JPH03901A - Rotary engine - Google Patents

Abstract

PURPOSE:To eliminate the pressure difference between the space between both sides so as to improve performance by providing a through hole open to both sides of a rotor for communicating the space between both the sides encircled by a side seal in both the sides of the rotor with each other. CONSTITUTION:A rotor 1 is stored in a rotor housing 2, a side housing 3 and an intermediate housing 4, whereas a through hole 6 open to both sides of it is provided near the top of a rotor 1. Through the through hole 6, the space between both the sides 7, 8 formed inside a side seal in both the sides of the rotor 1 are communicated with each other to eliminate the pressure difference between these. This prevents the rotor 1 from being positioned to one side and makes the side seal slide on both sides in proper conditions along the opposing side housing 3. It is thus possible to prevent high pressure gas from blowing toward the side seals and entering the rotor 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention relates to an improvement in a rotary engine having a trochoidal rotor housing and a rotor housed within the housing and eccentrically mounted on an eccentric shaft.

In particular, the present invention attempts to balance the gas pressure between the side housings and internal housings on both sides of the rotor, and between the rotor side spaces (inside the side seals).

That is, the gas pressure difference between the side spaces on both sides of the rotor, which causes the rotor to shift to one side, is eliminated.

Gas pressure build-up in the side spaces surrounding the rotor occurs due to the following reasons.

In other words, when looking at the side seals on the side surfaces of the rotor macroscopically, the degree of intrusion of high-temperature, high-pressure combustion gas on the rotor surface differs between the side spaces on both sides of the rotor due to differences in size, shape, and degree of sliding with the seal groove. do. In addition, (2) Prior Art In the conventional electronically controlled fuel injection type rotary engine using an injector, the intake boat on the injector device side has a smaller diameter than the intake boat located on the side housing side. The intake boats are provided at different locations.

Therefore, the opening starting parts of the intake boats are located offset from each other.

(3) Problems to be solved by the invention By the way, the positions of the intake boats (especially at the opening starting parts), which are placed on both sides of the rotor as described above, are conventional.
However, if there is a large deviation as described above, there will be a difference in the time that the spaces on both sides of the rotor connect with the intake boat as the rotor rotates.

Then, the high-pressure gas leaks inward from the side of the rotor, especially the side seal, and the high-pressure gas that enters into the space on one side of the rotor, that is, the side space that connects quickly to the intake boat, quickly escapes and the pressure decreases, while the other side High-pressure gas exists in the other side space that is not yet connected to the boat, and the rotor is pushed to one side by the pressure of this high-pressure gas. Due to this rotor shifting phenomenon, one of the two side surfaces of the rotor is strongly pressed against the side housing, and the other side seal is momentarily separated from the sliding movement of the side housing.

For this reason, one side of the rotor creates frictional resistance with the side housing, and the other side space (inside the side seal) is filled with high-pressure gas blowing on the side seal, causing gas to flow inward. It is leaking, causing scum leakage and high temperature overheating of the engine.

This results in output loss and engine overheating.

(4) Means for solving the problem Therefore, in order to balance the gas pressure in the side spaces on both sides of the rotor, the inventor of the present invention provided a through hole in the rotor at a portion inside the side seal on the side of the rotor. The objective was to provide a rotary engine in which the spaces on both side surfaces inside the side seal portion were communicated through a through hole.

An embodiment of the present invention will be described below with reference to the drawings.

The rotary engine of this example is installed in a passenger car.
This will be explained using either the front or rear housing of a rotary engine with a rotary engine configuration.

FIG. 1 is a sectional view taken along the axial direction of the rotary engine of the present invention, and FIG. 2 is a side view of the rotor.

1 is a rotor, 2 is a rotor housing, 3 is a side housing, 4 is an internal housing, and 5 is a side seal.

Now, in the present invention, the rotor 1 is provided with through holes 6 extending to both sides thereof.

Considering the weight balance of the rotor 1, the through-holes 6 are distributed and arranged near each vertex, and there are usually about three through-holes.

Of course, its location is inside the side seal 5.5 as shown in FIG.

Further, the cross-sectional diameter of the through hole 6 is determined in consideration of the amount of gas permeation, but it is preferably φ5 to 81 based on experimental values.

(5) Effects of the invention - The pressure difference between the rotor 1, side housing 3, and inter is eliminated and balanced.

Therefore, no gas pressure difference occurs on both sides of the rotor 1, the rotor 1 is not biased, and the side seals 11 and 11 on both sides slide in the same state on the opposing side housing surfaces 16. .

Therefore, high-pressure gas is not blown onto the side seal 11 and intrudes into the rotor 1, so that gas leakage and am-change of the engine do not occur.

In particular, since gas intrusion into the rotor 1 is effectively prevented, the engine temperature can be suppressed.
This is convenient for 30-tar engines and 40-tar engines that incorporate multiple rotors, which has been considered difficult in the past.

[Brief explanation of drawings]

FIG. 1 is an axial sectional view of the rotary engine of the present invention, and FIG. 2 is a side view of the rotor.

Claims (1)

[Claims] In a rotary engine with intakes on both sides, the left and right side housings and the internal housing have intake points that open on both sides of the rotor.
A rotary engine in which a through hole is provided through the rotor at a portion inside the side seal on the side of the rotor, and this through hole allows the spaces on both sides of the rotor surrounded by the side seals on both sides of the rotor to communicate with each other.