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JPS6419189A - Vacuum pump - Google Patents

Vacuum pump

Info

Publication number
JPS6419189A
JPS6419189A JP17394887A JP17394887A JPS6419189A JP S6419189 A JPS6419189 A JP S6419189A JP 17394887 A JP17394887 A JP 17394887A JP 17394887 A JP17394887 A JP 17394887A JP S6419189 A JPS6419189 A JP S6419189A
Authority
JP
Japan
Prior art keywords
stroke
return spring
solenoid mechanism
return
electromagnet
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
JP17394887A
Other languages
Japanese (ja)
Inventor
Akito Uchida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagano Keiki Seisakusho KK
Original Assignee
Nagano Keiki Seisakusho KK
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 by Nagano Keiki Seisakusho KK filed Critical Nagano Keiki Seisakusho KK
Priority to JP17394887A priority Critical patent/JPS6419189A/en
Priority to US07/218,775 priority patent/US4966533A/en
Publication of JPS6419189A publication Critical patent/JPS6419189A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

PURPOSE:To make the captioned pump compact by forming an armature in between a core and a pump chamber, carrying out a suction stroke by means of a solenoid mechanism, and carrying out a return stroke by means of a return spring. CONSTITUTION:An armature part 13 is provided on a piston shaft 4 in an operating chamber 3 forming a solenoid mechanism together with a core 14 and coils 15. In a suction stroke, an electromagnet M is excited operating the solenoid mechanism and a suction valve 9 is opened to suck in air. In a return stroke, the electromagnet M is not excited and the piston shaft 4 is moved to the right by the action of a return spring 18. Hence, the return spring can be formed small making the whole device compact.
JP17394887A 1987-07-14 1987-07-14 Vacuum pump Pending JPS6419189A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17394887A JPS6419189A (en) 1987-07-14 1987-07-14 Vacuum pump
US07/218,775 US4966533A (en) 1987-07-14 1988-07-14 Vacuum pump with rotational sliding piston support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17394887A JPS6419189A (en) 1987-07-14 1987-07-14 Vacuum pump

Publications (1)

Publication Number Publication Date
JPS6419189A true JPS6419189A (en) 1989-01-23

Family

ID=15970034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17394887A Pending JPS6419189A (en) 1987-07-14 1987-07-14 Vacuum pump

Country Status (1)

Country Link
JP (1) JPS6419189A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547446U (en) * 1991-11-29 1993-06-25 日東工器株式会社 Electromagnetic reciprocating pump
EP0793019A2 (en) * 1996-03-01 1997-09-03 The BOC Group plc Improvements in vacuum pumps
WO2005090786A1 (en) * 2004-03-22 2005-09-29 Shinano Kenshi Kabushiki Kaisha Electromagnetic pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4971448A (en) * 1972-10-02 1974-07-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4971448A (en) * 1972-10-02 1974-07-10

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547446U (en) * 1991-11-29 1993-06-25 日東工器株式会社 Electromagnetic reciprocating pump
EP0793019A2 (en) * 1996-03-01 1997-09-03 The BOC Group plc Improvements in vacuum pumps
EP0793019A3 (en) * 1996-03-01 1999-06-02 The BOC Group plc Improvements in vacuum pumps
WO2005090786A1 (en) * 2004-03-22 2005-09-29 Shinano Kenshi Kabushiki Kaisha Electromagnetic pump

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