JPS57120448A - High-frequency minute flow pump - Google Patents

High-frequency minute flow pump

Info

Publication number
JPS57120448A
JPS57120448A JP512281A JP512281A JPS57120448A JP S57120448 A JPS57120448 A JP S57120448A JP 512281 A JP512281 A JP 512281A JP 512281 A JP512281 A JP 512281A JP S57120448 A JPS57120448 A JP S57120448A
Authority
JP
Japan
Prior art keywords
voltage
input voltage
electrostrictive
valve
impressed
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
JP512281A
Other languages
Japanese (ja)
Inventor
Sadao Kakefu
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP512281A priority Critical patent/JPS57120448A/en
Publication of JPS57120448A publication Critical patent/JPS57120448A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D19/00—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase
    • G05D19/02—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Ink Jet (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE:To obtain the captioned pump whereby the range of fluctuation of pulsation is reduced by a method wherein the opening and closing of a suction valve and a delivery valve are driven forcedly in synchronization together with the driving of the change in capacity of a pressure chamber by using an electrostrictive unit having excellent response frequency. CONSTITUTION:On a circular electrostrictive unit 6 bonded to the vibration board of the pressure chamber is impressed AC input voltage va which is shifted from input voltage ei by about one-fourth of one wavelength, while on electrostrictive units 23 and 24 for driving the suction valve and the delivery valve are impressed the plus portion of voltage vb in the same direction with the input voltage ei and the minus portion of voltage vc in the reverse direction to the voltage ei both of which have the same phase with the voltage ei, respectively. The pump is in the stroke of suction during a period A, while it is in the stroke of delivery during a period B. Thus, the responsivity of 200-500Hz is obtained.
JP512281A 1981-01-19 1981-01-19 High-frequency minute flow pump Pending JPS57120448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP512281A JPS57120448A (en) 1981-01-19 1981-01-19 High-frequency minute flow pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP512281A JPS57120448A (en) 1981-01-19 1981-01-19 High-frequency minute flow pump

Publications (1)

Publication Number Publication Date
JPS57120448A true JPS57120448A (en) 1982-07-27

Family

ID=11602505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP512281A Pending JPS57120448A (en) 1981-01-19 1981-01-19 High-frequency minute flow pump

Country Status (1)

Country Link
JP (1) JPS57120448A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987286A (en) * 1982-11-11 1984-05-19 Ricoh Co Ltd Electric strain element pump
JPS61290202A (en) * 1985-06-18 1986-12-20 Ngk Spark Plug Co Ltd Pulse operating-type rotary driving device
JPS61290203A (en) * 1985-06-18 1986-12-20 Ngk Spark Plug Co Ltd Pulse operating-type linearly reciprocating driving device
JPS61291786A (en) * 1985-06-18 1986-12-22 Ngk Spark Plug Co Ltd Pulse operated type hydraulic pump
JPH038680U (en) * 1989-06-09 1991-01-28

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987286A (en) * 1982-11-11 1984-05-19 Ricoh Co Ltd Electric strain element pump
JPS61290202A (en) * 1985-06-18 1986-12-20 Ngk Spark Plug Co Ltd Pulse operating-type rotary driving device
JPS61290203A (en) * 1985-06-18 1986-12-20 Ngk Spark Plug Co Ltd Pulse operating-type linearly reciprocating driving device
JPS61291786A (en) * 1985-06-18 1986-12-22 Ngk Spark Plug Co Ltd Pulse operated type hydraulic pump
JPH038680U (en) * 1989-06-09 1991-01-28

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