JPS59145302A - Rotary mechanism for internal and external engine, pump, motor, gear and so on - Google Patents

Abstract

PURPOSE:To make up a rotary mechanism having high areal efficiency by varying the capacity of the closed space which is formed by arranging two internal and external rotors having geared faces of epicycloid and hypocycloid curved lines in the way just like internal gears and making the rotors in contact with each other. CONSTITUTION:Since a rotor 1 is disposed inside a rotor 2 and makes hypo-to- hypo and epi-to-epi contact therewith, the rotors 1 and 2 mesh each other in the way like an internal gear. If the rotor 2 is considered as a rotary cylinder, the rotor 1 may be a rotary piston, however, the rotor is actually a slide internal gear because it has no pointed part and the contact point with the rotor 2 is not a fixed one but a moving one travelling on each curved line. Since the rotors 1 and 2 make contact with each other in just like a manner of the internal gear, by making one of both shafts of the gears act as an output shaft or an input shaft, the gear for engaging those shafts may become unnecessary together with no need for designing the mechanism in the planetary gear form, hence providing high areal efficiency and compact size of the mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary rotation mechanism for external combustion engines, pumps, motors, gears, etc., using a cycloid curve.

A volume change type rotation mechanism using a trochoidal curve or a cycloidal curve should originally utilize the excellent properties of its gears. If we apply these curves to an external rotor to create a closed space, for example, if we use only the hypocycloid curve, a part of the rotor, for example, on the pitch circle as shown in the diagram, will become sharp. (normal j
are the same), cannot be produced and has no practical value. Therefore, we gave up on applying the cycloid and used a trochoid curve with fewer restrictions in order to avoid sharp edges at the contact point as much as possible.The contact point becomes a fixed point, the gear properties are not lost, and the curved surface is far from the pitch circle. However, the area efficiency deteriorates, and the shafts of both rotors must be connected with separate gears, resulting in an increase in the number of parts.

The present invention uses two rotors having tooth surfaces of an evicycloid or hypocycloid curve formed by a circle with a diameter ditdz satisfying d=dx+dz around an inscribed circle with a diameter (n+1) d, nd to resemble gears. By providing a rotary rotation mechanism characterized in that a closed space is created by placing the inner and outer rotors in contact with each other, and a change in the volume of the closed space is utilized as the inner and outer rotors rotate relative to each other, the above-mentioned defects can be solved. The purpose is to realize a gear-like rotation mechanism that is inherently superior.

Hereinafter, the principles and implementation means of the present invention will be specifically explained in detail without referring to embodiments.

E/The figure is nd, (n+1) d (n is a positive integer)
Of the two pitch circles with a diameter of , the one when n=2 is shown. C1 is a pitch circle with a diameter of 3d, and C2 is a pitch circle with a diameter of 2d, which is inscribed in the pitch circle C1.

1 is a rotor whose outer corner ring line is a closed curve consisting of curves IA and IB. Now, 65 between pitch circles C1 and C2
Both pitch circles CI pass through contact point P1 of C2 and point P on both times
Draw a rolling circle C3 tangent at 1. Next, there is a foot between the rolling circle C3 and the pitch circle C2, and a point P on the pitch circle C2.
The roller whose diameter is the line segment created by extending the diameter passing through 1 draws a circle C4. When this circle C4 rolls on the pitch circle C2, the ebicycloid of the trajectory drawn by the point P2 on the circumference on this day 04 is the curve IA. Next, passing through the center 02 of the pitch circle C2 and on the diameter perpendicular to the line segment PIP2, a roller touching the pitch circle C2 and having a radius d1=d dz (the diameter of the rolling circle C4 is dz) forms a circle C5. When this circle is inscribed in the pitch circle C2 and rolled, the locus drawn by the point P3, the cyclocycloid, becomes the curve IB.

These curves LA, IB and these IA, IB around center 02/? A closed curve surrounded by the curve formed by 00 rotations defines the outer shape of the rotor l.

