DE2638486A1 - Rotary cylinder block IC engine - has horizontally opposed pistons which operate with fixed crank and rotating block and no connecting rods - Google Patents

Abstract

An internal combustion engine has a rotating cylinder block with a fixed crankshaft and eliminates the need for a connecting rod. A two cylinder engine (16, 18) has diametrically opposed pistons (28, 30) located in a cylinder block (4) within a housing (6). A fixed crankshaft (1) has an offset spigot (24) locating in a laterally sliding bearing block (40) within the piston assembly. The cylinder block has a projecting shaft (8) for output transmission. The piston has a pre-compression chamber (36) formed by a large diameter section that communicates with the main combustion chamber (32) through a side channel.

Description

PATENT LAWYERS DR.KADOR & DR.KLUNKER

2638A86

Patent attorneys KadorS Klunker Knoebelstr. 36 8 Munich 22

DR. ING. H. F. KLUNKER (DIPL. ING.) DR. RER. NAT. U. KAIX) R (DIPL. CHEM.)

Knoebelstrasse 36 At the Max I I monument

D-8 Munich 22

Phone: 089-224164

Telegram: hello pat

Telex: 5-22903

Your reference: / Your ref .: Re.:/Re:

Our reference: / Our ref .: K 11 522/7 T «g / Date

Siegfried Konther

San Lorenzo,
Calle Cerocora, Paraguay

Rotary motor

The invention relates to a rotary engine with rotating cylinders and a stationary crankshaft.

Such rotary engines have already been used as aircraft engines, due to their complex production

709846/0616

and their high sensitivity, however, they have not been able to establish themselves.

The invention is based on the object of creating such a rotary motor which is easy to manufacture and works reliably.

According to the invention, this is achieved in that in a rotor, which is on the main bearing pin of a front crank is rotatably mounted, two cylinders or pistons are arranged in opposition and one with the main bearing pin aligned output shaft is firmly connected to the rotor and that continues on the free crank pin a double piston or double cylinder so rotatably mounted is that when the rotor rotates, it performs a reciprocating motion relative to it. The principle of the rotary motor is thus implemented in the simplest way in terms of construction.

In a further embodiment of the invention, the crank pin is mounted in a carriage, which is in a double piston or double cylinder arranged sliding bush to the longitudinal axis of the double piston or double cylinder is guided displaceably at right angles. One full turn of the rotor is thus associated with a reciprocating movement of the double piston or double cylinder.

It is preferably in the double piston or double cylinder a space is cut out for the crank web, which is dimensioned so that a free rotation of the double cylinder resp. Double piston around the crank pin is possible.

709846/0616

A particularly reliable mode of operation results when the rotary engine works in the two-stroke process. The main bearing pin can have an axial channel for the power supply that goes into the space in the double cylinder or double piston opens. The fuel supply is solved in the simplest way.

In addition to the two combustion chambers, two precompression chambers can be used for a particularly high degree of efficiency of the engine be provided, on the one hand with the fuel supply via correspondingly arranged control slots and on the other hand are connected to the opposite combustion chamber. The piston needs that The fuel mixture is not sucked in, but is pressed into the combustion chamber under pressure.

According to a further embodiment of the invention, each Side of the poppelkolbens designed as a stepped piston, the middle axially protruding piston area the combustion chamber and the annular outer axially recessed area limits the pre-compression space. During a compression stroke, the The fuel mixture is compressed in the combustion chamber and brought to feed pressure in the pre-compression chamber.

According to a further embodiment of the invention, pre-pressure chambers are arranged in the double piston, which with the Pre-compression space are in communication and which charge during the compression stroke and via through slots and feed channels arranged in the cylinder wall to fill the combustion chamber on the opposite side

709846/0616

with a fuel mixture is thus solved in the simplest way in terms of construction.

Overflow slots are advantageously arranged in the rotor wall, which are controlled by a piston edge and through which the pre-compression chambers are filled with fuel will.

According to a further embodiment of the invention, can the rotor consist of a continuous cylinder, on whose head sides the pistons are screwed, which with cooperate with the double cylinder. A replacement of the Piston can thus be accomplished in the fastest way by simply unscrewing and pulling out.

Preferably there is a circular ring around each piston Pre-compression space arranged by an axially protruding, annular region of the Wall of the double cylinder is limited. A hub of the The double cylinder is used to compress the fuel mixture in the combustion chamber and to charge the Fuel mixture in the pre-compression chamber.

