US20030126983A1 - Intake noise muffler and method of making and using same - Google Patents

Intake noise muffler and method of making and using same Download PDF

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Publication number
US20030126983A1
US20030126983A1 US10/319,809 US31980902A US2003126983A1 US 20030126983 A1 US20030126983 A1 US 20030126983A1 US 31980902 A US31980902 A US 31980902A US 2003126983 A1 US2003126983 A1 US 2003126983A1
Authority
US
United States
Prior art keywords
filter element
intake
housing
cap
intake noise
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.)
Abandoned
Application number
US10/319,809
Other languages
English (en)
Inventor
Jan Pfingst
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.)
Dr Ing HCF Porsche AG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to DR. ING, H.C.F. PORSCHE AG reassignment DR. ING, H.C.F. PORSCHE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PFINGST, JAN
Publication of US20030126983A1 publication Critical patent/US20030126983A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units

Definitions

  • the invention relates to an intake noise muffler for a brake booster, comprising a filter element on a pedal-side control valve housing.
  • a brake booster which has a control valve housing enclosed by bellows and having feeds for intake air to the brake booster by way of air inlet openings which are covered by a filter element consisting of a sound absorbing material.
  • this aspect can be achieved in that the housing is surrounded by the filter element, which is gas-permeable and noise muffling, constructed as a tube, which filter element is further constructed in a dimensionally stable manner and with a plurality of pores and is tightly closed off on a face side by way of a cap. Additional advantageous characteristics are contained below and in other embodiments.
  • a principal advantage achieved by way of certain preferred embodiments of the invention is that a filter element is used as an intake noise muffler which has an optimal noise-muffling effect while the flow resistance of the intake air is low.
  • the distributor housing of the brake booster is surrounded by a gas-permeable and noise muffling filter element which, in particular, is constructed as a tube, has a dimensionally stable construction, is constructed with a plurality of pores and, on the face-side, is tightly closed off by a cap.
  • the filter element is of a porous sintered material.
  • a possible versatile usability of the filter element can be influenced by the forming, particularly by the size, of the pores as well as by the wall thickness of the tube element.
  • the intake surface of the filter element has a length which is formed between a connection at the distributor housing and another connection on the cap, a maximally large intake surface can be created, whereby the target conflict of the noise muffling and the flow resistance can be favorably influenced.
  • the filter element By the use of a porous sintered plastic material for the filter element, a maximal noise muffling is possible while the flow resistance is low, and furthermore, the filter element has a dimensionally stable construction, whereby no additional support or support housing is required.
  • the filter element is preferably arranged coaxially to the sleeve of a housing of the brake booster and extends close to the cap, in which case the intake air can be fed in a labyrinth-type manner to the housing.
  • the filter element extends beyond the entire possible length of this sleeve of the housing so that an inflow space for the intake air is formed between the face-side cap of the filter element and a mouth opening of the sleeve.
  • a receiving device is provided for an operating rod of the brake booster.
  • the filter element as well as the cap may comprise an identical gas-permeable and noise-muffling material.
  • the filter element may be constructed in one piece with the cap and may jointly comprise a gas-permeable and noise-muffling material as a whole.
  • the used material for the filter element is a porous-sintered plastic material (such as polyethylene) which has a large noise-muffling effect while the flow resistance is low.
  • the noise muffling and the flow resistance can be adjusted by way of the used pore size and the wall thickness of the filter element.
  • the target conflict of the noise muffling and the flow resistance is favorably influenced by the use of an intake surface which is as large as possible.
  • FIG. 1 shows a sectional view of an intake noise muffler comprising a filter element made of a porous sintered plastic material.
  • An intake noise muffler 1 for a brake booster 2 which is not shown in detail, has a filter element 5 constructed as a tube on its control valve housing 4 , 4 a .
  • This filter element 5 is fastened by way of one end 6 to the housing 4 and, at its other end, which faces away, is closed off on the face-side by a cap 7 .
  • the filter element 5 is of a porous sintered material and is constructed to be dimensionally stable, that is, self-supporting.
  • the indicated arrows represent the feeding of intake air L into the brake booster 2 .
  • the filter element 5 extends along the entire length I of the distributor housing 4 , 4 a as well as beyond it, for forming a spatial gap 8 between the free end of a sleeve 4 a of the housing 4 and the closing-off cap 7 .
  • This spatial gap 8 the intake air L is fed to a mouth opening 9 of the sleeve 4 a .
  • the exterior surface F of the filter element 5 has a length I which is formed between a connection V 1 on the housing 4 , 4 a and a connection V 2 on the cap 7 .
  • the filter element 5 is preferably arranged coaxially with respect to the sleeve 4 a of the housing 4 so that an annulus 10 is formed, by way of which the intake air L is fed to the face-side mouth opening 9 .
  • a receiving device 11 for an operating rod 12 of the brake booster 2 is provided in the cap 7 .
  • the filter element 5 and the cap 7 may be produced from the same material.
  • the filter element 5 with the cap 7 may be one piece of the same material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Massaging Devices (AREA)
US10/319,809 2001-12-14 2002-12-16 Intake noise muffler and method of making and using same Abandoned US20030126983A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE10161436.5 2001-12-14
DE10161436A DE10161436C1 (de) 2001-12-14 2001-12-14 Ansauggeräuschdämpfer

