JPS6217382A - Rotary pump - Google Patents

Abstract

PURPOSE:To obtain a rotary pump in a small size and easy to manufacture, by alternately turning plural pistons, arranged in an annular cylinder, and changing the displacement of space between the pistons. CONSTITUTION:If a driving plate 3 is rotated, an inner piston shaft 81 and an outer piston shaft 91 perform together with a connecting rod 4 the same rotary motion with gears 2 revolving around the axis. While when the connecting rod 4 moves fully sideward every two times per one rotation, an inner piston blade 8 and an outer piston blade 9 move most separating in one side while most approaching in the other side. The repetition of the above forces attracted liquid and gas to be alternately fed by pressure. An annular cylinder 10, being prepared with a true circle serving as the reference, can be easily manufactured, while a pump, moving both piston blades to perform a rotary motion, also well holds the balance in a driving system.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention provides two sets of pistons (8) and (9) attached to a concentric inner ring θ1) and an outer capillary tube (9°C) each independently inside a cylinder αO. The rotation is the same as that of the revolving gear (2), and the suction action of the pump is performed centering on the position where the distance between the piston blades (8) and (9) is widest. 9) Concerning a rotary pump that performs the pumping action centered on the position where the interval is the narrowest.@Purpose: "Industrial Application Fields": Pump manufacturing industry, engine manufacturing industry, Niakon 1 refrigerator , ``Prior art'' Conventional pumps mainly rely on a reciprocating piston system, or even in the case of a rotary pump, two (to) gears are combined or an eccentric rotation system is adopted for the blades. Above, behind the scenes,
It had the drawbacks of being complex, large-sized, and difficult to manufacture and maintain. In order to obtain a pump that is easy to balance, the drive part and a part of the piston cylinder are independent, and are advantageous in terms of operation and maintenance. Fixedly mounted large diameter gear (
Attach the drive plate (3) by passing the drive shaft (31) rotatably through the center of the drive plate (3). 1/2 of (1)
The two revolving gears (2) are connected to the large diameter gears (2) by holding each rotating shaft @υ of the
Mount it so that it rotates by aligning it with the outer peripheral surface of 1), and fix the drive cranks 4 of the same length to both revolving teeth (2) in parallel under the same conditions (Fig. 8). The crankshaft wheel of rank 4 is rotatably inserted into both ends of the connection @ (4), and both driving rank rocks are attached to the connecting rod (resulting in 4 summers:
Il! ! The IM monument (4) has the same rotational movement as the revolving gear (2) at both ends, and the connection e (41 has two vertically long finger grooves (4υ symmetrically) on both sides except the center and both ends. The two-pupil pointer (5) is fitted into each sliding groove (four times in each direction so as to be slidable inward and outward), and the shaft hole (6) passing through the center of both sleeve movers (6)
6]), the inner shaft piston arm (6) and the outer shaft piston arm t
:tk& The arm shafts (61) and (7"i) attached to each outer end of (7) are rotatably fitted, and the inner shaft piston is connected to the connecting rod (4) via the finger (5). The arm (6) and the outer piston arm (7) are attached, and the inner ends of the inner piston arm (6) and the outer piston arm (7) are connected to the piston inner shaft (8υ and the piston outer shaft) forming a coaxial axis. The piston inner shaft (81) and the piston outer shaft pipe (9υ) are fixedly connected to each inner end of the pipe (9υ)
The same rotation as the idler gear (2) is given to each of the piston inner shafts (8) and the outer end of the piston outer shaft tube (91), as shown in FIG. Inner shaft piston blade (8)
The inner shaft piston wing (8J has the front half part integral with the piston inner shaft (81), and the rear half part is the piston outer shaft) so that the outer shaft piston shaft (9) fits inside the cylinder αQ and rotates. (The outer shaft piston blade (91) is connected integrally with the piston outer shaft pipe (9), and the inner end of the front half is connected to the piston inner shaft (81 ) so that it rotatably fits on the outer circumference of the inner piston blade (8
) are parallel to the inner piston arm (6), and the outer piston blades (9) are installed at right angles to the outer piston arm (7). 9) is fitted inside the cylindrical silicider member and rotated.

In the pump of this invention, as shown in Fig. 5, suction is carried out between the inner piston blade (8) and the outer piston jl (9), which have the widest interval, through the suction path (log), and the pressure is increased. The extraction is performed by the (c) shaft piston blade (8J) and the outer shaft piston blade (9), which have the narrowest spacing, through the extrusion blade α03).