According to a further development of the invention, pre-pressure chambers are arranged in the double cylinder, which are connected to the pre-compression chamber are in connection and that charge during the compression stroke and via through-slots and in the piston wall arranged feed channels for filling the respective opposite combustion chamber with this get in touch.

In this case, overflow slots are preferably in the rotor wall arranged, controlled by a piston edge

709848/0616

and through which the pre-compression chambers are filled with fuel.

Preferably, exhaust slots lead from the combustion chambers into the open, which are released when the combustion chamber is expanded will. There can be silencers on the outside of the exhaust ports be arranged.

The circulating motor according to the invention has in particular has the advantage that it does not need a connecting rod or connecting rod bearing. He can also use horizontal and vertical axis. Compared to rotary piston engines, there are no seals and seals Material problems. As a result of the charging of the fuel mixture upstream of the actual compression stroke in The pre-compression chambers achieve excellent combustion and the exhaust gas problem is optimally solved. Of the Motor continues to cool itself by rotating itself.

A particular advantage of the second embodiment is the possibility of simplifying the pistons or piston rings Way to change.

Embodiments of the invention are described below with reference to the accompanying drawings, for example. Show in it:

Fig. 1 is a schematic cross section through the circulation motor,

Fig. 2 is a cross section along the line I-I in Fig. 1, and

709846/0616

2638Λ86

lor
J

Fig. 3 is a schematic cross section similar

Fig. 1 by a further embodiment of the rotary motor.

A rotor 4 is rotatably mounted on the stationary main bearing journal 1 of a front crank 2. The main bearing journal 1 of the front crank 2 is firmly supported in a housing 6. On the opposite of the front crank 2 On the side, an output shaft 8 is flanged to the rotor 4 and is rotatably supported in the housing 6 in main bearings 10 and 12 is. The rotor 4 consists of a central cylinder liner 14, with smaller cylinder liners on each end Diameter 16, 18 are screwed on. The walls of the cylinder liners 16, 18 can be provided with cooling fins on the outside, as can be seen from FIG. 1. The open ends the cylinder chambers are closed with cylinder covers 20, 22, through which spark plugs in the usual manner Protrude into the combustion chamber. A double piston 26 is mounted on the free crank pin 24, each of which is stepped is trained. It has a central area 27 of large diameter and two in the manner of a boxer engine oppositely arranged pistons 28, 30 of smaller diameter. The pistons 27, 28, 30 act with the Cylinder chambers inside the rotor 4 together in a known manner, so that two cylindrical combustion chambers 32, 34 and two circular pre-compression spaces 36, 38 are formed.

With a stroke movement of the double piston in the rotor, combustion chamber 32 and pre-compression chamber 36 are created at the same time compressed, while combustion chamber 34 and pre-compression chamber

709846/0816

38 expand.

A slide 40 is for example on the free crank pin 24 rotatably mounted by means of a roller bearing. The carriage 40 has a cylindrical shape and can move back and forth in a sliding bush 42 arranged in the double piston, as shown in particular in FIG. 1 can be seen. The possible stroke to the left and right in Fig. 1 must be at least as large as the eccentricity the crankshaft or the stroke of the pistons 28 and 30.

In order to enable free rotation of the double piston 26, a space 44 is cut out in the area of the crank web. This space stands above an axial channel 46 in the main bearing journal 1 with an external channel 46 that can be placed on the channel 46 Carburettor in connection, so the fuel is supplied to the combustion chambers via this channel, which follows is described.

The fuel mixture passes from space 44 through overflow slots 48 into the pre-compression chambers 36 and 38, respectively. In FIG. 1, the double piston is in one position drawn, in which an overflow slot 48 is just connected to the pre-compression chamber 36. the Overflow slots are controlled in a known manner by the edges of the central piston section 27. In each case in a dead center position of the double piston 26, the overflow slots 48 give the way into the respective opposite ones arranged pre-compression chamber free.

In the middle piston area 27 there are pre-pressure chambers 50 arranged, which are each with a pre-compression chamber 36 and 38 in connection and a radial, normal-

709846/0616

wise have the cylinder wall closed opening, which in a certain position of the double piston 26 can be made to coincide with through slots 52. The through slots open into feed channels 54, which lead to combustion chamber 32 and 34, respectively. As can be seen from Fig. 1, the feed channels run 54 in the cylinder walls.

On the output shaft 8 there is an interrupter cam ring 56 arranged, by means of which the spark plugs or contact bridges arranged in the combustion chambers 32, 34 are controlled will.

