JPS6226529U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図〜第４図は本考案の一実施例に係るロー
タリ弁を示し、第１図はクランクケース過給式内
燃機関を示す縦断面図、第２図ａはロータリ弁を
示す横断面図、第２図ｂは第２図ａ中のｂ―
ｂ矢視断面図、第３図は第２図ａ中の部の要部
拡大断面図、第４図はロータリ弁の動作状態を示
す横断面図、第５図は従来のロータリ弁を示す横
断面図である。 図面中、２１ａ……流路、２５……ロータリ弁
、２６，２７……ロータリ弁の通路、２６ａ，２
６ｂ……通路の入口および出口、Ａ_０……流路の
内径、Ａ_１……流路の中間部の内径、Ａ_２……通
路の入口および出口の内径、Ｂ……中間部、であ
る。 1 to 4 show a rotary valve according to an embodiment of the present invention, FIG. 1 is a longitudinal cross-sectional view showing a crankcase supercharged internal combustion engine, and FIG. 2 a is a cross-sectional view showing the rotary valve. , Figure 2 b is b- in Figure 2 a.
3 is an enlarged sectional view of the main part of the part in FIG. 2a, FIG. 4 is a cross-sectional view showing the operating state of the rotary valve, and FIG. It is a front view. In the drawings, 21a...channel, 25...rotary valve, 26, 27...rotary valve passage, 26a, 2
6b...Inlet and outlet of the passageway, _A0 ...inner diameter of the passageway, _A1 ...inner diameter of the middle part of the passageway, _A2 ...inner diameter of the inlet and outlet of the passageway, B...the middle part. .

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 流体の流路に介装され回動に伴つて前記流路を
開閉する通路を備えた筒状のロータリ弁において
、前記通路の中間部を前記流路と同一径に形成す
る一方、通路の入口および出口を前記流路よりも
大きい径に形成し、通路の中間部から入口および
出口に亘り膨出した曲面に形成したことを特徴と
するロータリ弁。 In a cylindrical rotary valve equipped with a passage that is interposed in a fluid passage and opens and closes the passage as it rotates, the intermediate part of the passage is formed to have the same diameter as the passage, while the entrance of the passage and a rotary valve, characterized in that the outlet is formed to have a larger diameter than the flow path, and is formed into a curved surface that bulges from the middle part of the passage to the inlet and the outlet.