JPH03119578U - - Google Patents

Info

Publication number
JPH03119578U
JPH03119578U JP3019090U JP3019090U JPH03119578U JP H03119578 U JPH03119578 U JP H03119578U JP 3019090 U JP3019090 U JP 3019090U JP 3019090 U JP3019090 U JP 3019090U JP H03119578 U JPH03119578 U JP H03119578U
Authority
JP
Japan
Prior art keywords
piston
cylinder
face
pump chamber
port
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
Application number
JP3019090U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3019090U priority Critical patent/JPH03119578U/ja
Publication of JPH03119578U publication Critical patent/JPH03119578U/ja
Pending legal-status Critical Current

Links

Description

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

第１図はピストンポンプの要部概略断面図、第
２図はピストンポンプの全体縦断面図である。 １……ピストン、２ａ……シリンダ、２３，２
４……大気吸入ポート（常圧気体吸入ポート）、
４１……負圧吸入ポート、４２……圧縮吐出ポー
ト、４３，４４…… 逆止弁、Ｐ１，Ｐ２……ポ
ンプ室。 FIG. 1 is a schematic sectional view of the main parts of a piston pump, and FIG. 2 is a longitudinal sectional view of the entire piston pump. 1...Piston, 2a...Cylinder, 23,2
4...Atmosphere suction port (normal pressure gas suction port),
41... Negative pressure suction port, 42... Compression discharge port, 43, 44... Check valve, P1, P2... Pump chamber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] シリンダ内で摺動往復するピストンの端面とシ
リンダ端面との間にピストンの作動に伴つて容積
が変化するポンプ室を形成し、上記シリンダ端面
には負圧吸入ポートと圧縮吐出ポートを開口せし
めて、上記負圧吸入ポートには上記ポンプ室の内
圧が相対的に低い時に開く逆止弁を設けるととも
に、上記圧縮吐出ポートには上記ポンプ室の内圧
が相対的に高い時に開く逆止弁を設け、かつ上記
シリンダの側壁には常時は上記ピストンの側壁に
より閉鎖されるとともに、上記ピストンが上記シ
リンダ端面より最も離隔後退した時に上記ポンプ
室に露出連通して常圧気体を導入する常圧気体吸
入ポートを開口せしめたことを特徴とするピスト
ンポンプ。 A pump chamber whose volume changes with the operation of the piston is formed between the end face of a piston that slides back and forth within the cylinder and the cylinder end face, and a negative pressure suction port and a compression discharge port are opened in the cylinder end face. The negative pressure suction port is provided with a check valve that opens when the internal pressure of the pump chamber is relatively low, and the compression discharge port is provided with a check valve that opens when the internal pressure of the pump chamber is relatively high. , and a normal pressure gas suction is provided on the side wall of the cylinder, which is normally closed by the side wall of the piston, and which is exposed and communicated with the pump chamber to introduce normal pressure gas when the piston is moved farthest away from the end face of the cylinder. A piston pump characterized by an open port.
JP3019090U 1990-03-23 1990-03-23 Pending JPH03119578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3019090U JPH03119578U (en) 1990-03-23 1990-03-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3019090U JPH03119578U (en) 1990-03-23 1990-03-23

Publications (1)

Publication Number Publication Date
JPH03119578U true JPH03119578U (en) 1991-12-10

Family

ID=31532919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3019090U Pending JPH03119578U (en) 1990-03-23 1990-03-23

Country Status (1)

Country Link
JP (1) JPH03119578U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007234470A (en) * 2006-03-02 2007-09-13 Idea System Kk Light emitting device
JPWO2009133615A1 (en) * 2008-05-01 2011-08-25 株式会社グローバルアイ Lighting equipment using LED
JP2011181533A (en) * 2011-06-24 2011-09-15 Panasonic Electric Works Co Ltd Light source, and illumination device using the same
JP2011198695A (en) * 2010-03-23 2011-10-06 Panasonic Electric Works Co Ltd Light source and illumination device using it
US10047939B2 (en) 2013-02-13 2018-08-14 Feif Electric Company, Inc. Linear LED lamp tube with internal driver and one or more mounting pins and a lighting device incorporating the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007234470A (en) * 2006-03-02 2007-09-13 Idea System Kk Light emitting device
JPWO2009133615A1 (en) * 2008-05-01 2011-08-25 株式会社グローバルアイ Lighting equipment using LED
JP2011198695A (en) * 2010-03-23 2011-10-06 Panasonic Electric Works Co Ltd Light source and illumination device using it
JP2011181533A (en) * 2011-06-24 2011-09-15 Panasonic Electric Works Co Ltd Light source, and illumination device using the same
US10047939B2 (en) 2013-02-13 2018-08-14 Feif Electric Company, Inc. Linear LED lamp tube with internal driver and one or more mounting pins and a lighting device incorporating the same
US10753588B2 (en) 2013-02-13 2020-08-25 Feit Electric Company, Inc. Linear LED lamp tube with internal driver and one or more electrically isolated pins
US11506371B2 (en) 2013-02-13 2022-11-22 Feit Electric Company, Inc. Linear LED lamp tube with one or more electrically isolated pins

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