FR2264579A1 - Gas filter with audible alarm - caused by gas flow in the inlet and activated by excessive pressure drop - Google Patents

Gas filter with audible alarm - caused by gas flow in the inlet and activated by excessive pressure drop

Info

Publication number
FR2264579A1
FR2264579A1 FR7508347A FR7508347A FR2264579A1 FR 2264579 A1 FR2264579 A1 FR 2264579A1 FR 7508347 A FR7508347 A FR 7508347A FR 7508347 A FR7508347 A FR 7508347A FR 2264579 A1 FR2264579 A1 FR 2264579A1
Authority
FR
France
Prior art keywords
pressure drop
inlet
gas
filter
activated
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
FR7508347A
Other languages
French (fr)
Other versions
FR2264579B1 (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.)
Engineering Components Ltd
Original Assignee
Engineering Components 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 Engineering Components Ltd filed Critical Engineering Components Ltd
Publication of FR2264579A1 publication Critical patent/FR2264579A1/en
Application granted granted Critical
Publication of FR2264579B1 publication Critical patent/FR2264579B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/60—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the intake of internal combustion engines or turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Emergency Alarm Devices (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

Gas filter has element through which gas passes. When the element becomes fouled the pressure drop across the filter increases and the gas flow will begin to fall. A device is located in the inlet stream which is coupled to a diaphragm valve and by this to the outlet line. This emits an audible signal when the pressure drop across the filter rises above a certain level. The audible signal is formed by a vibrating tongue in the inlet device whose movement is hindered by the diaphragm valve until the pressure difference is such that this moves and allows the tongue to vibrate.
FR7508347A 1974-03-20 1975-03-18 Gas filter with audible alarm - caused by gas flow in the inlet and activated by excessive pressure drop Granted FR2264579A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1240374 1974-03-20

Publications (2)

Publication Number Publication Date
FR2264579A1 true FR2264579A1 (en) 1975-10-17
FR2264579B1 FR2264579B1 (en) 1977-04-15

Family

ID=10003950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508347A Granted FR2264579A1 (en) 1974-03-20 1975-03-18 Gas filter with audible alarm - caused by gas flow in the inlet and activated by excessive pressure drop

Country Status (5)

Country Link
JP (1) JPS50133571A (en)
DE (1) DE2512088A1 (en)
FR (1) FR2264579A1 (en)
SE (1) SE7503127L (en)
ZA (1) ZA751653B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263805A (en) * 1979-10-10 1981-04-28 Teledyne Industries, Inc. Solid impurity detector
US4491458A (en) * 1983-03-28 1985-01-01 The Air Preheater Company, Inc. Method for detecting an overload of a fabric filter
DE3623164A1 (en) * 1986-07-10 1988-01-21 Hoelter Heinz Mounting sensors, preferably for motor vehicles
GB2267447B (en) * 1992-06-01 1995-09-06 Pall Corp The removal in aircraft of components from fluid mixtures

Also Published As

Publication number Publication date
DE2512088A1 (en) 1975-09-25
FR2264579B1 (en) 1977-04-15
AU7918575A (en) 1976-09-23
SE7503127L (en) 1975-09-22
JPS50133571A (en) 1975-10-22
ZA751653B (en) 1976-02-25

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Legal Events

Date Code Title Description
ST Notification of lapse