JPS61147683U

JPS61147683U -

Info

Publication number: JPS61147683U
Application number: JP3196485U
Authority: JP
Priority date: 1985-03-06
Filing date: 1985-03-06
Publication date: 1986-09-11

Description

[Brief explanation of the drawing]

第１図は本構造の第１実施例を示す側面図、第
２図は第１図―線断面図、第３図はオイルリ
ターン機能を付加した第２実施例の側面図、第４
図は第３実施例の側面図、第５図は第４図―
線断面図、第６図ａ及びｂは左右のメインパイプ
をクロスパイプで連通した更なる第４実施例の部
分斜視図と同平面図である。尚、図面中、１はパイプフレーム、２はヘツド
パイプ、３はメインパイプ、５はサブパイプ、６
はエンジン、８はクロスパイプ、１２はコネクチ
ングチユーブ、１３はリターンチユーブ、３２は
ガス取入口、３３，５１はドレン口、３５はガス
吐出口、３６，３８，１３６は隔壁、３７，３９
，１３７は連通口、６２はブリーザパイプ、Ｓ_１，Ｓ_２，Ｓ_３は気液分離室である。 Fig. 1 is a side view showing the first embodiment of this structure, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a side view of the second embodiment with an oil return function added, and Fig. 4 is a side view showing the first embodiment of this structure.
The figure is a side view of the third embodiment, and Figure 5 is Figure 4.
The line sectional view and FIGS. 6a and 6b are a partial perspective view and a plan view of a further fourth embodiment in which left and right main pipes are connected through a cross pipe. In addition, in the drawing, 1 is a pipe frame, 2 is a head pipe, 3 is a main pipe, 5 is a sub pipe, and 6
is the engine, 8 is a cross pipe, 12 is a connecting tube, 13 is a return tube, 32 is a gas intake port, 33, 51 is a drain port, 35 is a gas discharge port, 36, 38, 136 is a partition wall, 37, 39
, 137 is a communication port, 62 is a breather pipe, _S1 , S ₂ and S ₃ are gas-liquid separation chambers.

Claims

[Claims for Utility Model Registration] (1) In an engine mounted on a pipe frame, the breather port provided in the engine communicates with the inside of the pipe frame, and there are several air chambers separated into a labyrinth within the pipe frame. An engine breather structure characterized by forming a liquid separation chamber. (2) The engine breather structure according to claim 1, wherein the engine is mounted on a straddle-type vehicle, and the gas-liquid separation chamber is formed in a main pipe connected to a head pipe constituting a frame.