GB2019581A - Pressure sensing apparatus - Google Patents

Pressure sensing apparatus

Info

Publication number
GB2019581A
GB2019581A GB7915891A GB7915891A GB2019581A GB 2019581 A GB2019581 A GB 2019581A GB 7915891 A GB7915891 A GB 7915891A GB 7915891 A GB7915891 A GB 7915891A GB 2019581 A GB2019581 A GB 2019581A
Authority
GB
United Kingdom
Prior art keywords
pipe
holders
sensing
members
epoxy resin
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.)
Granted
Application number
GB7915891A
Other versions
GB2019581B (en
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.)
SCOTUS PATENTVERWALT
Original Assignee
SCOTUS PATENTVERWALT
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 SCOTUS PATENTVERWALT filed Critical SCOTUS PATENTVERWALT
Priority to GB7915891A priority Critical patent/GB2019581B/en
Publication of GB2019581A publication Critical patent/GB2019581A/en
Application granted granted Critical
Publication of GB2019581B publication Critical patent/GB2019581B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/003—Measuring variation of fuel pressure in high pressure line
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A pressure sensing apparatus for sensing cyclically varying pressure in a pipe, e.g. a fuel line comprises a pair of similar sensing members 307 each shaped to embrace a pipe over an arc ed and to make line contact with the pipe at two spaced locations. Piezoelectric transducers 308, one on each member, provide equal and opposite electrical signals in dependence on bending strain in the members 307 due to period dilation of the pipe. The sensing members are blocks located in holders 301 by an epoxy resin 313. Alternatively the blocks may be integral with the holders a cavity behind each block being filled with an epoxy resin. The two holders may be hinged together. <IMAGE>
GB7915891A 1978-02-08 1979-05-08 Pressure sensing apparatus Expired GB2019581B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7915891A GB2019581B (en) 1978-02-08 1979-05-08 Pressure sensing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB513278 1978-02-08
GB7915891A GB2019581B (en) 1978-02-08 1979-05-08 Pressure sensing apparatus

Publications (2)

Publication Number Publication Date
GB2019581A true GB2019581A (en) 1979-10-31
GB2019581B GB2019581B (en) 1982-10-13

Family

ID=26239673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7915891A Expired GB2019581B (en) 1978-02-08 1979-05-08 Pressure sensing apparatus

Country Status (1)

Country Link
GB (1) GB2019581B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138142A (en) * 1983-04-12 1984-10-17 Autosense Equipment Limited A transducer for use in detecting the pressure of high pressure fuel in the injection supply pipe of a compression ignition engine
GB2186089A (en) * 1986-02-05 1987-08-05 Thorn Emi Instr Monitoring system for a fuel- injection engine
EP0378312A2 (en) * 1989-01-10 1990-07-18 Rolls-Royce Motor Cars Limited Pressure measurement devices
US5144841A (en) * 1990-02-23 1992-09-08 Texas Instruments Incorporated Device for measuring pressures and forces
WO1998054555A1 (en) * 1997-05-28 1998-12-03 Förderverein Institut für Medizintechnik Dresden e.V. Device for measuring and/or detecting the internal pressure of lumens or flexible tubes
US7661322B2 (en) 2006-10-09 2010-02-16 Avl List Gmbh Piezoelectric sensor device with sensor housing and holder for holding a piezoelectric sensor element
CN101429912B (en) * 2007-11-06 2011-11-16 株式会社电装 Fuel injector with fuel pressure sensor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138142A (en) * 1983-04-12 1984-10-17 Autosense Equipment Limited A transducer for use in detecting the pressure of high pressure fuel in the injection supply pipe of a compression ignition engine
US4646563A (en) * 1983-04-12 1987-03-03 John Jones Transducer for use in detecting the pressure of high pressure fuel in the injection supply pipe of a compression ignition engine
GB2186089A (en) * 1986-02-05 1987-08-05 Thorn Emi Instr Monitoring system for a fuel- injection engine
EP0378312A2 (en) * 1989-01-10 1990-07-18 Rolls-Royce Motor Cars Limited Pressure measurement devices
EP0378312A3 (en) * 1989-01-10 1991-04-10 Rolls-Royce Motor Cars Limited Pressure measurement devices
AU637074B2 (en) * 1989-01-10 1993-05-20 Rolls-Royce Motor Cars Limited A pressure measurement device
US5144841A (en) * 1990-02-23 1992-09-08 Texas Instruments Incorporated Device for measuring pressures and forces
WO1998054555A1 (en) * 1997-05-28 1998-12-03 Förderverein Institut für Medizintechnik Dresden e.V. Device for measuring and/or detecting the internal pressure of lumens or flexible tubes
US6260416B1 (en) 1997-05-28 2001-07-17 Forderverein Institut Fur Medizintechnik Dresden E.V. Device for measuring and/or detecting the internal pressure of lumens of flexible tubes
US7661322B2 (en) 2006-10-09 2010-02-16 Avl List Gmbh Piezoelectric sensor device with sensor housing and holder for holding a piezoelectric sensor element
CN101429912B (en) * 2007-11-06 2011-11-16 株式会社电装 Fuel injector with fuel pressure sensor
US8402949B2 (en) 2007-11-06 2013-03-26 Denso Corporation Fuel injector with fuel pressure sensor

Also Published As

Publication number Publication date
GB2019581B (en) 1982-10-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee