JPH0183103U

JPH0183103U -

Info

Publication number: JPH0183103U
Application number: JP1987180032U
Authority: JP
Priority date: 1987-11-25
Filing date: 1987-11-25
Publication date: 1989-06-02
Anticipated expiration: 2002-11-25
Also published as: JPH06595Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る多気筒ロータリピストン
エンジンのサイドハウジング構造の一例を、それ
が適用された２気筒ロータリピストンエンジンと
ともに示す断面図、第２図は第１図の―線に
従う断面図、第３図は従来のロータリピストンエ
ンジンの要部を示す断面図である。図中、１０はエンジン本体、１４及び１６はサ
イドハウジング、１５は中間ハウジング、１７は
フロント側ロータ、１８はリヤ側ロータ、２０は
偏心軸、２１は主偏心軸部材、２２は副偏心軸部
材、２４は固定ギヤ、２５は内歯ギヤ、３１〜３
３は軸受部、５１は冷却水通路、５２はオイル通
路、５５はオイルパン、５８はブローバイガス通
路、６０はオイルリターン通路、６１及び６２は
流出口である。 FIG. 1 is a cross-sectional view showing an example of the side housing structure of a multi-cylinder rotary piston engine according to the present invention, together with a two-cylinder rotary piston engine to which it is applied, and FIG. 2 is a cross-sectional view taken along the line - in FIG. 1. FIG. 3 is a sectional view showing the main parts of a conventional rotary piston engine. In the figure, 10 is the engine body, 14 and 16 are side housings, 15 is an intermediate housing, 17 is a front rotor, 18 is a rear rotor, 20 is an eccentric shaft, 21 is a main eccentric shaft member, and 22 is a sub-eccentric shaft member , 24 is a fixed gear, 25 is an internal gear, 31 to 3
3 is a bearing portion, 51 is a cooling water passage, 52 is an oil passage, 55 is an oil pan, 58 is a blow-by gas passage, 60 is an oil return passage, and 61 and 62 are outlet ports.

Claims

[Scope of utility model registration request]

A first eccentric part that supports a first rotor disposed in the first housing interior space is provided, and a tapered shaft part whose outer diameter increases toward the first eccentric part. A second eccentric portion supporting a main eccentric shaft member and a second rotor disposed in a second housing inner space is provided, and a tapered hole forming portion that fits into the tapered shaft portion is provided. a first side housing forming a side end portion of the inner space of the first housing, and a first side housing forming a side end portion of the inner space of the first housing, the first side housing being provided with a first bearing portion supporting one end portion of an eccentric shaft made of a cylindrical sub-eccentric shaft member; a second side housing forming a side end portion of the internal space of the second housing, the second side housing being provided with a second bearing portion supporting the other end side of the eccentric shaft; and the tapered hole forming portion of the eccentric shaft. an intermediate housing that partitions the first housing internal space and the second housing internal space, and is provided with a supporting third bearing part; a blow-by gas passage that surrounds the third bearing section and connects the oil pan disposed below the intermediate housing with an outlet provided at the upper part of the intermediate housing; The third portion of the intermediate housing communicates with the gas passage and is connected to the third portion of the intermediate housing.
A side housing structure for a multi-cylinder rotary piston engine, characterized in that an oil return passage communicating with the oil pan is provided through first and second outlet ports formed at the lower end portions on both sides of the bearing portion. .