GB887963A - An indicator device for filter units - Google Patents

An indicator device for filter units

Info

Publication number
GB887963A
GB887963A GB2313760A GB2313760A GB887963A GB 887963 A GB887963 A GB 887963A GB 2313760 A GB2313760 A GB 2313760A GB 2313760 A GB2313760 A GB 2313760A GB 887963 A GB887963 A GB 887963A
Authority
GB
United Kingdom
Prior art keywords
piston
spring
rib
chamber
filter
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
GB2313760A
Inventor
William Joseph Scavuzzo
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.)
Purolator Products Inc
Original Assignee
Purolator Products 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 Purolator Products Inc filed Critical Purolator Products Inc
Priority to GB2313760A priority Critical patent/GB887963A/en
Publication of GB887963A publication Critical patent/GB887963A/en
Expired 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
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
    • 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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
    • 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
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/021—Anti-rotational means

Abstract

887,963. Thermostatic filter-clogging indicators. PUROLATOR PRODUCTS Inc. July 1, 1960, No. 23137/60. Class 46. An indicator rod 16 having a flat face on an upper portion and a rib 33 on a lower portion is normally retained in an invisible position by engagement of the upper end of the rib under part of the cylindrical portion of a piston 14 movable in a cylindrical chamber 13 which partly intersects the cylindrical bore 15a in which rod 16 is located, the piston 14 normally being urged into contact with the left-hand end of chamber 13 by a spring 26a. Upon a predetermined pressure difference between a filter inlet 11 and outlet 12 being exceeded, the resistance of spring 26a is overcome until the Fig. 2 position is reached, where a notch 25 on piston 14 has come opposite the rib 33, permitting rod 16 to be forced upwards by a spring 32. Changes in atmospheric pressure (accessible to parts 14, 15 of the piston through bore 15a and loose fitting of the piston) are prevented from reaching and affecting the filter pressure conduits 20 and 17 by resilient rings 23, 24. At temperatures below a predetermined value, when excess pressure difference may be due only to high viscosity of the liquid (e.g. oil), being filtered, a bi-metallic coil 27 carrying a valve disc 29 closes inlet 18 of chamber 13 to prevent ingress of oil and thereby prevent actuation of the indicator device. U.S.A. Specification 2,878,936 is referred to.
GB2313760A 1960-07-01 1960-07-01 An indicator device for filter units Expired GB887963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2313760A GB887963A (en) 1960-07-01 1960-07-01 An indicator device for filter units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2313760A GB887963A (en) 1960-07-01 1960-07-01 An indicator device for filter units

Publications (1)

Publication Number Publication Date
GB887963A true GB887963A (en) 1962-01-24

Family

ID=10190750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2313760A Expired GB887963A (en) 1960-07-01 1960-07-01 An indicator device for filter units

Country Status (1)

Country Link
GB (1) GB887963A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10307700B2 (en) 2014-04-16 2019-06-04 Hydac Filtertechnik Gmbh Contamination indicator
CN117482662A (en) * 2023-12-25 2024-02-02 珠海格力智能装备有限公司 Control method, device, equipment and medium of dust removal system
CN117482662B (en) * 2023-12-25 2024-04-26 珠海格力智能装备有限公司 Control method, device, equipment and medium of dust removal system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10307700B2 (en) 2014-04-16 2019-06-04 Hydac Filtertechnik Gmbh Contamination indicator
DE102014014730B4 (en) * 2014-04-16 2021-05-27 Hydac Filtertechnik Gmbh Clogging indicator
CN117482662A (en) * 2023-12-25 2024-02-02 珠海格力智能装备有限公司 Control method, device, equipment and medium of dust removal system
CN117482662B (en) * 2023-12-25 2024-04-26 珠海格力智能装备有限公司 Control method, device, equipment and medium of dust removal system

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