JPS57203881A - Pump - Google Patents

Pump

Info

Publication number
JPS57203881A
JPS57203881A JP8769181A JP8769181A JPS57203881A JP S57203881 A JPS57203881 A JP S57203881A JP 8769181 A JP8769181 A JP 8769181A JP 8769181 A JP8769181 A JP 8769181A JP S57203881 A JPS57203881 A JP S57203881A
Authority
JP
Japan
Prior art keywords
wire
pump
piezo
voltage
casing
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
JP8769181A
Other languages
Japanese (ja)
Inventor
Soichi Inoue
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.)
Seikosha KK
Original Assignee
Seikosha 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 Seikosha KK filed Critical Seikosha KK
Priority to JP8769181A priority Critical patent/JPS57203881A/en
Publication of JPS57203881A publication Critical patent/JPS57203881A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE:To obtain a pump, economical, free of noises and simple in structure, by constituting a pump by inserting a piezoelectric wire hermetically into a casing, said piezo-electric wire being of the type which causes volume change when a voltage is impressed thereto, and causing volume change of the wire by impressing AC voltage to the same. CONSTITUTION:A piezo-electric wire 3 inserted into a pump casing 2 hermetically by use of a packing 14 has a piezo-electric material 3c charged between a center electrode 3a and an outer electrode 3b, and the outer surface of the outer electrode 3b is covered with an insulating coating 3d. With such an arrangement, when AC voltage is impressed on the wire 3 by a power source 4, the wire 3 causes expansion and contraction alternately. Therefore, fluid introduced into the casing 2 at the time of contraction of the wire 3 by forcing open a valve 7 of a suction port 5 is discharged to the outside with expansion of the wire 3 by forcing open a valve 8 connected to a discharge chamber 11.
JP8769181A 1981-06-08 1981-06-08 Pump Pending JPS57203881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8769181A JPS57203881A (en) 1981-06-08 1981-06-08 Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8769181A JPS57203881A (en) 1981-06-08 1981-06-08 Pump

Publications (1)

Publication Number Publication Date
JPS57203881A true JPS57203881A (en) 1982-12-14

Family

ID=13921944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8769181A Pending JPS57203881A (en) 1981-06-08 1981-06-08 Pump

Country Status (1)

Country Link
JP (1) JPS57203881A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5383102A (en) * 1976-12-28 1978-07-22 Nec Corp Pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5383102A (en) * 1976-12-28 1978-07-22 Nec Corp Pump

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