. 17. The rotary piston machine according to claim 15, wherein the drive shaft A rotary piston machine with multiple balance throws for the piston. 18. 16. The rotary piston machine of claim 15, wherein the machine housing is in the form of a module, and for each piston and piston-following machine there is a first The module includes a piston and forms a cooperating working surface therefor, and a second The module includes a first eccentric member and each guide member, and each of the guide means and the third module includes a second eccentric member and each guide member. and a rotary piston machine supporting each guide means. 19. The rotary piston machine according to claim 18, wherein the drive shaft main A rotary piston machine bearing is supported on each third module. 20. 20. The rotary piston machine of claim 19, wherein each third module comprises: , an axial opening for removably supporting each of the drive shaft main bearings mentioned above. and the axial opening above is large enough to allow the drive shaft to pass through it. Rotary piston machine made. 21. 19. The rotary piston machine of claim 18, wherein at least one piston The stone rotates in its associated first module in the working volume and its The perimeter of the working volume forms the working surface and the sides of the working volume 2 module and a third module of the adjacent assembly of the piston and piston follower. A rotary piston machine formed by a roller. 22. 22. The rotary piston machine according to claim 21, wherein the adjacent third model The module includes a rotary piston containing a port for the working volume of the first module. Stone machinery. 23. The rotary piston machine according to claim 18, wherein the drive shaft The thrust bearing for the -Tally piston machine.