GB1255896A - Fluidic oscillators - Google Patents

Fluidic oscillators

Info

Publication number
GB1255896A
GB1255896A GB777770A GB777770A GB1255896A GB 1255896 A GB1255896 A GB 1255896A GB 777770 A GB777770 A GB 777770A GB 777770 A GB777770 A GB 777770A GB 1255896 A GB1255896 A GB 1255896A
Authority
GB
United Kingdom
Prior art keywords
oscillator
fluid
passages
knife
inlet 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.)
Expired
Application number
GB777770A
Inventor
Gary L Innes
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Priority to GB777770A priority Critical patent/GB1255896A/en
Publication of GB1255896A publication Critical patent/GB1255896A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/22—Oscillators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

1,255,896. Fluid regulation. HONEYWELL Inc. Feb. 18, 1970, No. 7777/70. Heading G3H. A fluidic oscillator 10 comprises two housing parts 11 and 12 each formed with a chamber 15 and a converging - diverging passage 18, and a plate 13 formed with a knife-edge 21 and two longitudinal extensions 20, the plate, when sandwiched between the two housing parts, defining with the parts an inlet orifice located oppositely to the knife edge 21. Accordingly, fluid entering the inlet orifice is caused by the knife edge to oscillate between the two chambers 15 so providing pulses alternately from the two passages 18. The configuration of passages 18 ensures chocked flow and hence insensitivity to pressure changes. When used in conjunction with other apparatus, (37), Fig.4 (not shown), for sensing the temperature of fluid flowing through the oscillator, such as fluid from the combustion chamber of a gas turbine engine, the oscillator is surrounded by an insulated jacket (30) having an inlet port from which part of the fluid passes to the oscillator inlet port and the remainder to the space between the oscillator and jacket. Furthermore, the connection between the apparatus and oscillator is effected by means of a resonator tube (35). In an alternative arrangement, channel 19 in housing part 12, is connected directly to a transducer, amplifier and electronic counter (38, 39, 40).
GB777770A 1970-02-18 1970-02-18 Fluidic oscillators Expired GB1255896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB777770A GB1255896A (en) 1970-02-18 1970-02-18 Fluidic oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB777770A GB1255896A (en) 1970-02-18 1970-02-18 Fluidic oscillators

Publications (1)

Publication Number Publication Date
GB1255896A true GB1255896A (en) 1971-12-01

Family

ID=9839520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB777770A Expired GB1255896A (en) 1970-02-18 1970-02-18 Fluidic oscillators

Country Status (1)

Country Link
GB (1) GB1255896A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109296B2 (en) 2007-09-21 2012-02-07 Smc Kabushiki Kaisha Fluid flow passage structure and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109296B2 (en) 2007-09-21 2012-02-07 Smc Kabushiki Kaisha Fluid flow passage structure and manufacturing method thereof

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