Wind blades 58 can be attached to the outside of the rotor in order to cool the rotor rotating in the housing to enhance.

The burned gases escape from the combustion chambers 32, 34 through exhaust ports 60 (FIG. 1). From inside of the housing 6, the burnt gases are conveyed together with hot air via outlet ducts 58 to the outside.

The housing 6 can be supported in any way via side flanges.

The rotary motor works as follows. In the in the position of the double piston 26 shown in Figures 1 and 2 flows fuel mixture from the not shown Carburetor via the axial channel 46 into space 44 and from there via the overflow slots 48 into the pre-compression space 36. At the same time flows out of the pre-pressure chamber 50

709846/0616

2838486

Fuel mixture of higher pressure via passage slot 52 and feed channel 54 into the combustion chamber 32. The burned gases are at the same time to the exhaust port 60 washed out.

Combustion chamber 34 is compressed to the maximum at the same time and the spark plug in question receives an ignition current from the breaker cam ring 56. Through the expanding The fuel mixture in the combustion chamber 34 becomes double piston 26 pressed down, this compressive force by the sliding guide of the carriage 40 in the sliding bush 42 in a torque about the axis of the main bearing journal 1 of the end crank 2 is implemented. The one shown in FIG Arrangement begins to rotate counter-clockwise. After a 90 ° rotation, both combustion chambers 32, 34 are the same size and slide 40, the cylinder wall on the right in FIG. 1, now at the top, has largely become approximated. The momentum of the explosion in the combustion chamber 34 is sufficient to turn the rotor further and into one position to bring, in which the combustion chamber 32 shown below in the drawings is now at the top and that in him the fuel mixture is also compressed, whereupon a new spark initiates the cycle described again.

During the downward movement of the double piston from the position shown in Fig. 1, the pressure increases of the fuel mixture located in the pre-compression chamber 36 in that it is based on the volume the pre-pressure chamber 40 is reduced in size. Depending on the respective control characteristics, the Mouth of the pre-pressure chamber 40 only immediately before reaching the bottom dead center of the relevant

709846/0616

Piston with the through slot 52 to cover. The overflow slots are also controlled in such a way that that they are only released near or in the extreme positions of the double piston. The mode of operation otherwise corresponds to a conventional two-stroke engine.

In the embodiment shown in Fig. 3, the rotor consists of a continuous cylinder 70, on which The pistons 72, 74 are screwed onto the head sides and protrude into the interior of the cylinder 70. You fill in doing so, the interior of the cylinder 70 is not fully utilized, so that around the cylinders 72, 74 there is in each case a circular ring-shaped Space is formed, which is used as a pre-compression space 76 and 78, respectively. On the free crank pin 24 of the end crank 2, a double cylinder 80 is mounted in the same way as in relation to the embodiment according to Figures 1 and 2 was described. The double cylinder 80 therefore moves when the Rotor or through cylinder 70 relative to this back and forth, with combustion chambers 82, 84 compressed alternately and be expanded. The double cylinder not only seals against the pistons 72, 74, but also against the inner wall of the rotor or cylinder 70. In this way, for example, at the same time with the compression of the combustion chamber 82, the pre-compression chamber 76 is compressed. In the wall of the double cylinder 80, in turn, a pre-pressure chamber 86 is arranged, which has a radially inwardly directed Muzzle with a through slot 88 and a channel in the wall of the piston 74 can be brought into congruence. In this way, the fuel mixture precompressed in the pre-pressure chamber 86 flows into the combustion chamber a. The supply of the fuel mixture from the chamber

709846/0616

263BA86

-χ-

into the pre-compression chambers 76 and 78 takes place through the walls of the rotor or cylinder 70 Overflow channels 90. The channels are controlled by corresponding edges of the double cylinder 80 in the manner already described in connection with the exemplary embodiment according to FIGS. 1 and 2 and Way.

As can be seen from the drawing, the burned gases escape from the exhaust port 92, while New, pre-compressed fuel mixture from the pre-pressure chamber 86 into the combustion chamber via the passage slot 88 82 flows in. On the opposite side, piston 72 has compressed combustion chamber 84 and receives its ignition spark via spark plugs inserted into the openings 94, as described above. The expanding gas mixture sets the rotor in rotation, the double cylinder 80 being moved back and forth at the same time.

The particular advantage of the embodiment according to FIG. 3 can be seen in the fact that, as is clear from the drawing it can be seen that the pistons 72 and 74 are extremely simple can be dismantled and replaced.

Both embodiments can also be designed in flat-bottomed design, which means that the same Engine dimensions could achieve a larger cylinder volume.

In the embodiment according to FIGS. 1 and 2 the axes of the pistons 30 and 32 can also be reduced by a small amount to the symmetry axis of the double piston 26

Ϊ09846 / 0616

- 12 -

be offset, which results in a greater overturning moment.

The rotary engine described works in the two-stroke process with an oil-gasoline mixture. A change however, petroleum or diesel drive can easily be carried out.

7098 ^ 6/061 6

Claims (14)

Claims 1. Rotary engine with rotating cylinders and resting Crankshaft, characterized in that in a rotor (4) which is on the main bearing journal (1) a front crank (2) is rotatably mounted, two cylinders (16, 18) or pistons (72, 74) are arranged in a counter-position and the output shaft (8) aligned with the main bearing pin (1) is fixed is connected to the rotor (4) and that on the free crank pin (24) a double piston (26) or double cylinder (80) is rotatably mounted so that when the rotor (4, 70) rotates relative to this performs a reciprocating motion. 2. Rotary motor according to claim 1, characterized in that the crank pin (24) in a slide (40) is mounted, which is arranged in a double piston (26) or double cylinder (80) Sliding bush (42) in one to the longitudinal axis of the double piston (26) or double cylinder (80) is guided displaceably in a right-angled direction. 3. Rotary piston according to claim 1 or 2, characterized in that in the double piston (26) or double cylinder (80) a space (44) is recessed for the crank web, which is dimensioned so that a free rotation of the double cylinder or double piston around the crank pin (24) is possible. 4. Rotary motor according to one of claims 1 to 3, characterized in that it is in the two-stroke process is working. 709846/0616 ORlGJNAL IMSPECTED 5. Rotary motor according to claim 3 or 4, characterized in that the base bearing pin (1) an axial channel (46) for the fuel supply which opens into the space (44) in the double cylinder (26) or double cylinder (80). 6. Rotary motor according to one of claims 1 to 5, characterized in that in addition to the two combustion chambers (32, 34; 82, 84) each pre-compression chambers (36, 38/76, 78) are provided which Via appropriately arranged control slots on the one hand with the fuel supply and on the other hand with are each connected to the opposite combustion chamber. 7. Rotary motor according to one or more of the claims 1 to 6, characterized in that each side of the double piston (26) is a stepped piston is formed, wherein the middle axially protruding piston area (28, 30) the combustion chamber (32, 34) and the annular outer, axially recessed area (27) delimits the pre-compression space (36, 38). 8. Rotary motor according to claim 7, characterized in that in the double piston (26) pre-pressure chambers (50) are arranged which are in communication with the pre-compression space (36, 38) and which charge themselves during the compression stroke and through slots (52) arranged in the cylinder wall and feed channels (54) for filling the respective opposing combustion chamber (32, 34) in connection therewith come. 709846/0616 9. Rotary motor according to claim 7 or 8, characterized in that in the rotor wall Overflow slots (48) are arranged, the are controlled by a piston edge and via which the pre-compression chambers (36, 38) with fuel be filled. 10. Rotary motor according to one or more of the claims 1 to 6, characterized in that the rotor consists of a continuous cylinder (70), on the head sides of which the pistons (72, 74) are screwed, which are connected to the double cylinder (80) work together. 11. Rotary motor according to claim 10, characterized in that g e k e η η shows that around each of the pistons (72, 74) there is a circular precompression chamber (76, 78) consists of an axially protruding annular area of the wall of the double cylinder (80) is limited. 12. Rotary engine according to claim 10 or 11, characterized ge * indicates that (80) form chambers (86) are arranged in a double cylinder, associated with the precompression space (76, 78) in connection and be recharged during the compression stroke and through slots (88 ) and feed channels arranged in the piston wall for filling the respective opposing combustion chamber (82, 84) come into connection therewith. 13. Rotary motor according to claim T1 or 12, characterized characterized in that overflow ducts (90) are arranged in the rotor wall, 709846/0616 2638A86 which are controlled by a piston edge and via which the pre-compression chambers (76, 78) be filled with fuel. 14. Rotary motor according to one or more of the claims 1 to 13, characterized in that exhaust slots (60, 92) from the combustion chambers lead into the open, which are released when the combustion chamber is expanded. 709846/0616