Publications (1)

Publication Number Publication Date
US20030126983A1 true US20030126983A1 (en) 2003-07-10

Family

ID=7709181

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/319,809 Abandoned US20030126983A1 (en) 2001-12-14 2002-12-16 Intake noise muffler and method of making and using same

Country Status (5)

Country Link
US (1) US20030126983A1 (de)
EP (1) EP1321341B8 (de)
JP (1) JP2003191833A (de)
AT (1) ATE398558T1 (de)
DE (2) DE10161436C1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150046053A1 (en) * 2012-03-08 2015-02-12 Robert Bosch Gmbh Method for operating a brake booster of a vehicle and control device for a brake booster of a vehicle
CN104386055A (zh) * 2014-11-10 2015-03-04 昌通科技有限公司 江淮带缓速和过滤网的制动总阀

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928121B1 (fr) * 2008-03-03 2010-05-07 Peugeot Citroen Automobiles Sa Amplificateur pneumatique d'effort de freinage de vehicule automobile a filtre interchangeable, support de filtre, et filtre interchangeable associes
KR101183288B1 (ko) * 2010-09-18 2012-09-14 주식회사 만도 배력장치의 소음기 및 이를 갖춘 차량용 배력장치

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800770A (en) * 1953-07-20 1957-07-30 Dewandre Co Ltd C Servo braking apparatus
US4236597A (en) * 1977-04-08 1980-12-02 Futober Epuletgepeszeti Termekeket Gyarto Vallalat Sound-absorbing device, especially for damping of noises expanding in air ducts
US5528975A (en) * 1993-06-14 1996-06-25 Alliedsignaleurope Services Techniques Booster with a porous bellows forming a filter
US5778754A (en) * 1994-11-07 1998-07-14 Lucas Industries Public Limited Company Valve assembly
US5860400A (en) * 1997-09-17 1999-01-19 Siemens Electric Limited Intake-exhaust manifold bridge noise attenuation system and method
US6119578A (en) * 1998-02-27 2000-09-19 Bosch Systemes De Freinage Servomotor using a controlled density filter
US6477935B1 (en) * 1998-09-26 2002-11-12 Continental Teves Ag & Co., Ohg Vacuum brake booster

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1207573A (en) * 1968-01-22 1970-10-07 Automotive Prod Co Ltd Improvements in and relating to fluid pressure operated servo motors
GB2051270A (en) * 1979-06-12 1981-01-14 Lucas Industries Ltd Booster for vehicle braking system
DE4027562C2 (de) * 1990-08-31 2000-07-27 Continental Teves Ag & Co Ohg Unterdruck-Bremskraftverstärker
FR2676413A1 (fr) * 1991-05-14 1992-11-20 Bendix Europ Services Tech Servomoteur pneumatique.
US5207770A (en) * 1992-01-29 1993-05-04 Allied-Signal Inc. Modifier for vacuum booster reaction force
FR2712549B1 (fr) * 1993-11-16 1996-01-05 Alliedsignal Europ Services Servomoteur pneumatique à fonctionnement silencieux.
DE19636169A1 (de) * 1996-09-06 1998-03-12 Teves Gmbh Alfred Pneumatischer Bremskraftverstärker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800770A (en) * 1953-07-20 1957-07-30 Dewandre Co Ltd C Servo braking apparatus
US4236597A (en) * 1977-04-08 1980-12-02 Futober Epuletgepeszeti Termekeket Gyarto Vallalat Sound-absorbing device, especially for damping of noises expanding in air ducts
US5528975A (en) * 1993-06-14 1996-06-25 Alliedsignaleurope Services Techniques Booster with a porous bellows forming a filter
US5778754A (en) * 1994-11-07 1998-07-14 Lucas Industries Public Limited Company Valve assembly
US5860400A (en) * 1997-09-17 1999-01-19 Siemens Electric Limited Intake-exhaust manifold bridge noise attenuation system and method
US6119578A (en) * 1998-02-27 2000-09-19 Bosch Systemes De Freinage Servomotor using a controlled density filter
US6477935B1 (en) * 1998-09-26 2002-11-12 Continental Teves Ag & Co., Ohg Vacuum brake booster

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150046053A1 (en) * 2012-03-08 2015-02-12 Robert Bosch Gmbh Method for operating a brake booster of a vehicle and control device for a brake booster of a vehicle
US9573575B2 (en) * 2012-03-08 2017-02-21 Robert Bosch Gmbh Method for operating a brake booster of a vehicle and control device for a break booster of a vehicle
CN104386055A (zh) * 2014-11-10 2015-03-04 昌通科技有限公司 江淮带缓速和过滤网的制动总阀

Also Published As

Publication number Publication date
EP1321341B8 (de) 2008-08-13
EP1321341A3 (de) 2003-07-09
ATE398558T1 (de) 2008-07-15
EP1321341A2 (de) 2003-06-25
JP2003191833A (ja) 2003-07-09
DE10161436C1 (de) 2003-07-03
DE50212382D1 (de) 2008-07-31
EP1321341B1 (de) 2008-06-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DR. ING, H.C.F. PORSCHE AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PFINGST, JAN;REEL/FRAME:013882/0967

Effective date: 20021216

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION