JPS6069206A - Rotary type fluid prime mover - Google Patents

Abstract

PURPOSE:To contrive to simplify structure by a method wherein a rotor blade having a definite length is inserted, in freely slidable manner, into a rotor which is inscribed in the inner periphery surface of a casing at the top dead center, the curved shape of the inner surface of the casing is formed by the locus described by the top end of the rotor blade. CONSTITUTION:A rotor blade 4 having a definite length is inserted, in freely slidable manner, into a cylindrical rotor 3 rotated with inscribing in a casing at the top dead center 2 of the inner surface of a casing 1. Meanwhile, the curved shape of the inner surface of the casing 1 is finished so that the right side half part thereof is given a semicircular periphery curve and the left side half part (180 deg.) is given a locus curve described by the other end part of the rotor blade 4. Thereby, the action of the fluid pressure flowed into an inlet groove 8 is fully started at the position where the one end of the rotor blade 4 is passed the end point 10 of the inlet groove 8, the rotor blade 4 is rotated with sliding in the groove of the rotor 3, then the fluid is exhausted from an exhaust pipe 15 through an exhaust groove 11. By such a simple structure, said device can be accommodated to either liquid or gas, accordingly, the high speed rotation can be achieved, and the large horsepower can be generated by a small type prime mover.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary prime mover using fluid pressure, and an object of the present invention is to provide a rotary prime mover that is small in size and capable of high horsepower, with the ability to withstand not only low speeds but also high speed rotations. In order to make this possible, the rotary blade has a constant length, and the locus drawn by the tip of the blade is shaped like an inner curve of the casing, thereby obtaining a rotary fluid motor that performs rotational motion close to circular rotation.

To explain the present invention in detail with reference to the drawings, in FIG. 1, a rotor blade 4 of a constant length is installed in the diametrical direction of a disc-shaped rotor 3 that rotates inscribed at the top dead center 2 of the inner surface of the casing 1. is slidably inserted into the casing 1, and rotatably and airtightly sealed inside the casing 1 by side plates 5 as shown in FIG.

The curved shape of the inner surface of the casing 1 has a 180-degree section on the right half formed into a semicircular curve from the top dead center 2, and one end of the rotor blade 4 that was in contact with the top dead center 2 comes into contact with this and slides. At this time, the locus curve drawn by the other end is finished so that it becomes the inner curve of the next left half 180 degree section. Since the inner surface curve of the casing 1 is shaped like this, the rotor blade 4 having a constant length can smoothly slide on the inner surface of the casing 1 while reciprocatingly sliding in the groove of the rotor 3.

Next, to explain its operation, the pressure of the fluid that entered the inflow groove 8 from the inflow pipe 14 begins to completely act on the rotor blade 4 from the position where one end of the rotor blade 4 passes the end point 10 of the inflow groove 8. Rotational power is applied to the rotor 3, and this force acts until one end of the rotor blade 4 rotates 180 degrees from the position passing the end point 10 and reaches the starting point 12 of the discharge groove 11. At that time, the other end The end point 10 of the inflow groove 8 has been reached again, and the next operating stroke begins when the fluid that has been powered is discharged. In this way, the rotor blade 4
Since fluid pressure acts on the rotary motor, it can fully function as a rotary fluid motor. In this case, the side pressure of the fluid on the rotor 3 can be balanced and rotational vibration caused by the rotor blades 4 can be prevented by using a plurality of rotary fluid motors as described above connected symmetrically in series. This allows higher speed rotation to be obtained.

As explained above, the rotary fluid motor according to the present invention has the advantage that it has a simple structure and can be used with either liquid or gas as the operating fluid, and the size can be freely selected by selecting the material according to the application. It is very convenient because it can be used as a pump and can also be used as a pump using other motive power.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional front view of the rotary fluid motor of the present invention. FIG. 2 is a partially longitudinal side view at the top dead center 2 position. FIG. 3 is an explanatory diagram showing the curved shape of the inner surface of the casing 1. FIG. In the figure, 1 is the casing, 2 is the top dead center, 3 is the rotor, 4 is the rotor blade, 5 is the side plate of the casing 1, 6 is the shaft of the rotor 3, 7 is the bearing, 8 is the fluid inflow groove, 9 is the starting point of the inflow groove 8;
10 is the same end point, 11 is a fluid discharge groove, and 12 is a discharge groove 11
13 is the starting point, 13 is the same ending point, 14 is a fluid inflow pipe, and 15 is a fluid discharge pipe. Patent applicant Masahiko Kiyotani

Claims (1)

[Claims] As shown in the drawing, a rotor blade 4 of a certain length is slidably inserted in the diametrical direction of the rotor 3 inscribed at the top dead center 2 inside the casing 1, and the inner surface of the casing 1 is A half 180 degree section is shaped like a semicircular curve from the top dead center 2, and when one end of the rotor blade 4 slides in contact with this, the locus curve drawn by the other end is above the other half 180 degree section. The rotor 3 and the rotor blades 4 are rotatably and airtightly sealed in the casing 1 by side plates 5, and the shaft 6 of the rotor 3 is It is received by a bearing provided on the plate 5. The starting point 9 of the fluid inlet groove 8 is located at a distance from the top dead center 2 that is greater than half the thickness t of the rotor 4, and the end point 10 is located on both sides of the rotor 4 protruding from the rotor 3. The lengths are equal, the starting point 12 of the opposite discharge groove 11 is a little further forward than the tip of the rotor 4 in this state, and the ending point 13 is from top dead center 2. The distance between the rotor blades 4 and 4 is greater than half the thickness t of the rotary blade 4, and the inflow groove 8 is provided with an inflow pipe 14, and the discharge groove 11 is provided with a discharge pipe 15. prime mover.