JPH02105585U - - Google Patents
Info
- Publication number
- JPH02105585U JPH02105585U JP1481589U JP1481589U JPH02105585U JP H02105585 U JPH02105585 U JP H02105585U JP 1481589 U JP1481589 U JP 1481589U JP 1481589 U JP1481589 U JP 1481589U JP H02105585 U JPH02105585 U JP H02105585U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- piston
- check valve
- cylinder
- guide hole
- 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図はこの考案の一実施例を示すバキユーム
ポンプの縦断面図、第２図は第１図のＡ―Ａ線断
面図、第３図は同じくＢ―Ｂ線断面図である。
１……ポンプハウジング、４……連通室、６…
…シリンダヘツド、９……カムシヤフト収容室、
１０……カムシヤフト、１６……シリンダ部、１
７……ガイド穴、２０……作動ピストン、２１…
…ピストン部、２２……ロツド部、２６……コン
ロツド、２９……クランク軸、３１……ポンプ室
、３３……吸入用チエツクバルブ、３７……吐出
用チエツクバルブ、４１……可変容積室、４２…
…排気路、４３……第２の吐出用チエツクバルブ
、４４……吸気路、４５……第２の吸入用チエツ
クバルブ、５０……バキユームポンプ。
FIG. 1 is a longitudinal sectional view of a vacuum pump showing an embodiment of this invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB. 1...Pump housing, 4...Communication chamber, 6...
...Cylinder head, 9...Camshaft housing chamber,
10...Camshaft, 16...Cylinder part, 1
7... Guide hole, 20... Working piston, 21...
... Piston part, 22 ... Rod part, 26 ... Conrod, 29 ... Crankshaft, 31 ... Pump chamber, 33 ... Suction check valve, 37 ... Discharge check valve, 41 ... Variable volume chamber, 42...
...Exhaust path, 43...Second discharge check valve, 44...Intake path, 45...Second suction check valve, 50...Vacuum pump.
Claims (1)
れるポンプハウジング内に設けたシリンダ部に、
作動ピストンのピストン部を摺動自在に嵌挿し、
前記ピストン部の一側に吸入用チエツクバルブと
吐出用チエツクバルブをそなえたポンプ室を形成
し、前記ポンプハウジングの内部に、前記シリン
ダ部と同軸で該シリンダ部よりも小径のガイド穴
と、該ガイド穴および前記シリンダヘツド内のカ
ムシヤフト収容室に連通する連通室とを設け、前
記作動ピストンの前記ピストン部に連設したロツ
ド部を前記ガイド穴内に摺動自在に嵌挿して前記
シリンダ部と前記ロツド部の間に可変容積室を形
成し、前記連通室内に延在するエンジンのカムシ
ヤフトの端部に突設したクランク輻に前記ロツド
部をコンロツドを介して連結するとともに、前記
可変容積室と前記連通室とを接続する吸気路に第
２の吸入用チエツクバルブを設け、前記可変容積
室と前記連通室とを接続する排気路に第２の吐出
用チエツクバルブを設けたことを特徴とするピス
トン摺動式バキユームポンプ。 The cylinder part installed inside the pump housing is attached to the side end of the cylinder head of the engine.
Insert the piston part of the operating piston so that it can slide freely,
A pump chamber equipped with a suction check valve and a discharge check valve is formed on one side of the piston part, and a guide hole coaxial with the cylinder part and having a smaller diameter than the cylinder part is formed inside the pump housing. A guide hole and a communication chamber communicating with a camshaft housing chamber in the cylinder head are provided, and a rod portion of the actuating piston connected to the piston portion is slidably inserted into the guide hole to connect the cylinder portion and the camshaft housing chamber. A variable volume chamber is formed between the rod portions, and the rod portions are connected via connecting rods to a crankshaft protruding from the end of the camshaft of the engine extending into the communication chamber. A piston characterized in that a second suction check valve is provided in an intake passage connecting the communication chamber, and a second discharge check valve is provided in an exhaust passage connecting the variable volume chamber and the communication chamber. Sliding vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1481589U JPH02105585U (en) | 1989-02-09 | 1989-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1481589U JPH02105585U (en) | 1989-02-09 | 1989-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02105585U true JPH02105585U (en) | 1990-08-22 |
Family
ID=31226342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1481589U Pending JPH02105585U (en) | 1989-02-09 | 1989-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02105585U (en) |
-
1989
- 1989-02-09 JP JP1481589U patent/JPH02105585U/ja active Pending