US20120003915A1 - Air Breather Valve Assembly - Google Patents

Air Breather Valve Assembly Download PDF

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Publication number
US20120003915A1
US20120003915A1 US13/059,028 US200813059028A US2012003915A1 US 20120003915 A1 US20120003915 A1 US 20120003915A1 US 200813059028 A US200813059028 A US 200813059028A US 2012003915 A1 US2012003915 A1 US 2012003915A1
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US
United States
Prior art keywords
air
exhaust
assembly
vent assembly
chamber
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
US13/059,028
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English (en)
Inventor
Arun Kumar Sinha
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Individual
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
Publication of US20120003915A1 publication Critical patent/US20120003915A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/0011—Breather valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only

Definitions

  • the present invention relates to a device for stabilizing air-pressure mechanically enclosed environment. More particularly the present invention relates to a vacuum relief valve and/or air breather valve in a mechanically closed environment.
  • the present invention is therefore designed in particular to substitute the vent hose assembly and breather vent and thereby which controls and dynamically regulates the pressure or vacuum of the area.
  • Breather Vents permit free exchange of filtered air for gear cases, crank cases vented to atmosphere. Rugged and corrosion resistant, some breather vent models can be adapted to incorporate oil separators for special applications.
  • the basic model of breather vent passes air through a filter media stopping solid particles.
  • a micro metal filter (100 micrometers or finer) is an option for use in areas where high temperature, corrosive vapors or fine filtration issues exist.
  • crankcase pressure In most internal combustion engines, it is desirable to maintain the pressure within the crankcase at a level equal to or slightly less than atmospheric pressure to reduce leaks through gaskets and seals from the crankcase to the atmosphere.
  • blow by gases are emitted in the crankcase as a result of leaks of the air-fuel intake mixture and combustion gases through the clearances around piston rings during 25 the compression, combustion and/or exhaust cycles. Because of these blow-by gases, the internal crankcase pressure will inherently rise promoting oil leakage from the crankcase to the surrounding environment.
  • a transmission fluid Since are often Subjected to extreme temperature variations, it is desirable for a transmission fluid to function somewhat consistently over the vehicle operating range. In addition to variations in ambient operating temperatures, a transmission fluid is also subjected to heat generated by friction produced by the numerous rotating components. This temperature fluctuation is manifested as a change in viscosity of the transmission fluid. The change in viscosity may pose a number of challenges in designing a mechanical transmission for consistent performance over a typical operating range.
  • a number of transmission manufacturers have added a vent or breather to their transmissions to equalize interior and exterior pressures.
  • a small vent tube which is strategically positioned provides this function.
  • many of the prior art devices allow bridging of the transmission fluid which results in unnecessary fluid expulsion. Bridging occurs when the transmission fluid spans the opening of the vent or breather due to the cohesion tension of a viscous fluid. As the transmission warms up, the pressure increases within the transmission creating bubbles within the tube or breather which forces the fluid to be expelled unnecessarily from the transmission.
  • a transmission breather which provides pressure equalization while reducing or eliminating unnecessary transmission fluid expulsion from the breather during normal operation of the transmission without allowing easy entry of external contaminants into the transmission. It is also desirable to provide a breather which reduces or eliminates fluid escape in the form of vapor. It is also desirable to provide a breather which comprises only a few parts, which can be easily manufactured and which can be easily installed in the transmission with a top-drivable tool, such as a socket wrench or a screwdriver. It is also desirable to provide a breather which is designed to withstand the types of impacts which could occur over the lifetime of the breather and which is corrosion resistant.
  • the present invention discloses vacuum relief valve and/or air breather valve for a mechanically closed environment.
  • the present invention is therefore designed in particular to substitute the vent hose assembly and breather vent and any other existing devices which controls and dynamically regulates the pressure or vacuum of a mechanically enclosed environment.
  • object of the present invention is to introduce vacuum limiting assembly which controls and dynamically adjusts the amount of vacuum of an internal combustion engine.
  • a unit assembly which is a compact engineered product designed to stabilize air-pressure in a mechanically enclosed environment such as a gear box transmission, differential etc.
  • a unit assembly which is threaded for an easy installation over the gear box, differential, transmission assemblies.
  • an unit assembly which does not allows any spillage of lubricant from gearbox/differential chamber etc., in case the automobile rolls and settles as an add angle, thereby ensuring no possible fire hazard (possible, for example, if the leaking lubricant comes in contact with silencer of the vehicle, which due to use of catalysts assume high temperature).
  • a unit assembly which functions as a air lock and arrests water from entering into the enclosure.
  • a plug for the exhaust chamber holds the valve and spring in place which further allows hot air to escape and also allows water to the chamber in case the axle is submerged inside water.
  • a moulded body comprising two circular chambers fitted with exhaust and intake values and two other chambers to accommodate water sucked inside the vent in case the gear box/differential is submerged in water and develop suction pressure.
  • a voluminous cap unit assembly wherein the increased height ensures additional accumulation of water (if Submerged in water) before it enters the chamber.
  • Another object of the present invention is to provide a vent assembly that is easy to construct, easy to install, inexpensive and versatile.
  • Yet still another object of the instant invention is to provide a vent assembly which inhibits contaminants from entering the space of the container.
  • Still a further object of the immediate invention is the provision of inhibiting personal injury with a vent when the liquid carried within the container is toxic.
  • FIG. 1 is the sectional view of the body of the air breather valve assembly in accordance with the present invention
  • FIG. 2 is the sectional view of the body of the air breather valve assembly having different thread size in accordance with the present invention.
  • FIG. 3 ( a ) is the cross sectional view of the cap of the air breather valve assembly in accordance with the present invention
  • FIG. 3 ( b ) is the plan view of the cap of the air breather valve assembly in accordance with the present invention
  • FIG. 4 ( a ) is the cross sectional view of the plug of the air breather valve assembly in accordance with the present invention
  • FIG. 4 ( b ) is the plan view of the plug of the air breather valve assembly in accordance with the present invention
  • FIG. 5 is the plan view of the tray of the air breather valve assembly in accordance with the present invention.
  • FIG. 6 ( a ) is the sectional view of the Rubber seal intake of the air breather valve assembly in accordance with the present invention
  • FIG. 6 ( b ) is the plan view of the Rubber seal intake of the air breather valve assembly in accordance with the present invention
  • FIG. 7 ( a ) is the sectional view of the Rubber seal exhaust of he air breather valve assembly in accordance with the present invention
  • FIG. 7 ( b ) is the plan view of the Rubber seal exhaust of the air breather valve assembly in accordance with the present invention
  • FIG. 8 is the complete cross sectional view of the air breather valve assembly in accordance with the present invention.
  • FIG. 9 is the elevation view of the air breather valve assembly in accordance with the present invention.
  • FIG. 10 is the plan view of the moulded body of the air breather valve assembly in accordance with the present invention.
  • FIG. 11 is the plan view of the machined body of the air breather valve assembly in accordance with the present invention.
  • FIG. 12 is the top plan view of the spring of the air breather valve assembly in accordance with the present invention.
  • FIG. 13 ( a ) is the cross sectional view of the tube for the air filter element of the air breather valve assembly in accordance with the present invention
  • FIG. 13 ( b ) is the top plan view of the tube for the air filter element of the air breather valve assembly in accordance with the present invention
  • FIG. 14 ( a ) is the cross sectional view of the cap for the tube for the air filter element of the air breather valve assembly in accordance with the present invention
  • FIG. 14 ( b ) is the plan view of the cap for the tube for the air filter element of the air breather valve assembly in accordance with the present invention
  • FIG. 1 there is shown a sectional view of an essential component i.e. body ( 11 ) of the air breather valve assembly.
  • the body ( 11 ) holds all the other sub component parts and has male thread ( 12 ), which fits in, the female thread of a receptor housing.
  • the body ( 11 ) further comprises of a plurality of circular chambers ( 13 ), which further contains valve (spring loaded), plug ( 5 ), filter tubes ( 3 ,) containing air filter ( 4 ) passage to the gear, box chamber, for the purposes of particularly exhaust and the air intake/suction respectively.
  • the outer shape of the body ( 11 ) is configured further to hold a cap ( 1 ).
  • the cap ( 1 ) holds onto the body ( 11 ).
  • FIG. 2 illustrates that the threads ( 12 ) and/or the dimensions of the threads can be changed as per need of the recapture/chamber are provided with holes at the bottom for the air intake and exhaust.
  • the top of the body ( 11 ) is covered with a cap ( 1 ) as shown in FIGS. 3( a ) and 3 ( b ).
  • the cap ( 1 ) provides a mechanical protection to small intricate parts fitted in the body and house air filter fiber for oil vapour. Besides this the cap ( 1 ) also functions as air lock and arrests water from entering into the gear box by forming an air lock.
  • the cap ( 1 ) is crimped over the body ( 11 ) after completing the assembly of the sub components over and inside the body.
  • the air breather valve assembly further comprises a plug as shown in FIGS. 4( a ) and 4 ( b ).
  • the body ( 11 ) comprises of two chambers ( 13 ) i.e. an exhaust chamber ( 13 b ) and the other is air intake chamber ( 13 a ).
  • FIG. 4( a ) illustrates the cross section view of the plug ( 5 ).
  • the plug ( 5 ) is placed over the exhaust chamber ( 13 b ) and it holds the valve, tray ( 7 ) and the spring ( 8 ) in place.
  • the opening allows hot air to escape and also allows water to the chamber in case the axle is submerged inside water.
  • the FIG. 4( b ) illustrates the plan view of the plug ( 5 ) to which comprises a slot for screwdriver mend for the tightening of the plug ( 5 ) to secure the tray and spring assembly ( 8 ) inside the chamber ( 13 b ).
  • FIG. 5 illustrates a further sub component i.e. a metallic tray ( 7 ) which is meant to keep the valve in position and ensures uniform pressure on the valve by the spring ( 8 ).
  • FIGS. 6 and 7 describes the rubber seals ( 6 , 10 ) for both the chambers present in the body ( 11 ).
  • the rubber seal ( 10 ) for the exhaust chamber is shown in FIG. 7 , wherein the valve lifts against the spring ( 8 ) for the escape of exhaust air when pressure in the chamber ( 13 b ) is more.
  • the rubber seal ( 6 ) for intake chamber ( 13 a ) is shown in FIG. 6 pushes down against the suction pressure when the chamber ( 13 a ) experience negative pressure.
  • FIG. 8 illustrates the complete cross sectional view of the air breather valve assembly.
  • the cross section shows all the parts used in the fitting and explains the functioning of the product.
  • ⁇ >H When the pressure rises' hot air and/or gases from chamber box adopt the route shown by ⁇ >H.
  • the suction pressure is created due to the cooling off, air finds way into the chamber adopting the route shown by ⁇ >C.
  • Both the valve operates at a very nominal pressure/suction.
  • the gearbox/differential is submerged in water and develop suction pressure.
  • the water enters along periphery of the cap as illustrated in FIG. 9 . Water first enters in the two chambers 14 a and 14 b (illustrated in FIG. 10 , the moulded body and FIG.
  • FIG. 9 illustrates the end plan view of the complete assembly. The passage of air or exhaust will be around the cap's lower edge above the slant of the hex.
  • FIG. 10 illustrates the top plan view of the moulded body ( 11 ).
  • the view of moulded body ( 11 ) shows two circular chambers ( 13 b, 13 a ) for exhaust and intake valves and two other chambers (half moon shaped) ( 14 a, 14 b ) to accommodate water sucked inside the vent in case the gear box differential is submerged in water and develop suction pressure.
  • FIG. 11 shows the plan view of the machined body, which illustrates the four chambers.
  • the larger chambers are meant to house exhaust and intake valves assemblies, while the smaller chambers are meant to accommodate water in case unit is submerged under water and simultaneous suction, pressure is created inside the gear box differential etc.
  • FIG. 12 illustrates the spring ( 8 ) used for the opening and closing of the valves.
  • the spring keeps the valve and the metal tray ( 7 ) in position and allows suction exhaust of air by actuating the valves.
  • FIGS. 13 ( a ) and ( b ) illustrates the tube ( 3 ) for the air filter element ( 4 ).
  • the cross sectional view shows the tube ( 3 ) with a threaded portion to fit over the intake chamber of the body.
  • the tube base forms seat for the delicate valve against which spring ( 8 ) keeps the valve and the tray ( 7 ) in position. It contains air filter elements ( 4 ) which ensures intake of only clean air inside the chamber ( 13 a ).
  • the height of the tube ensures more accumulation of water (if submerged in water) before it enters the chamber.
  • the plan view ( FIG. 13 b ) shows a slot at the bottom of the tube ( 3 ) for the screwdriver meant for tightening purposes.
  • the tube ( 3 ) for the air filter element ( 4 ) is further covered with a cap ( 15 ) having a central hole and illustrated in FIGS. 14 ( a ) and 14 ( b ) in their cross section and the plain view.
  • the cap ( 15 ) keeps the air filter element ( 4 ) in place and the opening allows the intake the atmospheric air inside the chamber.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
US13/059,028 2008-08-14 2008-09-29 Air Breather Valve Assembly Abandoned US20120003915A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IN1934/DEL/2008 2008-08-14
IN1934DE2008 2008-08-14
PCT/IN2008/000629 WO2010018588A1 (fr) 2008-08-14 2008-09-29 Ensemble soupape de respirateur d'air

Publications (1)

Publication Number Publication Date
US20120003915A1 true US20120003915A1 (en) 2012-01-05

Family

ID=40456901

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/059,028 Abandoned US20120003915A1 (en) 2008-08-14 2008-09-29 Air Breather Valve Assembly

Country Status (6)

Country Link
US (1) US20120003915A1 (fr)
EP (1) EP2324273A1 (fr)
JP (1) JP2011530677A (fr)
KR (1) KR20110069004A (fr)
CN (1) CN102187134A (fr)
WO (1) WO2010018588A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130047780A1 (en) * 2011-08-31 2013-02-28 American Axle & Manufacturing, Inc. Porous vent breather
WO2014043595A1 (fr) * 2012-09-14 2014-03-20 Ingersoll-Rand Company Reniflard
CN115451315A (zh) * 2022-09-13 2022-12-09 杭州国能汽轮工程有限公司 一种注油调压装置及用于油箱的排烟调压系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235326B (zh) * 2013-10-30 2019-02-05 莱州市盛乐机械有限公司 一种用于油箱、减速机的多功能透气塞
WO2015183489A1 (fr) 2014-05-30 2015-12-03 Endologix, Inc. Systèmes et procédés de greffe d'endoprothèse modulaire comprenant des structures de remplissage gonflables
DE102016202965B3 (de) * 2016-02-25 2017-08-31 Audi Ag Druckausgleichsvorrichtung für ein Gehäuse, insbesondere eines Kraftfahrzeugs, sowie Komponente für ein Kraftfahrzeug
DE102016226098A1 (de) * 2016-12-22 2018-06-28 Continental Automotive Gmbh Ventil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074538A1 (en) * 2002-10-15 2004-04-22 Ortenzi Vernon D. Pressure management apparatus and methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147096A (en) * 1977-06-01 1979-04-03 Dresser Industries, Inc. Breather vent for vapor vent valve
US7249595B2 (en) * 2005-03-16 2007-07-31 Eaton Corporation Vapor vent valve with pressure relief function integrated to carbon canister

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074538A1 (en) * 2002-10-15 2004-04-22 Ortenzi Vernon D. Pressure management apparatus and methods

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130047780A1 (en) * 2011-08-31 2013-02-28 American Axle & Manufacturing, Inc. Porous vent breather
US8529657B2 (en) * 2011-08-31 2013-09-10 American Axle & Manufacturing, Inc. Porous vent breather
WO2014043595A1 (fr) * 2012-09-14 2014-03-20 Ingersoll-Rand Company Reniflard
US9650926B2 (en) 2012-09-14 2017-05-16 Ingersoll-Rand Company Breather device
CN115451315A (zh) * 2022-09-13 2022-12-09 杭州国能汽轮工程有限公司 一种注油调压装置及用于油箱的排烟调压系统

Also Published As

Publication number Publication date
CN102187134A (zh) 2011-09-14
JP2011530677A (ja) 2011-12-22
EP2324273A1 (fr) 2011-05-25
KR20110069004A (ko) 2011-06-22
WO2010018588A1 (fr) 2010-02-18

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