JPS632838U

JPS632838U -

Info

Publication number: JPS632838U
Application number: JP9631186U
Authority: JP
Priority date: 1986-06-23
Filing date: 1986-06-23
Publication date: 1988-01-09
Also published as: JPH0447388Y2

Description

[Brief explanation of drawings]

第１〜第３図は本考案に係るポンピングロス低
減装置付ロータリピストンエンジンの第１実施例
を示すもので、第１図は当該エンジンの一側部に
位置するサイドハウジングを省いた状態での概略
正面図、第２図は同エンジンの１作用状態を示す
概略正面図、第３図は第２図―線で切断した
同エンジンの断面図である。また、第４、第５図
は本考案の第２実施例を示すもので、第４図は当
該エンジンに備えられるロータの要部正面図、第
５図は第４図―線で切断した同ロータの断面
図である。更に、第６，７図は本考案の第３実施
例を示すもので、第６図は当該エンジンに備えら
れるロータの要部正面図、第７図は第６図―
線で切断した同ロータの断面図である。また、第
８〜第１１図は本考案の第４実施例を示すもので
、第８図はエンジンの概略構成を示す縦断側面図
、第９、第１０、第１１図は夫々、第８図におけ
る―線、―線、―線より見た同
エンジンの概略正面図である。更に、第１２、第
１３図は夫々、従来例及びその問題点を示すエン
ジンの概略正面図である。１，４０……ロータリピストンエンジン、２_１，２_２，４２_１〜４２_３……ロータハウジング、
４，２４，３４，４３，４４……サイドハウジン
グ、６_１，６_２，２０，３０，４７_１〜４７_３…
…ロータ、１２，５１……吸気ポート、１３，５
２……排気ポート、１５，２５，３５，４５_１，
４５_２，４９……連通路、１７，２２，３２，５
０……シール部材。 Figures 1 to 3 show a first embodiment of a rotary piston engine with a pumping loss reduction device according to the present invention, and Figure 1 shows the engine without the side housing located on one side of the engine. FIG. 2 is a schematic front view showing one operating state of the engine, and FIG. 3 is a sectional view of the engine taken along the line of FIG. 2. 4 and 5 show a second embodiment of the present invention. FIG. 4 is a front view of the main part of the rotor provided in the engine, and FIG. 5 is the same section taken along the line of FIG. FIG. 3 is a cross-sectional view of the rotor. Furthermore, FIGS. 6 and 7 show a third embodiment of the present invention, in which FIG. 6 is a front view of the main part of the rotor provided in the engine, and FIG.
FIG. 3 is a cross-sectional view of the rotor taken along a line. 8 to 11 show a fourth embodiment of the present invention, in which FIG. 8 is a longitudinal cross-sectional side view showing a schematic configuration of the engine, and FIGS. 9, 10, and 11 are respectively shown in FIG. FIG. 3 is a schematic front view of the same engine as seen from the lines -, -, -. Furthermore, FIGS. 12 and 13 are schematic front views of an engine showing a conventional example and its problems, respectively. 1,40...Rotary piston engine, 2 ₁ , 2 ₂ , 42 ₁ to 42 ₃ ... rotor housing,
4, 24, 34, 43, 44... side housing, 6 ₁ , 6 ₂ , 20, 30, 47 ₁ to 47 ₃ ...
...Rotor, 12,51...Intake port, 13,5
2...Exhaust port, 15, 25, 35, 45 ₁ ,
45 ₂ , 49...Communication path, 17, 22, 32, 5
0... Seal member.

Claims

[Scope of utility model registration request]

A communication passage is provided in the side housing provided on the side of the rotor housing to discharge a portion of the intake air from the working chamber of one cylinder during the compression stroke to the working chamber of the other cylinder during the intake stroke. In a rotary piston engine with a pumping loss reduction device, a sealing member that closes the communication passage when an intake port and an exhaust port simultaneously open into one working chamber is provided on a side surface of the rotor facing the communication passage. A rotary piston engine equipped with a pumping loss reduction device.