The outer corner ring line of the rotor 2 consists of two curved lines and 2B. Now, at point P2t - point P2, the roller circumscribes the circle C3, a rolling circle C6 of radius d-d2, that is, the pitch! Draw a rolling circle C6 inscribed in the circle C1 at point P4. When the rolling circle C6 rolls inscribed in the pitch circle CI, the hypocycloid of the locus drawn by the point P2 is the curve 2B. Now, draw a point P4 around the center o1 of the pitch circle CI.
After 0 rotation, a rolling circle c7 with a diameter d2 circumscribing the pitch circle CI is drawn at the next position, point P5. The point P6, which is the opposite end of the point P5 on the diameter of the circle 07, is the epicycloid of the locus created when the roller c7 circumscribes the pitch circle CI, and is the curve 1 gland 2A. These songs #jI2
A and 2B! The outer shape of the rotor 2 is determined by the curve formed when the : is rotated every ixto. That the two curves created as described above are closed curves can be easily proven by calculation from the diameter of the rolling circle and the diameter of the pitch circle.

Now, the centers of pitch circles C1 and 02 are 01 and 02f at an angular velocity ratio of λ to 3! : Consider rotating around the center. The locus 2B of the point P2 when the rolling circle C6 is inscribed in the pitch circle C1 and rolls is based on the definition of a cycloid and d
Since l+dz=d, the trajectory is the same as the locus of point P2 when the rolling circle C3 is inscribed in the pitch circle C1 and rolls. On the other hand, as described above, the song 5jlA is the locus of the point P2 when the roller rolls with the pitch circle C3 or the pitch circle C2 inscribed. Therefore, No Ibocycloid 2b and Ebicycloid IA always meet and touch at 7 points.

Also, as can be seen from the curves IA and 2A at the lower part of the figure, when the curve IA cane roller rolls while the circle C8 (207) circumscribes the pitch circle C2 which is inscribed in the pitch circle C1, Reeds on the shrimp cycloid of the trajectory of point P8, curve 2A
Since it is an ebicycloid that passes through point P8 when the rolling circle CB circumscribes the pitch circle C1 that circumscribes the pitch circle C2, the curve IA and the curve IB rotate in contact with each other due to the nature and definition of a cycloid. Similarly, song M2
B and curve IB also rotate in contact with each other.

In this way, since both rotors 1 and 2 are continuous No. 1 wart-epicycloids, when rotor 1.2 rotates around its respective center 02.01 at a rotational angular velocity ratio of 3:2, closed space I, I, I
can be created. Now closed space ■ is nt-i at point P8
Although it is divided into 1 and 1-2 spaces, it is considered to be seven closed spaces in terms of function.

If rotor 1 is connected to a rotating shaft whose axis passes through center 02, and rotor 2 is provided with a rotating shaft whose axis passes through center 01, then when the axial lines of both rotating shafts are fixed, both Both rotating shafts rotate at the speed of 3 pairs. When one rotating shaft is fixed, the other is used as a planetary shaft.

In Fig. 7, the rotor 1 is in contact with the inside of the rotor 2 in the form of A-hi-bo-hypo and shrimp-to-prayer O, and the rotors 1 and 2 are meshed with each other like the same gears. If we think of the rotor 2 as a rotary cylinder, then the rotor 1 can be thought of as a rotary piston, but there are no 9 points anywhere, and the contact points are not fixed points but moving points that move on each curve. In other words, a sliding internal gear is realized.

The Oko diagram is an example of an internal combustion engine. The rotary cylinder casing 2 and the fixed disc cover 3'fc sliding on the piston 1 are applied from both sides in the axial direction to form a closed space 1. Jl, It's coming. With this type of rotor facultative nature, rotor 1 can act as a valve, so
Intake holes and exhaust holes are opened at appropriate positions toward the fixed disc lid 3. When rotor 2 rotates /2θ0 around 01, rotor l rotates /lθ0 around 02i, and the room ■
is moved to the position of room H, the position of room I is moved to the position of room H, and the position of room ■ is moved to the position of room I. For example, in the illustrated position, room I ignites and explodes, It expands and moves to the maximum volume position of room ■. On the other hand, ``Room I is compressed and enters the exhaust stroke, and moves to the position of room ■, but 1 room ■ is still being evacuated, and it is further 6
At 00 rotations, it reaches the minimum volume position, and from that position it enters the suction stroke, rotates 60 degrees, moves to the position of room (3), completes the suction stroke, and prepares for the next ignition.

