JPS6266277U - - Google Patents
Info
- Publication number
- JPS6266277U JPS6266277U JP15887685U JP15887685U JPS6266277U JP S6266277 U JPS6266277 U JP S6266277U JP 15887685 U JP15887685 U JP 15887685U JP 15887685 U JP15887685 U JP 15887685U JP S6266277 U JPS6266277 U JP S6266277U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- crankcase
- valve
- vacuum pump
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
第１図、第２図は本考案の第１の実施例に係り
、第１図は本実施例による往復動型真空ポンプの
縦断面図、第２図はゴム製一方向弁にして、第２
図ａはその正面図、第２図ｂは側面図を示し、第
３図は本考案の第２の実施例による一方向弁を示
す縦断面図である。
１…クランクケース、４…クランク軸、９…シ
リンダ、１１…ピストン、１４…連接棒、１７…
弁座部材、１８…吸込弁、１９…吐出弁、２０…
シリンダヘツド、２３，３１…一方向弁、Ａ…密
閉空間、Ｂ…シリンダ室。
1 and 2 relate to a first embodiment of the present invention, FIG. 1 is a vertical sectional view of a reciprocating vacuum pump according to this embodiment, and FIG. 2 is a one-way valve made of rubber, 2
Figure a is a front view thereof, Figure 2b is a side view thereof, and Figure 3 is a longitudinal sectional view showing a one-way valve according to a second embodiment of the present invention. 1... Crank case, 4... Crankshaft, 9... Cylinder, 11... Piston, 14... Connecting rod, 17...
Valve seat member, 18... Suction valve, 19... Discharge valve, 20...
Cylinder head, 23, 31...one-way valve, A...closed space, B...cylinder chamber.
Claims (1)
ースと、該クランクケースに設けられたシリンダ
と、該シリンダ内に往復動自在に設けられ、連接
棒を介して前記クランク軸と連結されたピストン
と、前記シリンダの上端に設けられた弁座部材と
に組込まれた吸込弁、吐出弁とを備えた往復動型
真空ポンプにおいて、前記クランクケース内を密
閉空間とし、前記クランクケースにはその内部が
加圧状態にあるときには外部に気体を放出し、負
圧状態にあるときには外部からの気体の流入を阻
止する一方向弁を設けたことを特徴とする往復動
型真空ポンプ。 a crankcase in which a crankshaft is rotatably provided; a cylinder provided in the crankcase; a piston provided in the cylinder to be reciprocally movable and connected to the crankshaft via a connecting rod; In a reciprocating vacuum pump equipped with a valve seat member provided at the upper end of a cylinder, and a suction valve and a discharge valve built into the cylinder, the inside of the crankcase is a sealed space, and the inside of the crankcase is pressurized. A reciprocating vacuum pump characterized by being provided with a one-way valve that releases gas to the outside when in a negative pressure state and prevents gas from flowing in from the outside when in a negative pressure state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15887685U JPS6266277U (en) | 1985-10-17 | 1985-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15887685U JPS6266277U (en) | 1985-10-17 | 1985-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6266277U true JPS6266277U (en) | 1987-04-24 |
Family
ID=31082774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15887685U Pending JPS6266277U (en) | 1985-10-17 | 1985-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6266277U (en) |
-
1985
- 1985-10-17 JP JP15887685U patent/JPS6266277U/ja active Pending