"Function" In a rotary pump with this structure, the drive shaft (3)
When driven and rotated, the inner piston blade (8) and the outer piston blade (9) rotate in the same manner as the revolving gear (21) together with the connecting rod (4), and as shown in FIG. times,
The inner shaft piston blade (8) and the outer shaft piston blade (9) are rotated at the position where the connecting rod (4) is moved most laterally.
The gap is the widest at 1g8, and the gap is the narrowest on the other side, making it possible to suck in and press out liquid or gas.

"Embodiment" The drawings show an embodiment of this invention, and -1 of the revolving gear (2)
Rotating shaft (2) and crankshaft of drive crank (2) (to)
The distance between the two can be arbitrarily determined.Although the drawings show a case in which the present invention is applied to a rotary pump, it can also be applied to a rotary engine.

"Effects of the Invention" Since the rotary pump of this invention has the above-mentioned configuration,
Compared to reciprocating piston type pumps, the volume can be significantly reduced, and there is no thrust on the shaft and bearings.
- Properly providing the suction and outlet holes allows the valve to have small walls, and the inner piston arm (8) and outer piston arm (9) are perfectly balanced in the direction of rotation. Since the contact area of the pistons (8) and (9) with the inner surface of the cylinder can be widened, sealing is easy and labyrinth backing can be used.
Since the drive part and a part of the piston cylinder are independent, it is easy to work and is advantageous in terms of use and maintenance.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a vertical cross-section of the rotary pump of the present invention; FIG. 2 is a cross-sectional view along line A in FIG. 1; FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is a perspective view showing the inner piston arm, the inner piston shaft, and the inner piston arm. FIG. 5 is a perspective view showing the outer piston arm, the outer piston tube, and the outer piston arm. FIG. 6 is a CC sectional view of FIG. 1. The suction port is indicated by a two-dot chain line. 7 and 8 are plan views illustrating the relationship between the inclinations of the inner piston arm and the outer piston arm of the present invention and the connecting plate, and FIG. 7 shows the state in which the connecting plate has moved outward to the maximum extent. Figure 8 shows a case where the inner piston arm and the outer piston arm overlap on the vertical center line of the connecting plate. In the figure, (1)...Large diameter gear, (2)...Revolving gear, (Incorporated Foundation)
...rotating shaft of the revolving gear, (2) ... drive crank,
[Stock]...Crankshaft of drive crank, (3)...
Drive plate, (31)...drive shaft, (4)...connection rod,
(41)...Vertical sliding groove, (5)...Slider, (
5℃...Shaft hole of slider, (6)...Inner shaft piston arm, (61)...Arm axis of inner shaft piston arm, (7)...
Outer axis piston wind (7'l)... Arm axis of outer axis piston arm, (8)... Inner axis piston arm, (81) 4! ! Piston inner shaft, (9)--outer shaft piston arm, (9℃... piston outer shaft tube, αO... cylinder,

Claims (1)

[Claims] A drive plate is attached by passing a drive shaft through the center of a fixedly mounted large diameter gear so that it can rotate freely, and two revolving gears with half the diameter of the large diameter gear are mounted at two symmetrical locations on both ends of the drive plate. Each rotating shaft is attached rotatably, two revolving gears are meshed with the outer periphery of the large diameter gear so that it rotates, and two driving cranks of the same length are fixed to both revolving gears in parallel under the same conditions. The connecting rod is installed by rotatably fitting the crankshafts at the outer ends of both drive cranks into both ends, and the connecting rod has two vertical sliding grooves symmetrically on both sides except for the center and both ends. The inner piston arm and the outer piston arm are formed by fitting each slider so as to be slidable inwardly and outwardly, and rotatably fitting each arm shaft into a shaft hole penetrating the center of both sliders. The inner ends of the inner piston arm and the outer piston arm are fixedly connected to the inner ends of the inner piston shaft and the outer piston shaft constituting the concentric shafts, and At the outer end of the cylinder, an inner piston wing and an outer piston wing are fitted and rotated inside the cylinder, and the inner piston wing is parallel to the inner piston arm.
The outer piston blade is attached at right angles to the outer piston arm, and by driving and rotating the drive shaft, the inner piston blade and the outer piston blade are independently rotated in the same manner as the two revolving gears. Twice in each rotation, the distance between the inner piston blade and the outer piston blade is the widest and the narrowest, and the distance between the inner and outer piston blades is the widest. A rotary pump characterized in that the suction action of the pump is performed at the position where the interval is the narrowest, and the pump action is performed at the position where the interval is the narrowest.