| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123573000 | Vapor treated before mixing with combustible mixture (e.g., cooling) | 87 |
| 20080210206 | Breather apparatus in combustion engine - The present invention provides a breather apparatus in a combustion engine having a sufficient gas-liquid separation function without involving an additional parts such as a breather tank and an arrangement space thereof. A breather chamber is formed in an air cleaner case, and the breather chamber is communicated with a crank case through a breather pipe. Preferably another breather chamber is formed in the crank case in addition to the breather chamber in the air cleaner case, and the breather pipe is connected to a breather outlet of the breather chamber in the crank case. The breather chamber in the air cleaner case is provided in a clean side space on an intake-air downstream side of a filter element. | 09-04-2008 |
| 20080257320 | Blowby gas returning device - A blowby gas returning device is arranged to allow blowby gas leaking from a combustion chamber of an engine to flow in an intake passage through a returning passage and return to the combustion chamber, and arranged to regulate a flow rate of the blowby gas by a PCV valve provided in the returning passage. This blowby gas returning device comprises an outside-air passage for mixing outside air into the blowby gas before being introduced into the PCV valve; and an open-close valve for opening and closing the outside-air passage. An electronic control unit controls the open-close valve to open when the operating state detected by sensors is an idle state. | 10-23-2008 |
| 20090050121 | Two Stage Drainage Gas-Liquid Separator - A two stage drainage gas-liquid separator assembly includes an inertial gas-liquid impactor separator having one or more nozzles accelerating a gas-liquid stream therethrough, and an inertial impactor in the path of the accelerated gas-liquid stream and causing liquid particle separation from the gas-liquid stream, and further includes a coalescer filter downstream of the inertial gas-liquid impactor separator and effecting further liquid particle separation, and coalescing separated liquid particles. | 02-26-2009 |
| 20090126708 | CRANK-CASE VENTILATION FILTER SET EQUIPPED WITH CHECK VALVE - A crank-case ventilation filter set. A crankcase ventilation filter filters oil from blow-by gas. An inlet pipe transports the blow-by gas from an engine to the filter. An outlet pipe transports the blow-by gas from the filter to an intake device. An oil return pipe transports oil, such as by gravity, from the filter to an oil pan provided at a lower portion of the engine. A valve for preventing back-flow of oil is provided in the oil return pipe. The valve is disposed in the oil pan above an oil top limit line of the oil pan. | 05-21-2009 |
| 20090139503 | CLOSED CRANKCASE VENTILATION APPARATUS - A CCV apparatus that exhausts blow-by gas from a crankcase effectively and thereby prevents pressure in a crankcase from excessively increasing may include: a lower case, a middle case comprising a body, an upper plate and a cup wherein the upper plate is provided with a blow-by gas passageway coupled with a filter in the cup for flowing blow-by gas into the body therethrough and at least a gas hole formed in the upper plate outside the cup for flowing the filtered blow-by gas in the body to the exterior of the cup, and an upper case enclosing an opening at an upper end of the cup. The apparatus further comprises a by-pass passageway selectively detouring the blow-by gas from the inlet pipe according to a pressure of the blow-by gas in the inlet pipe wherein the by-pass passageway is mounted at the exterior of the cases. | 06-04-2009 |
| 20090183717 | CRANKCASE VENTING SYSTEM - Crankcase venting system comprising an oil separator arranged in a housing that separates the housing into an unfiltered air side and a filtered air side, wherein in the area of the unfiltered air side a valve is arranged that is comprised of a valve plate, a pressure spring resting against the valve plate, as well as a valve seat that is closed or opened by means of the valve plate, and wherein the valve is closed off by a lid that is locked or snapped in place. | 07-23-2009 |
| 20090199826 | DEVICE FOR ELIMINATING OIL PARTICLES FROM THE CRANKCASE VENTILATION GAS IN AN INTERNAL COMBUSTION ENGINE - A device for eliminating oil particles from the crankcase ventilation gas of an internal combustion engine. The device is located in the flow duct of the gas that runs from the crankcase to an induction tract of the engine. The device includes an oil separator in the form of an outlet for the gas with a deflection of the flow, causing the oil particles to be deposited on a baffle surface and thus to be eliminated from the crankcase ventilation gas flow. The device has an infeed cross-section, which lies upstream of the baffle surface when viewed from the flow direction of the crankcase ventilation gas, and which is sub-divided into several infeed sub-sections. The baffle surface is a solid surface that is devoid of perforations. The baffle surface is configured on a valve body, which lies downstream of the infeed sub-sections when viewed in the flow direction of the gas, and which is pre-tensioned by a force. The valve body can be displaced in the opening direction in opposition to the pre-tension, as a result of the differential pressure in the gas between the crankcase and the induction tract. | 08-13-2009 |
| 20090205619 | BLOW-BY GAS RECIRCULATION STRUCTURE FOR ENGINE - A blow-by gas recirculation structure for an engine includes a gas-liquid separating member, a cylinder head, a support member and a mounting bolt. The gas-liquid separating member includes a gas-liquid separating passage to separate oil from the blow-by gas. The cylinder head includes a communication passage communicating with the air intake system. The support member is configured and arranged to rotatably support a camshaft in the cylinder head. The mounting bolt securely fastens the support member to the cylinder head with the mounting bolt threadedly engaging within the communication passage of the cylinder head. The mounting bolt has an axial through hole axially extending there-through and communicating with the gas-liquid separating passage so that the blow-by gas that has passed through the gas-liquid separating passage is recirculated from the axial through hole of the mounting bolt, through the communication passage, and into the air intake system. | 08-20-2009 |