Therefore, an explosion occurs with such rotation of rotor 1.

The three strokes of exhaust, e, and pull are performed, and in the next engine, it is necessary to install a spark plug in room (3). Since this room is also rotating, a plug that will ignite when room I is placed in the position shown in the drawing is installed by making a hole in the side of the fixed disk-shaped casing mentioned above that overlaps in the direction perpendicular to the drawing. good.

FIG. 3 shows a cycle engine when n=3.

Both inner and outer rotors 1.2, Ebicycloid IA, 2A
, hypocycloid IB, 2B. By the way, 3
．． 4 is an exhaust guide provided on the casing side, an exhaust port, 5
, 6 are intake ports and intake guide grooves provided on the casing side.

FIG. 7 shows an embodiment of the pump or flowmeter for n=2. IA is ebicycloid, IB.

2B is hypocycloid, and 2C is arbitrary. When the rotors 1 and 2 rotate clockwise, a flow path is created as shown by the arrow in the figure. Therefore, this rotation mechanism can be used as a pump or a flow meter, and of course can also be used as a motor.

Two rotors with n=4 or more are connected so that one exhaust port is connected to the other intake port, a permanent combustion device is interposed in the middle of the connection path, and one rotor is used for air intake. 7
It is easy to use the other rotor as a motor to create an external combustion engine.

Note that FIG. 5 is for the case where n=1, and it looks like reciprocating processing.

Since the rotors 1 and 2 of the present invention have the same gear contact, by using one of the two shafts as the output shaft or the input shaft, there is no need for gears for meshing the two shafts, and the t&, planetary It does not require a gear type, has good area efficiency, and can be made smaller.

Advantages of having scales that rotate both the rotary piston and rotary cylinder: 1) No need for planetary gears.

++) No need for a flywheel to smooth rotation (for example, in an engine where the piston is the output shaft, the cylinder is the flywheel).

111) The rotation of the other shaft can be used (for example, as a cooling fan).

+v) Since both axes can be fixed, no run weight is required.

Advantages of being a cycloid: 1) The ratio of displacement or suction per area is large (in other words, miniaturization and material savings are possible).

11) Suitable for high speed rotation due to low slip rate.

Advantages in terms of use: l) Suitable for small, low-power engines (for model aircraft engines, lawn mowers, etc.).

I) By making the ebicycloid part of the incisor and the noibocycloid part of the external tooth smaller, that part can be used as a seal part.

111] Suitable for star-shaped cylinder rotation mechanisms.

[Brief explanation of the drawing]

FIG. 7 is a cross-sectional view showing an embodiment of the present invention when n=2, FIG. 2 is a cross-sectional view showing an example of the use of the present invention as an engine, and FIG. A conceptual diagram showing an example of use as an engine, an Og diagram is a sectional view showing an example of using the invention as a pump when n=2, and an Ota diagram shows the shape of the rotor when n=1 of the invention Geometric Diagram FIG. 3 is a geometric diagram of a commonly considered qta-shape for Tikloid application. 100. Rotor or gear or rotary piston; 2.
,, rotor or external gear or rotary cylinder, IA, 2
A, , Ebicycloid, IB, 2B. 19. Hypocycloid, oi, , Center of rotation of rotor 2, 02. ,,rotation center of rotor l,I,I,III
. 89. Closed space, CI, C2,..., pitch circle.

Claims (1)

[Claims] Around the inscribed circle of diameter (n+1) d, nd, d=dx+
A circle with a diameter dlsd2 that satisfies dz creates a shrimp/by placing two rotors with cycloidal or hypocycloidal curved tooth surfaces like gears, the inner and outer rotors are brought into contact to create a closed space, and the inner and outer rotors are A rotary rotation mechanism for external combustion engines, pumps, motors, gears, etc., characterized in that the change in volume of the closed space is utilized as the relative rotation occurs.