GB779904A - Improvements in silencers for gaseous currents - Google Patents

Improvements in silencers for gaseous currents

Info

Publication number
GB779904A
GB779904A GB2618454A GB2618454A GB779904A GB 779904 A GB779904 A GB 779904A GB 2618454 A GB2618454 A GB 2618454A GB 2618454 A GB2618454 A GB 2618454A GB 779904 A GB779904 A GB 779904A
Authority
GB
United Kingdom
Prior art keywords
tube
casing
inlet
section
chambers
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
GB2618454A
Inventor
Gordon Heatherton Vokes
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.)
Vokes Ltd
Original Assignee
Vokes 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 Vokes Ltd filed Critical Vokes Ltd
Priority to GB2618454A priority Critical patent/GB779904A/en
Publication of GB779904A publication Critical patent/GB779904A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Abstract

779,904. Silencers for gaseous currents. VOKES, Ltd. Aug. 19, 1955 [Sept. 9, 1954], No. 26184/54. Class 7 (2). A tube leading into a low pressure chamber A is formed as a venturi whereby the velocity of the gases is increased within the tube, and is provided with one or more slots 13 in the wall thereof giving access to at least one chamber B of dimensions smaller than those of the chamber A. The air-intake silencer shown in Fig. 1, comprises a cylindrical casing 1 provided at one end with a curvilinear inlet passage 3 concentric with the inlet tube having a parallel-sided section 4 and terminating in a flared outlet section 5; a bridge-piece 6 spans the mouth of the tube and carries an end cap 9 which locates a crimped, cylindrical air filter 10. The diameter of the section 4 of the inlet tube is about one quarter of that of the casing 1. Chambers B, C formed by annular baffles 15, 16 communicate with the inlet tube by way of slots 13, 14. In a modification, an exhaust silencer comprises a cylindrical casing 21, Fig. 2, and an internal foraminous tube 26 between the inlet 22 and the outlet 24 of the casing, the inlet being formed with a convergent section from the outlet end of which the tube 26 is of substantially constant cross-section and equal to that of a tail pipe 27. The latter terminates in a narrowangle diffuser 32 surrounded by a chamber M, or chambers, to tune out the fundamental or selected harmonics of the resonant frequency of the tail pipe 27. Within the annular space between the casing 21 and the tube 26 is a divergent/convergent conical baffle 28 the interior of which is divided by annular baffles 29, 30, and 31 into two pairs of chambers E, K and F, L of different acoustic capacities; two further chambers G, H are provided between the baffle 28 and the casing 21.
GB2618454A 1954-09-09 1954-09-09 Improvements in silencers for gaseous currents Expired GB779904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2618454A GB779904A (en) 1954-09-09 1954-09-09 Improvements in silencers for gaseous currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2618454A GB779904A (en) 1954-09-09 1954-09-09 Improvements in silencers for gaseous currents

Publications (1)

Publication Number Publication Date
GB779904A true GB779904A (en) 1957-07-24

Family

ID=10239650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2618454A Expired GB779904A (en) 1954-09-09 1954-09-09 Improvements in silencers for gaseous currents

Country Status (1)

Country Link
GB (1) GB779904A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530648A (en) * 1967-04-18 1970-09-29 Citroen Sa Andre Combined air-filter and induction silencer
US3710562A (en) * 1972-03-27 1973-01-16 Sandmaster Co Dual element air filter
GB2391044A (en) * 2002-07-12 2004-01-28 Visteon Global Tech Inc Multi-chamber resonator system eg for vehicle i.c. engine air intake silencer
DE10110029B4 (en) * 2001-03-01 2012-10-11 Mahle Filtersysteme Gmbh Ring filter insert
CN108894955A (en) * 2018-08-28 2018-11-27 肇庆市高要区华锋电子铝箔有限公司 A kind of muffler and diaphragm pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530648A (en) * 1967-04-18 1970-09-29 Citroen Sa Andre Combined air-filter and induction silencer
US3710562A (en) * 1972-03-27 1973-01-16 Sandmaster Co Dual element air filter
DE10110029B4 (en) * 2001-03-01 2012-10-11 Mahle Filtersysteme Gmbh Ring filter insert
GB2391044A (en) * 2002-07-12 2004-01-28 Visteon Global Tech Inc Multi-chamber resonator system eg for vehicle i.c. engine air intake silencer
GB2391044B (en) * 2002-07-12 2005-05-11 Visteon Global Tech Inc Multi-chamber resonator
CN108894955A (en) * 2018-08-28 2018-11-27 肇庆市高要区华锋电子铝箔有限公司 A kind of muffler and diaphragm pump
CN108894955B (en) * 2018-08-28 2024-03-19 肇庆市高要区华锋电子铝箔有限公司 Muffler and diaphragm pump

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