| 20090223496 | DEVICE FOR CLEANING OF CRANKCASE GASES - This document describes a device for cleaning of crankcase gases from a combustion engine, and a combustion engine having such a device. An inlet conduit is connected to a crankcase of the combustion engine. A centrifugal separator receives a flow of crankcase gases from the crankcase via the inlet conduit and comprises a routable centrifuge rotor for centrifuging the crankcase gases. A drive device drives the centrifuge rotor. An outlet conduit discharges cleaned crankcase gases from the centrifugal separator. The rotary speed of the drive device, and thus the rotary speed of the centrifuge rotor, is controllable depending on the gas pressure in the crankcase. An export conduit may be connected to the inlet conduit and adapted to enable discharge of a flow of crankcase gases from the crankcase by-passing the centrifugal separator depending on the gas pressure in the crankcase. An import conduit may be connected to the inlet conduit and adapted to enable feeding of a flow of air from the surroundings to the crankcase depending on the gas pressure in the crankcase. | 09-10-2009 |
| 20090241920 | DEVICE FOR CLEANING CRANK CASE GASES - Device for cleaning crankcase gases from an internal combustion engine by means of a centrifugal separator ( | 10-01-2009 |
| 20090241921 | Oil Collecting Structure of Blow-By Gas Recirculation System and Oil Collecting Device Having the Structure - An oil return passage that is open at its upper end to a cam chamber and is open at its lower end to a crank chamber is formed to extend from a cylinder head to a cylinder block. A heat exchanger having a double-pipe structure is housed in the oil return passage. Lubricating oil fed from the cam chamber is passed through an oil-collection outer passage of the heat exchanger, and separated oil fed from a separator case of a PCV system is passed through an oil-collection inner passage of the heat exchanger, so that heat of the lubricating oil is imparted to the separated oil. Thus, water contained in the separated oil is evaporated, and the amount of water flowing into an oil pan can be reduced. | 10-01-2009 |
| 20090241922 | APPARATUS AND METHOD FOR TREATING BLOW-BY GAS FOR INTERNAL COMBUSTION ENGINE - A total amount of engine oil carried from a crankcase into an intake passage by blow-by gas from the start of the use of the internal combustion engine or the engine oil is calculated. It is determined whether the total oil carried amount is greater or less than an optimum value every predetermined operation period of the internal combustion engine. Then, when it is determined that the total oil carried amount is greater than the optimum value, the gas flow rate of the blow-by gas controlled based on the engine operation state is reduced until next determination process is performed. When it is determined that the total oil carried amount is less than the optimum value, the gas flow rate is increased until next determination process is performed. | 10-01-2009 |
| 20090250044 | CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a cylinder head ( | 10-08-2009 |
| 20090266346 | CRANKCASE FILTRATION ASSEMBLY WITH ADDITIVE FOR TREATING CONDENSATE MATERIAL - A separation assembly is generally described that can chemically treat condensate material in a fluid stream. One particular example of a separation assembly is a crankcase filtration assembly used in engine oil filtration and that includes an additive material disposed within the crankcase filtration assembly. The additive material chemically treats condensate material of blow-by fluids received by the crankcase filtration assembly when a condition is present in the condensate material. For example, the crankcase filtration assembly provides a unique structure with a chemically treated component that can reduce an acidic condition in condensate material received by the crankcase filtration assembly, and even more generally may extend engine oil life. | 10-29-2009 |
| 20090293852 | Emission Control System with Vacuum Boost - The present disclosure relates to a closed crankcase emission control system that includes an engine. The closed crankcase emission control system also includes a turbo disposed upstream from the engine that is in fluid communication with the engine. The closed crankcase emission control system further includes an air filter disposed upstream from the turbo that is in fluid communication with the turbo. Additionally, the closed crankcase emission control system includes a blow-by filter arrangement disposed downstream of the engine and upstream from the turbo. The blow-by filter arrangement is adapted for filtering blow-by gases from the engine. Furthermore, the closed crankcase emission control system has a diameter restriction disposed between the turbo and the air filter that is in fluid communication with the air filter, the turbo, and the blow-by filter. The turbo draws air from the air filter and a filtered gaseous stream from the blow-by filter arrangement through the diameter restriction. | 12-03-2009 |
| 20090308365 | Breather Assembly with Standpipe for an Internal Combustion Engine - Disclosed herein is a breather assembly for use in an internal combustion engine and a method of operating an internal combustion engine. In at least one embodiment, the breather assembly includes an input chamber for receiving blow-by gas, the input chamber bounded at least partially by a crankcase exterior, and a standpipe situated inside the input chamber for directing blow-by gas into the input chamber. Additionally, the breather assembly can include an input drainback passage situated inside the input chamber and an output chamber situated adjacent the input chamber, the chamber having an inner wall with a one-way valve that allows blow-by gas to flow from the input chamber to the output chamber. The breather assembly can also include an output drainback aperture situated in the inner wall and an output chamber housing that substantially encloses the output chamber and includes an exhaust port for exhausting blow-by gas. | 12-17-2009 |
| 20100006075 | DEVICE FOR VENTILATING A CRANK SPACE - The present invention relates to a device for venting a crank space in an internal combustion engine ( | 01-14-2010 |
| 20100031940 | Aerosol Separator; Components; and, Methods - Arrangements for use in crankcase ventilation are described and shown. Included are serviceable crankcase ventilation filter cartridges which include a media pack axial drain arrangement, for preferred, efficient, operation. A crankcase ventilation filter arrangements including a housing and such a serviceable cartridge is shown. Also shown and described are methods of assembly, operation and use. | 02-11-2010 |
| 20100043763 | DEVICE FOR SEPARATING FLUID PARTICLES FROM A GAS FLOW LEAKING FROM A CRANKCASE - The invention concerns a device for separating fluid particles from a gas flow, in particular from a crankcase gas flow of an internal combustion engine. A valve is provided to allow a distribution of the gas flow to at least two cyclones depending on the volumetric flow. The valve consists of a cylinder through which the gas can flow. Inside the cylinder is a piston. This piston is designed inside the cylinder with a clearance fit or provided with one or several boreholes. In case of a low gas flow and because of the tolerances or boreholes, this gas flow will be directed around the cylinder to a first cyclone. When exceeding a certain volumetric flow the piston moves inside the cylinder and opens at least one more cyclone for the gas flow to flow through. | 02-25-2010 |
