US3612213A - Silent housing for air pumps and compressors - Google Patents

Silent housing for air pumps and compressors Download PDF

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Publication number
US3612213A
US3612213A US35707A US3612213DA US3612213A US 3612213 A US3612213 A US 3612213A US 35707 A US35707 A US 35707A US 3612213D A US3612213D A US 3612213DA US 3612213 A US3612213 A US 3612213A
Authority
US
United States
Prior art keywords
valve
air
housing
valves
outlet
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 - Lifetime
Application number
US35707A
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English (en)
Inventor
Zoltan Piko
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.)
Medicor Muvek
Original Assignee
Medicor Muvek
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 Medicor Muvek filed Critical Medicor Muvek
Application granted granted Critical
Publication of US3612213A publication Critical patent/US3612213A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0033—Pulsation and noise damping means with encapsulations
    • F04B39/0038—Pulsation and noise damping means with encapsulations of inlet or outlet channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Definitions

  • SILENT HOUSING FOR AIR PUMPS AND ABSTRACT A silent housing for air pumps and compressors is of sound-deadening material and has an air inlet filter, a pair of air intake resonant valves tunable to an upper frequency of the pump or compressor, and a pair of outlet valves tuned to the same frequency as the intake valves and discharging in opposite directions into a common outlet channel for sound interference.
  • the present invention relates to silent housings for air pumps and compressors.
  • Silent operation can be achieved by the provision of a central air supply network, but such a system is undesirable because it is fixed and involves complicated piping and high initial cost.
  • Another object of the present invention is the provision of such housings that will permit a high rate of air delivery for a relatively small installation.
  • a further object of the present invention is the provision of such a housing which will be portable.
  • FIG. 1 is a somewhat schematic perspective view of a housing according to the present invention.
  • FIG. 2 is a cross-sectional view, on an enlarged scale, of a tunable resonant valve for use in the housing of FIG. 1.
  • FIG. 1 there is shown a housing 1 for a pneumatic pump or compressor, made of a conventional sound-deadening material, and having an air inlet through a porous soundabsorbing air filter 2. Air from filter 2 then proceeds in parallel paths to a pair of resonantly tunable intake valves 3 and 4, which are both tuned to the same frequency which is an upper harmonic of the speed of the pump or compressor.
  • the air proceeds to the pump or compressor (not shown) which is housed in the region 5 of the housing I. From the outlet of the pump or compressor, the air then enters a pair of resonantly tunable outlet valves 6 and 7 which are both tuned to the same frequency as each other and the same frequency as valves 3 and 4. From the valves 6 and 7, the air continues to follow the paths shown by the arrows in FIG. I, and enters opposite ends of a sound-interference air conduit 8. The oppositely moving streams of air in conduit 8 move at an angle of 180 to each other and meet at the midpoint of the conduit 8 with a sound-deadening effect, and then leave the housing through outlet fitting 9 with a minimum of noise.
  • each of these valves comprises a stem 10 which is externally screwthreaded and which has a slot 10a at one end for longitudinal adjustment by rotation with a tool, and an abutment shoulder 10b at the other end.
  • Shoulder 10b bears against a coil compression spring 11 with an adjustable force that tunes the valve.
  • Spring 11 bears against a valve member in the form of a ball 12.
  • the valve body 13 screw-threadedly receives stem 10 and is provided with a valve chamber 13a within which the abutment shoulder 10b, the spring 11, and the ball 12 are disposed.
  • Body 13 also has outlet orifices 13b for the escape of air from the open valve.
  • Stem 10 is sealed against valve body 13 by an annular sealing washer 14 at one end of chamber 13a; and at its other end,
  • chamber 13a is closed by an inlet fitting 15 which provides a valve seat and which has an axial inlet opening 15a that is closed by the ball 12.
  • cap 16 which is removably screw-threadedly secured thereto, selectively to expose or to cover the slot 10a.
  • a silent housing for air pumps and compressors comprising a sound-deadening air inlet filter, at least one inlet valve that receives air from the filter and that releases air to the pump or compressor in the housing, means to tune said at least one inlet valve to an upper harmonic of the speed of the pump or compressor, at least one outlet valve that receives air from the pump or compressor, means to tune the said at least one outlet valve to said upper harmonic, and means to discharge air from said at least one outlet valve to the exterior of the housing.
  • a housing as claimed in claim I there being a pair of said outlet valves in parallel, said discharge means comprising a channel to which air is discharged from said outlet valves in opposite directions from opposite ends of the channel, said channel having an outlet intermediate its ends.
  • each of said valves including a valve member for closing the valve and means yieldably urging the valve member toward closed position against the force of air entering the valve.
  • each of said valves comprising a valve body, a valve seat at one end of the body, a valve member seated on the valve seat, a resilient element urging the valve member against the valve seat, a spindle screwthreadedly disposed in the valve body and bearing against said resilient element, and means to rotate said spindle to adjust the stress in said resilient element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compressor (AREA)
  • Details Of Valves (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US35707A 1969-05-12 1970-05-08 Silent housing for air pumps and compressors Expired - Lifetime US3612213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUME1061A HU163005B (zh) 1969-05-12 1969-05-12

Publications (1)

Publication Number Publication Date
US3612213A true US3612213A (en) 1971-10-12

Family

ID=10999201

Family Applications (1)

Application Number Title Priority Date Filing Date
US35707A Expired - Lifetime US3612213A (en) 1969-05-12 1970-05-08 Silent housing for air pumps and compressors

Country Status (7)