| 20100071676 | RESONATOR AND CRANKCASE VENTILATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - The present invention provides a crankcase ventilation system and resonator for a turbocharged internal combustion engine assembly. The resonator, designed for intake noise reduction, is mounted to the engine. An oil separation unit, designed for passage of blowby gases, is mounted to a cam cover, sandwiched between the resonator and cam cover. The resonator has a resonator body defining a resonator volume therein. The resonator fluidly communicates the oil separation unit with the turbocharger air inlet pipe, whereby blowby gases are evacuated from the cam cover and delivered through the resonator volume for reintroduction to the engine's air intake system. Integration of the blowby passages into the resonator reduces the number of potential leak paths in the air induction system, and reduces overall engine mass, cost, and packaging size. The present design also offers improved On-board Diagnostics (OBD) by allowing only large flow areas to be disconnected. | 03-25-2010 |
| 20100089372 | SLEEVE HYDROCARBON TRAP - A sleeve hydrocarbon trap is provided. In some examples, the sleeve hydrocarbon trap includes a hydrocarbon adsorbing sleeve, the sleeve adapted to be positioned in a sensor bore and the sleeve including one or more hydrocarbon adsorbing layers, and a cage adapted to retain the hydrocarbon adsorbing sleeve in the sensor bore. | 04-15-2010 |
| 20100101546 | CRANKCASE VAPOR PURIFICATION DEVICE - A vapor purifier for oil recovery from and cleansing of deleterious matter carried by oil vapors in a crankcase of an internal combustion-type engine generally includes a coil member that can separate the oil from the vapors by passing the vapors over and/or through the coil member. As the vapors impinge upon the surface(s) of the coil member, oil in the blow-by vapors condenses thereon. The vapor purifier can include a flow equalization member to maintain a normal engine intake manifold pressure for driving modes of the engine. As a result, the vapor purifier of the present invention can maintain the air to fuel stoichiometric ratio of the engine system. Additional components, such as filters and/or disks can also be included in the vapor purifier to promote oil recovery and cleansing of deleterious matter from the vapors, which act as a host for the deleterious matter. | 04-29-2010 |
| 20100122694 | Oil Separation Apparatus For Blow-By Gas - An oil separation apparatus may include an intake housing provided with a gas inlet for the blow-by gas to be sucked therein, a plurality of cyclone which is formed as a cone, is disposed around the intake housing, is communicated with intake housing through an intake passage and separates oil from the blow-by gas, wherein a gas exit is formed to the upper side of the cyclone for discharging the blow-by gas and an oil outlet is formed to the lower side of the cyclone for discharging the separated oil, an exhaust housing cylinder which is provided with an gas outlet, is communicated with the gas exit and discharges the blow-by gas through the gas outlet and a control unit which is disposed within the intake and exhaust housing and selectively opens the intake passages according to intake pressure of the engine. | 05-20-2010 |
| 20100126479 | OIL SEPARATOR - An oil separating device for separating micron and sub-micron particles of oil from crankcase gases is provided. The oil separating device includes a housing having a first chamber in communication with a second chamber, and a narrow wave-shaped passage disposed between the first chamber and the second chamber. The narrow wave-shaped passage is defined by a first inner wall having a first undulating surface opposite and spaced apart from a second inner wall having a second undulating surface mirroring the first undulating surface. The narrow wave-shaped passage is disposed downstream of the first chamber and above the oil drain so as to allow oil particles in crankcase gases passing from the inlet to the outlet to accumulate on the first and second inner walls and assist gravity in forcing the accumulated oil through the narrow wave-shaped passage into the oil drain. | 05-27-2010 |
| 20100126480 | OIL CAPTURING DEVICE HAVING A ROTARY COMPONENT - An oil capturing device for capturing oil from crankcase gases. The oil capturing device includes a housing containing a central chamber and a rotor disposed in the central chamber. The rotor includes a shaft rotatable about an axis and a flange extending from the shaft towards the inner wall of the central chamber. The flange is in contact with the inner wall, and spirals along the shaft so as to define a gas passage interconnecting the inlet to the first port. The gas passage provides a passage for crankcase gases to flow from the inlet to the first port, and narrows as it proceeds from the inlet to the port so as to compress crankcase gases travelling from the inlet to the first port. The rotor may be operable by a motor, pulley connected to the engine, or a turbine driven by the engine's exhaust. | 05-27-2010 |
| 20100139633 | Device for Separating Particles from a Gas Stream - The invention concerns a separating device for separating particles ( | 06-10-2010 |
| 20100170484 | INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE FOR A PLURALITY OF CYLINDERS - An internal combustion engine has a crankcase for a plurality of cylinders, which has hollow vertical reinforcements in the area of the side walls of the crankcase in the area of the main bearing planes, at least a part of the vertical reinforcements being implemented as oil recirculation passages between cylinder head and crankcase. At least one vertical reinforcement which conducts blow-by gas has a connection for a blow-by gas line leading to an oil separator. | 07-08-2010 |
| 20100180872 | POLLUTION CONTROL SYSTEM - The pollution control system includes a PCV valve having an inlet and an outlet adapted to vent blow-by gas out from a combustion engine. A fluid regulator associated with the PCV valve selectively modulates engine vacuum pressure to adjustably increase or decrease a fluid flow rate of blow-by gas venting from the combustion engine. An integral oil trap fluidly coupled to the PCV valve condenses vaporized oil in the blow-by gas into a liquid for re-use in the combustion engine. | 07-22-2010 |
| 20100252008 | Closed crankcase ventilation system - A closed crankcase ventilation system in which blow-by gas is introduced into an oil separator through a blow-by gas blowout opening provided in a truss structure of a cylinder block. A diaphragm is established in the truss structure of the cylinder block to close a portion of an oil hole portion returned from a cylinder head on the top thereof, thus preventing oil from flowing backward. An oil drain portion returns oil separated in the oil separator to an oil pan, and a gas recycling portion supplies blow-by gas separated in the oil separator to an intake manifold. | 10-07-2010 |
| 20100307466 | OIL MIST SEPARATOR - A crankcase ventilation oil mist separator system, comprising: a first separator unit, which has at least one filter body arranged in a blow-by gas path such that blow-by gas flows through the body; a second separator unit which is arranged in a bypass path that bypasses the first separator unit; and a bypass valve which opens the bypass path when a differential pressure in the first separator unit exceeds a predefined value, wherein the second separator unit is an impactor separator. | 12-09-2010 |
| 20100313860 | APPARATUS FOR REMOVAL OF OIL FROM POSITIVE CRANKCASE VENTILATION SYSTEM - A gasket for an internal combustion engine comprises a sheet portion and a PCV impaction surface formed in the sheet portion. The PCV impaction surface is configured to extend across, and partially close, a crankcase ventilation system passage. A plurality of apertures extend through the PCV impaction surface and are configured to allow crankcase gas to flow freely in the crankcase ventilation system passage while the PCV impaction surface is configured to separate oil droplets from the crankcase gas by impaction of the droplets with the surface. | 12-16-2010 |
| 20100313861 | IMPROVED-EFFICIENCY DEVICE FOR RECOVERING THE OIL CONTAINED IN COMBUSTION GAS - A device for recovering the oil contained in the combustion gas leaving the engine, includes at least one orifice ( | 12-16-2010 |
| 20100319665 | Fuel-air separation structure improvement for engine blow-by of vehicles - This invention is to provide a fuel-air separation structure improvement for engine blow-by, which features an extra oil recirculation tube set up in between the bottom of the fuel-air separator and the engine, where the flow connection of the oil recirculation tube is controlled by a check valve, and the direction of the check valve is enabled only in a unidirectional way, pointing from the fuel-air separator to the crankcase of the engine, whereas the reverse direction is being cut off. By means of the aforementioned structure, the problems of carbon deposits in engine and exhaust pollution due to an excess of oil along with blow-by in the fuel-air separator can thus be substantially improved. | 12-23-2010 |
| 20100326409 | CRANK CASE VENTILATION - A crank case ventilation system for ventilation of blow by gases from an internal combustion engine includes a crank case ventilation pipe connectable with a first end to the internal combustion engine for receiving blow by gases from the internal combustion engine and with a second end to an air inlet pipe provided upstream of a turbo and/or a super charger, where the second end of the crank case ventilation pipe is provided for delivering blow by gases to the air inlet. At least a part of at least one heat pipe is provided inside the crank case ventilation pipe, where the at least one heat pipe is provided for transporting compressed air to an inlet downstream the turbo and/or the super charger. | 12-30-2010 |
| 20110011380 | METHOD FOR FUNCTIONAL DIAGNOSIS OF A SEPARATOR - A method for functional diagnosis of a separator for separating oil present in a blow-by has from a crankcase in a combustion engine is provided. The crankcase includes a crankcase pressure sensor, and is in fluid communication with the separator. The method includes the steps of detecting a first output signal of the crankcase pressure sensor at a first operational point or interval, and comparing the first output signal of the crankcase pressure sensor with at least one reference value or signal, wherein the comparison between said first output signal of the crankcase pressure sensor and the at least one reference value or signal provides the functional diagnosis of the separator. A method can perform a functional diagnosis without the use of additional sensors or complex algorithms and as a consequence manufacturing costs can be held at a minimum. | 01-20-2011 |
| 20110023849 | Turbocharger with Integrated Centrifugal Breather - A breather system for a crankcase of an internal combustion engine, includes a centrifuge driven by the engine turbocharger. The turbocharger has a turbine and a compressor, the compressor driven by the turbine. The centrifuge is driven by the turbine on a common shaft with the compressor and includes a centrifuge inlet, a gas outlet and an oil outlet. Crankcase gas is delivered to the centrifuge and oil is removed by the centrifuge and collected within the turbocharger housing and substantially oil free gas is passed through the centrifuge, through an axially passage in the shaft and into an inlet of the compressor. | 02-03-2011 |
| 20110023850 | VARIABLE OPEN-CLOSED CRANKCASE BREATHER SYSTEM FOR BLOW-BY GAS - A method of selectively directing a flow of blow-by gas (F) in a vehicle having an engine ( | 02-03-2011 |
| 20110023851 | METHOD AND APPARATUS FOR REDUCING BLOW-BY COKING - A method of coking entrained oil from blow-by gas (F) of an engine ( | 02-03-2011 |
| 20110048391 | Breather Air - Oil Seperator - A breather system for a crankcase of an internal combustion engine includes a gas compressor configured to elevate the pressure of crankcase blow-by gas. At least one gas-oil separator receives gas with entrained oil from the compressor, separates oil from the gas and discharges cleaned gas. The oil is re-circulated back to the crankcase. The cleaned gas is either discharged through the engine exhaust system or re-circulated back into the engine combustion air intake. A bypass conduit allows cleaned gas to be re-circulated from the gas-oil separator outlet to the compressor inlet to balance the blow-by production with the capacity of the compressor. | 03-03-2011 |
| 20110061635 | Crankcase Ventilation Device for Internal Combustion Engines - A conduit filter for an internal combustion engine, such as a diesel engine, comprises: a tubular conduit configured to enclose a stream of crankcase ventilation from the engine; and one or more vanes attached to an interior conduit surface of the tubular conduit, the one or more vanes protruding into the stream of crankcase ventilation to stimulate turbulence in the stream of crankcase ventilation so as to facilitate the deposition of oil from the stream of crankcase ventilation onto the interior conduit surface and onto surfaces of the one or more vanes. | 03-17-2011 |
| 20110083650 | METHOD AND APPARATUS TO REMOVE A FLUIDIC CONTAMINANT FROM LUBRICATING OIL - A device for removing a fluidic contaminant from lubricating oil in an internal combustion engine includes a fluid absorbing element comprising a mounting element and a fluid absorption media assembled into a sump of a crankcase of the internal combustion engine. The fluid absorbing element is immersed within the oil contained in the sump when the engine is not operating. The fluid absorption media is configured to absorb a fluidic contaminant in the engine oil when the engine is not operating and to desorb the absorbed fluidic contaminant. | 04-14-2011 |
| 20110083651 | METHOD AND APPARATUS TO REMOVE A FLUIDIC CONTAMINANT FROM LUBRICATING OIL - A device for removing a fluidic contaminant from engine oil in an internal combustion engine includes a fluid absorbing element having a mounting element and a fluid absorption media assembled into a sump of a crankcase of the internal combustion engine. A first portion of the fluid absorption media is immersed within the engine oil contained in the sump when the engine is not operating and a second portion of the fluid absorption media is exposed to ambient air contained in a head space of the crankcase. The fluid absorption media is configured to absorb a fluidic contaminant in the engine oil during a period when the engine is not operating and to desorb the absorbed fluidic contaminant. | 04-14-2011 |
| 20110108014 | Separator for Crank Housing Ventilation of an Internal Combustion Engine - The invention relates to a separator for crank housing ventilation of an internal combustion engine. The separator comprises at least one vortex chamber ( | 05-12-2011 |
| 20110120433 | CRANKCASE BLOW-BY GAS TREATMENT ASSEMBLY AND METHOD OF TREATING BLOW-BY GAS - A blow-by treatment assembly ( | 05-26-2011 |
| 20110146638 | BLOW-BY GAS RECIRCULATION SYSTEM - A vehicle includes an engine mounted in an engine room with a crankshaft oriented in a width direction of the vehicle, a turbo-supercharger, an exhaust manifold, an air cleaner placed on a lateral side of the turbo-supercharger, an air intake hose connecting the turbo-supercharger and the air cleaner, and a blow-by gas recirculation system provided for the engine. The blow-by gas recirculation system includes a blow-by gas outlet provided in the engine, a blow-by gas inlet provided in the air intake hose, a blow-by gas recirculation pipe connecting the blow-by gas outlet and the blow-by gas inlet to each other. The blow-by gas recirculation pipe is provided with a heat receiver adapted to receive heat from the exhaust manifold disposed close to an end portion of the exhaust manifold, and the heat receiver and a passageway extending from the heat receiver to the blow-by gas inlet are arranged behind the air intake hose in a front-rear direction of the vehicle in a side view thereof. | 06-23-2011 |
| 20110146639 | OIL SEPARATOR FOR INTERNAL COMBUSTION ENGINE - The invention relates to an oil separator ( | 06-23-2011 |
| 20110174280 | OIL SEPARATING DEVICE - An oil separating device is provided for crankcase gases of a combustion engine with a separating element. The separating element is at least partially arranged on a cylinder head of the combustion engine. | 07-21-2011 |
| 20110180051 | Crankcase Ventilation Inside-Out Flow Rotating Coalescer - An internal combustion engine crankcase ventilation rotating coalescer includes an annular rotating coalescing filter element, an inlet port supplying blowby gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering cleaned separated air from the exterior of the rotating element. The direction of blowby gas is inside-out, radially outwardly from the hollow interior to the exterior. | 07-28-2011 |
| 20110180052 | Closed Crankcase Ventilation System - A closed crankcase ventilation system for an internal combustion engine includes a return duct with a variably controlled air-oil coalescer. In a turbocharger version, cleaned separated air is provided to the turbocharger inlet, and the coalescer is variably controlled according to a given condition of the turbocharger and/or the engine and/or the coalescer. | 07-28-2011 |
| 20110290225 | SEPARATOR DEVICE FOR A SYSTEM FOR RECIRCULATION OF THE BLOW-BY GASES OF AN INTERNAL COMBUSTION ENGINE - A separator device for a system for recirculation of the blow-by gases of an internal combustion engine includes a casing containing a separation chamber and having an inlet for communication with the engine crankcase and an outlet for communication with the engine intake manifold, and drainage outlets ending in the engine crankcase, for returning the liquid separated in the separation chamber into the engine crankcase. Actuator means sensitive to pressure in the engine crankcase are associated to the inlet and to the drainage outlets so that when the pressure in the engine crankcase is higher than the pressure in the separator device, the inlet is open and the drainage outlets are closed, while when the pressure in the engine crankcase is lower than the pressure in the separator device, the inlet is closed and the drainage outlets are open. | 12-01-2011 |
| 20120080015 | BREATHER APPARATUS FOR ENGINE - This breather apparatus has a rotation separator that is fastened to a camshaft, and that rotation separator has a base plate section and a plurality of protruding plates that extend from the base plate section. Moreover, a separator housing is provided in the cylinder head, and comprises an air intake on one end, and an exhaust outlet on the other end. Furthermore, a reed valve that opens and closes by the change in pressure inside a cam chamber is provided in the air intake. Blowby gas that is guided to the cam chamber hits against the protruding plates when passing in the radial direction of the rotation separator, and oil mist is captured by those protruding plates. Continuing, the blowby gas is guided from the cam chamber into the separator housing via the reed valve. When passing through the reed valve, the flow rate of the blowby gas changes, so oil mist is effectively captured by the inner wall surface of the separator housing. | 04-05-2012 |
| 20120186566 | Engine Air Management System - An engine air management system is provided for an internal combustion engine generating blowby gas in a crankcase containing engine oil and oil aerosol. The system includes combinations of two or more of an air-oil separator, an air filter, and an acoustic silencer. | 07-26-2012 |
| 20120204846 | AIR FILTER ASSEMBLY FOR AN ENGINE - An engine includes a breather conduit, an intake conduit, and an air filter assembly. The air filter assembly includes a case and a filter element. The case includes a first opening for receiving the breather conduit, and a second opening for receiving the intake conduit. The filter element includes a first aperture, a second aperture, and filter media at least partially defining an interior chamber of the filter element. The first and second apertures of the filter element are at least partially aligned with the first and second openings of the case, respectively. The filter element is positioned in the case such that the breather conduit and the intake conduit are directed to or from the interior chamber of the filter element, such that air filtered by the filter media mixes with unfiltered gases from the breather conduit in the interior chamber of the filter element prior to entering the intake conduit. | 08-16-2012 |
| 20120304971 | ENGINE INCLUDING CRANKCASE VENTILATION SYSTEM OIL DRAIN FEATURES - An engine assembly includes an engine structure, an air intake assembly and a positive crankcase ventilation system. The engine structure defines an intake port and a crankcase. Furthermore, the air intake assembly is in communication with the intake port. The positive crankcase ventilation system includes a fresh air line, a housing and a foul air line. The fresh air line is in communication with the air intake assembly and the crankcase. The housing defines an air inlet and an air outlet with the air inlet being in communication with the crankcase and partially defined by a wall extending into an inner volume of the housing. An oil separation mechanism may be located in the housing between the air inlet and the air outlet. The foul air line is in communication with the air intake assembly and the air outlet. | 12-06-2012 |
| 20130008420 | AIR-OIL SEPARATOR FOR EXTRACTING OIL FROM ENGINE BLOWBY GAS - An engine assembly includes an engine and an intake assembly. The engine defines a combustion chamber and a crankcase, and the intake assembly includes an intake manifold in fluid communication with the combustion chamber. An air-oil separator is provided with the engine and defines a separator volume, an inlet and an outlet, where each of the inlet and outlet are in fluid communication with the separator volume. The inlet of the air-oil separator is provided in fluid communication with the crankcase, and the outlet of the air-oil separator is provided in fluid communication with the intake manifold. The air-oil separator further includes an interior surface that abuts and surrounds the separator volume, and the interior surface has a surface roughness (R | 01-10-2013 |
| 20130042844 | ENGINE ASSEMBLY INCLUDING POSITIVE CRANKCASE VENTILATION WITH OIL SURGE PROTECTION - An engine assembly includes an engine structure, an intake air assembly and a crankcase ventilation line assembly. The engine structure defines a cylinder bore, an intake port in communication with the cylinder bore, and a crankcase. The air intake assembly is in communication with the intake port. The crankcase ventilation line assembly includes a fresh air line and an oil surge protection device. The fresh air line is in communication with the crankcase and the air intake assembly and provides fresh air to the crankcase. The oil surge protection device is in communication with the fresh air line and defines an oil obstruction inhibiting oil flow to the air intake assembly while allowing air flow between the crankcase and the air intake assembly. | 02-21-2013 |
| 20130098342 | INTRODUCTION OF VENTILATION GASES VIA INDIVIDUAL PASSAGES TO THE INTAKE PORTS - An internal combustion engine includes a plurality of PCV ports formed internally within the engine block and the cylinder head. The PCV ports directly connect a crankcase chamber with each of a plurality of intake ports defined by the cylinder head. The blow-by gases that accumulate within the crankcase chamber are directly vented through the internal PCV ports into the intake ports. | 04-25-2013 |
| 20130104860 | Engine Air Management System | 05-02-2013 |
| 20130112179 | POSITIVE CRANKCASE VENTILATION SYSTEM - An engine assembly includes an engine defining a combustion chamber and a crankcase volume, and an intake assembly having an air cleaner assembly, a throttle, and an intake manifold in a series arrangement and fluidly coupled with the combustion chamber. A first and second air-oil separator may define respective first and second separator volumes, each respectively configured to extract oil from air flowing through the volume. A first conduit may fluidly couple the crankcase with the first separator volume, a second conduit may fluidly couple the intake manifold with the first separator volume; a third conduit may fluidly couple the crankcase with the second separator volume; a fourth conduit may fluidly couple the air cleaner assembly with the second separator volume; and a fifth conduit may fluidly couple the air cleaner assembly with the first separator volume. | 05-09-2013 |
| 20130125865 | OIL SEPARATOR FOR INTERNAL COMBUSTION ENGINE - An oil separator disposed inside a cylinder head cover of an internal combustion engine. The oil separator includes a body section defining an elongate separator chamber and having a blowby gas inlet and a blowby gas outlet. A partition wall is disposed to divide the separator chamber into an inlet chamber at side of the blowby gas inlet and an outlet chamber at side of the blowby gas outlet. The partition wall is formed with a plurality of passage holes each of which is triangular in cross-section. A collision plate is disposed inside the outlet chamber and located opposite to the passage holes of the partition wall. A slit-like opening is defined by a lower section of the collision plate and communicated with a drain section for discharging oil separated from blowby gas into a valve operating chamber. | 05-23-2013 |
| 20130139796 | FOUR-STROKE ENGINE - A four-stroke engine for a working machine with a rod is provided, where a tool is attached to one end of the rod in a longitudinal direction and the four-stroke engine is fixed to the other end of the rod in use. The four-stroke engine includes: an oil circulation pathway; and a gas-liquid separating chamber configured to separate oil from blowby gas. The gas-liquid separating chamber includes: an inflow part into which the blowby gas is introduced from the oil circulation pathway; oil discharge parts configured to flow the oil separated from the blowby gas back to the oil circulation pathway; and a blowby gas discharge part configured to discharge the blowby gas not containing oil mist from the gas-liquid separating chamber and supplies the blowby gas to an intake passageway to a combustion chamber. | 06-06-2013 |
| 20130167816 | Crankcase Ventilation Self-Cleaning Coalescer with Intermittent Rotation - A method and system is provided for regenerating and cleaning an air-oil coalescer of a crankcase ventilation system of an internal combustion engine generating blowby gas in a crankcase. The coalescer coalesces oil from the blowby gas. The method and system includes regenerating and cleaning the coalescer by intermittent rotation thereof. | 07-04-2013 |
| 20130276767 | SEPARATION DEVICE FOR USE INI A SYSTEM FOR RECIRCULATION OF BLOW-BY GASES OF AN INTERNAL-COMBUSTION ENGINE - A separator device for a system for recirculation of blow-by gases of an internal-combustion engine comprises an elongated casing defining a separation chamber with an inlet at one end, for communication with the crankcase, an outlet at the second end, for communication with the intake system of the engine, and an end wall with at least one draining sump for draining the liquid separated in the separation chamber for return of the separated liquid into the crankcase. Associated to said inlet is an open/close element with flexible flap that opens when the crankcase is in overpressure with respect to the separation chamber, whereas associated to each draining sump is a membrane open/close element that, in the aforesaid condition of overpressure, closes, whereas, when the crankcase is in negative pressure, opens, enabling return of the liquid separated and collected inside each draining sump into the crankcase. In order to enable maximum efficiency of separation of the oil contained in the flow of blow-by gases that traverses the separation chamber, said chamber is without diaphragms set transversely with respect to the longitudinal direction of the device, and has one or more inner walls arranged parallel to the longitudinal direction of the device in such a way that the drops of oil contained in the gas flow separate by a phenomenon of adhesion to the aforesaid longitudinal walls. Said walls can, for example, be defined by a single sheet, for example in the form of a mesh folded in bellows fashion. | 10-24-2013 |