Country Link
US (1) US3612213A (zh)
DE (1) DE2024544A1 (zh)
DK (1) DK134194B (zh)
FR (1) FR2047590A5 (zh)
GB (1) GB1306386A (zh)
HU (1) HU163005B (zh)
NL (1) NL7006829A (zh)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838944A (en) * 1971-08-27 1974-10-01 E Kolfertz Diaphragm pumps with pressure equalising chambers
US4610604A (en) * 1984-03-21 1986-09-09 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash-plate-type compressor with a muffling arrangement
US5253486A (en) * 1990-05-01 1993-10-19 Masanori Sugahara Silencer attenuating a noise from a noise source to be ventilated and a method for active control of its noise attenuation system
WO1998003793A1 (en) * 1996-07-23 1998-01-29 Aggreko Internal combustion engine driven oil-free compressor with sound attenuating structure
US6039547A (en) * 1997-09-04 2000-03-21 Ingersoll-Rand Company Compressor with compressor base that includes fluid supply openings
US20060147316A1 (en) * 2004-09-27 2006-07-06 Santa Ana Roland C Quiet fluid pump
US20090071746A1 (en) * 2007-09-17 2009-03-19 Premier Innovations, Inc. Noise isolation device for swimming pool pumps and other machinery
CN103174682A (zh) * 2011-12-23 2013-06-26 技嘉科技股份有限公司 风扇模块
CN104265691A (zh) * 2014-10-11 2015-01-07 南京磁谷科技有限公司 具有冷却消音功能的离心式鼓风机机柜及其冷却消音方法
CN105065232A (zh) * 2015-09-12 2015-11-18 浙江鸿友压缩机制造有限公司 一种双缸空气压缩机进气消声装置
CN103174682B (zh) * 2011-12-23 2016-12-14 技嘉科技股份有限公司 风扇模块
US20180187962A1 (en) * 2016-07-11 2018-07-05 Logan H. Stollenwerck, III Cooler divider

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014085A1 (en) * 1979-01-30 1980-08-06 Glynwed Group Services Limited Air compressor equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1922200A (en) * 1931-09-15 1933-08-15 Westinghouse Electric & Mfg Co Air cooled combustion engine
US2935244A (en) * 1958-05-08 1960-05-03 Gen Electric Muffler arrangement for hermetic compressors
US3273596A (en) * 1966-09-20 Hydraulic pulsation absorber
US3478958A (en) * 1968-01-11 1969-11-18 Ingersoll Rand Co Housing for portable machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273596A (en) * 1966-09-20 Hydraulic pulsation absorber
US1922200A (en) * 1931-09-15 1933-08-15 Westinghouse Electric & Mfg Co Air cooled combustion engine
US2935244A (en) * 1958-05-08 1960-05-03 Gen Electric Muffler arrangement for hermetic compressors
US3478958A (en) * 1968-01-11 1969-11-18 Ingersoll Rand Co Housing for portable machines

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838944A (en) * 1971-08-27 1974-10-01 E Kolfertz Diaphragm pumps with pressure equalising chambers
US4610604A (en) * 1984-03-21 1986-09-09 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash-plate-type compressor with a muffling arrangement
US5253486A (en) * 1990-05-01 1993-10-19 Masanori Sugahara Silencer attenuating a noise from a noise source to be ventilated and a method for active control of its noise attenuation system
WO1998003793A1 (en) * 1996-07-23 1998-01-29 Aggreko Internal combustion engine driven oil-free compressor with sound attenuating structure
US5873708A (en) * 1996-07-23 1999-02-23 Aggreko, Inc. Oil-free compressor using special gearing assembly between engine and compressor
US6039547A (en) * 1997-09-04 2000-03-21 Ingersoll-Rand Company Compressor with compressor base that includes fluid supply openings
US7563077B2 (en) * 2004-09-27 2009-07-21 Santa Ana Roland C Quiet fluid pump
US20060147316A1 (en) * 2004-09-27 2006-07-06 Santa Ana Roland C Quiet fluid pump
US20090071746A1 (en) * 2007-09-17 2009-03-19 Premier Innovations, Inc. Noise isolation device for swimming pool pumps and other machinery
US7874400B2 (en) * 2007-09-17 2011-01-25 Premier Innovations, Inc. Noise isolation device for swimming pool pumps and other machinery
CN103174682A (zh) * 2011-12-23 2013-06-26 技嘉科技股份有限公司 风扇模块
CN103174682B (zh) * 2011-12-23 2016-12-14 技嘉科技股份有限公司 风扇模块
CN104265691A (zh) * 2014-10-11 2015-01-07 南京磁谷科技有限公司 具有冷却消音功能的离心式鼓风机机柜及其冷却消音方法
CN105065232A (zh) * 2015-09-12 2015-11-18 浙江鸿友压缩机制造有限公司 一种双缸空气压缩机进气消声装置
CN105065232B (zh) * 2015-09-12 2017-11-07 浙江鸿友压缩机制造有限公司 一种双缸空气压缩机进气消声装置
US20180187962A1 (en) * 2016-07-11 2018-07-05 Logan H. Stollenwerck, III Cooler divider
US10473384B2 (en) * 2016-07-11 2019-11-12 Logan H. Stollenwerck, III Cooler divider

Also Published As

Publication number Publication date
GB1306386A (zh) 1973-02-07
DK134194B (da) 1976-09-27
HU163005B (zh) 1973-05-28
DK134194C (zh) 1977-02-28
FR2047590A5 (zh) 1971-03-12
DE2024544A1 (de) 1971-11-25
NL7006829A (zh) 1970-11-16

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