| 20130306044 | REFLUX STRUCTURE FOR BLOW-BY GAS - A reflux structure for blow-by gas that returns blow-by gas generated in an engine to a clean side of an air cleaner to reflux the blow-by gas to the engine, the reflux structure for blow-by gas includes: a communication pipe that has a flow path introducing the blow-by gas from the engine to the clean side of the air cleaner; and an air funnel that is mounted on the clean side of the air cleaner and introduces intake air from a dirty side into the engine, wherein the communication pipe has a discharge port formed to discharge the blow-by gas to a side closer to a bottom than to an umbrella part of the air funnel around the air funnel. | 11-21-2013 |
| 20130312720 | HEAD COVER BAFFLE SYSTEM FOR IMPROVING OIL MIST SEPARATION - An engine gas-oil separator for separating oil contents in blow-by gases that are recirculated into an intake system includes a head cover, a lower plate, and a plurality of baffles. The lower plate attaches to the head cover to define a separation chamber between an upper internal surface of the head cover and a lower internal surface of the lower plate. The separation chamber includes a blow-by gas inlet, a blow-by gas outlet and at least one oil outlet. The plurality of baffles are disposed in the separation chamber between the head cover and the lower plate. The plurality of baffles, the upper internal surface and the lower internal surface define a swirling flow path through the separation chamber in a longitudinal direction between the blow-by gas inlet in the blow-by gas outlet. The plurality of baffles are also configured to direct the blow-by gases in a generally transverse direction. | 11-28-2013 |
| 20130340733 | CYLINDER HEAD CAVITY VENTILATION FOR CAMLESS ENGINE - An engine assembly may include an engine structure, intake and exhaust valves, hydraulically actuated valve lift mechanisms, and a valvetrain ventilation line. The engine structure may define a combustion chamber, intake and exhaust ports in communication with the combustion chamber, a crankcase, and a valvetrain chamber isolated from the crankcase. The intake valve may be located in the intake port and the exhaust valve may be located in the exhaust port. The hydraulically actuated valve lift mechanisms may be supported on the engine structure within the valvetrain chamber and engaged with the intake and exhaust valves. The valvetrain ventilation line may be in communication with the valvetrain chamber and may provide communication between the valvetrain chamber and the intake port. | 12-26-2013 |
| 20140165977 | SEPARATOR - A separator has a first inlet arranged to receive a fluid stream, and first and second separation stages coupled together in series; A pump coupled to the second separation stage generates an area of reduced pressure to draw the fluid stream through the first and second separation stages. One of the stages includes a variable impactor separator comprising a first chamber arranged to receive the fluid stream, and a second chamber coupled to the first chamber through an aperture to accelerate the first fluid stream. The stream is incident upon an impaction surface to separate contaminants from the fluid stream. An actuator adjusts the open area of the aperture according to a pressure differential between fluid pressure in the first chamber and a reference fluid pressure in a third chamber. The other of the separation stages is a second variable impactor separator or a filter media. | 06-19-2014 |
| 20140202439 | OIL SEPARATOR - Embodiments may provide an oil separator that may include a reservoir attached to a bottom of the oil separator to collect oil that passes from the oil separator. An outlet may be located on the reservoir and may be positioned to allow oil at or above the outlet to overflow from the reservoir and to flow, or drip, toward an engine cylinder head. The oil separator may also include a tube located at least partially inside the reservoir formed within the bottom to pass the oil into the reservoir. | 07-24-2014 |
| 20140251290 | POSITIVE CRANKCASE VENTILATION SYSTEM - An engine assembly includes an engine and an intake assembly. The engine defines a combustion chamber and a crankcase, and the intake assembly includes an intake manifold in fluid communication with the combustion chamber. An air-oil separator is provided with the engine and defines a separator volume, an inlet and an outlet, where each of the inlet and outlet are in fluid communication with the separator volume. The inlet of the air-oil separator is provided in fluid communication with the crankcase, and the outlet of the air-oil separator is provided in fluid communication with the intake manifold. The air-oil separator further includes an interior surface that abuts and surrounds the separator volume, and defines a plurality of depressions, and each depression is respectively configured to retain a respective volume of fluid. | 09-11-2014 |
| 20140251291 | POSITIVE CRANKCASE VENTILATION SYSTEM FOR A TWO-CYLINDER ENGINE - An engine assembly includes a two-cylinder engine, an intake assembly, and an air-oil separator. The two-cylinder engine defines a first cylinder bore, a first combustion chamber, a second cylinder bore, a second combustion chamber, and a crankcase volume. The engine further includes a first piston disposed within the first cylinder bore, and a second piston disposed within the second cylinder bore. The intake assembly includes an intake manifold in fluid communication with each of the first and second combustion chambers, and the air-oil separator defines a separator volume and in fluid communication with each of the crankcase volume and the intake manifold. A reciprocal, synchronous motion of the first and second pistons is operative to exhale gas from the crankcase volume through the separator volume and into the intake manifold. | 09-11-2014 |
| 20140290634 | CRANKCASE BREATHER - A crankcase ventilation system for an internal combustion engine having a cylinder block that at least partially defines at least one cylinder includes a valve cover configured to be mounted on an individual cylinder head corresponding to an individual cylinder and form a cavity therein. Further a crankcase ventilation opening associated with the valve cover. A crankcase breather incorporated into the valve cover. The crankcase breather includes a breather body, an inlet portion in fluid communication with the cavity of the valve cover, and an outlet portion aligning with the crankcase ventilation opening of the valve cover. | 10-02-2014 |
| 20140326226 | FREEZE PREVENTION ARRANGEMENT FOR PCV CHANNEL AND INTAKE MANIFOLD - Provided are an arrangement capable of reliably preventing freeze of a PCV channel without requiring additional piping and an intake manifold having this arrangement. This arrangement for freeze prevention of a PCV channel includes a PCV channel returning blowby gas containing un-combusted fuel gas as a main component thereof and leaked into an engine to an intake port, an EGR channel returning exhaust gas exhausted from the engine to the intake port, and a heating portion as a common portion between a PCV outer wall of the PCV channel and an EGR outer wall of the EGR channel. | 11-06-2014 |
| 20140331979 | POSITIVE CRANKCASE VENTILATION SYSTEM AND METHOD FOR OPERATION - A positive crankcase ventilation (PCV) system is provided. The PCV system includes an oil return line coupled to a PCV oil separator and extending through a crankcase housing and a PCV bypass valve positioned in a wall of the oil return line, the PCV bypass valve opening when a pressure in the crankcase exceeds a threshold value and closing when a pressure in the crankcase falls below a threshold value. | 11-13-2014 |
| 20140352674 | MULTIPLE LAYER BYPASS HYDROCARBON TRAP - An air induction system for an engine includes an air filter box configured to receive an air filter that separates the air filter box into an atmosphere side and a filtered air side, a clean-air duct coupled downstream from the air filter box and upstream of the engine relative to a direction of air flow during engine operation, a flow-through hydrocarbon trap positioned within the clean-air duct, and a bypass hydrocarbon trap secured within the air filter box on the filtered air side, the hydrocarbon trap having a plurality of generally flat or coiled layers of hydrocarbon adsorbing material sandwiched together and secured one to another. Mechanical fasteners such as grommets may extend through the plurality of layers to secure the layers together. The fasteners may be secured to ribs extending along an upper surface of the air filter box or an interior surface of the clean-air duct. | 12-04-2014 |
| 20150027422 | Crankcase Ventilation Inside-Out Flow Rotating Coalescer - An internal combustion engine crankcase ventilation rotating coalescer includes an annual rotating coalescing filter element, an inlet port supplying blow by gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering clean separated, air from the exterior of the rotating element. The direction of flow by gas inside-out, radially, outwardly from the hollow interior to the exterior. | 01-29-2015 |
| 20150114368 | INTERNAL COMBUSTION ENGINE AND SEPARATOR STRUCTURE THEREOF - An internal combustion engine includes a cylinder block, an auxiliary machinery attachment member arranged at a side wall of the cylinder block, the auxiliary machinery attachment member to which an auxiliary machine is attached, and a separator portion disposed in a void between the cylinder block and the auxiliary machinery attachment member, the separator portion being provided as a separate member from the cylinder block and the auxiliary machinery attachment member to perform gas-liquid separation on blow-by gas. | 04-30-2015 |
| 20150300223 | OIL SEPARATOR IN A POSITIVE CRANKCASE VENTILATION SYSTEM OF AN ENGINE - An oil separator in a positive crankcase ventilation (PCV) system is described herein. The oil separator includes an oil separation conduit in fluidic communication with an intake conduit and an oil reservoir and an entry conduit including an entry conduit orifice arranged at an angle of between 80 and 100 degrees with regard to the oil separation conduit, the entry conduit orifice opening into the separation conduit at a point between the separation conduit outlet and the separation conduit inlet. | 10-22-2015 |
| 20160024984 | INTERNAL COMBUSTION ENGINE WITH A DOUBLE-STAGE SEPARATION BLOW-BY GAS RECIRCULATION SYSTEM - An engine includes a crankcase; an oil sump; at least one balancing shaft mounted in a balancing tunnel of the crankcase, which includes first and second end portions and a central portion extending between the end portions; and a blow-by gas recirculation system having an inlet channel communicating with the oil sump, an outlet channel communicating with an intake manifold, a centrifugal separator arranged between said inlet and outlet channels, and a drainage channel opening into the oil sump for discharging separated liquid. The inlet channel communicates with said first end portion, and said centrifugal separator is housed in said second end portion and is driven in rotation by said balancing shaft. The outlet channel communicates with a gas outlet of said centrifugal separator, whereby, during operation, blow-by gas flows successively through the central portion and the centrifugal separator in a path from the inlet to the outlet channel. ea | 01-28-2016 |
| 20160090882 | BREATHER DEVICE FOR ENGINE - There is provided a breather device for an engine and capable of suppressing forming of separated oil into mist again. The breather device for the engine includes an oil filter chamber at a midpoint of a blow-by gas passing route and an oil filter housed in the oil filter chamber. The oil filter chamber is partitioned with a partition wall into an upstream filter chamber and a downstream filter chamber arranged in a front-back direction, the filter is formed by an upstream filter and a downstream filter, the upstream filter is housed in the upstream filter chamber and the downstream filter is housed in the downstream filter chamber, respectively, and a side gas expansion chamber is provided beside the oil filter chamber so that blow-by gas flows from the upstream filter into the downstream filter through the side gas expansion chamber. | 03-31-2016 |
| 20160108782 | VIBRATION-TYPE OIL SEPARATOR AND BLOW-BY GAS RECIRCULATION SYSTEM EMPLOYING THE SAME - A vibration-type oil separator includes a housing having a blow-by gas entering path through which a blow-by gas enters, an oil-discharging path which discharges an oil separated from the blow-by gas to outside, and a gas-discharging path which discharges a gas obtained by separating the oil from the blow-by gas to the outside. A vibration cylinder has an orifice formed thereon for escaping the gas and generating vibration by a back pressure of the blow-by gas and an external force applied to the housing to separate the oil and the blow-by gas. A fixing rod fixes the vibration cylinder in an internal space of the housing, in which both side portions thereof are fixed to the housing and a central portion thereof is fixed to the vibration cylinder. | 04-21-2016 |
| 20160138443 | OIL SEPARATOR - An oil separator includes a housing into which mixed gas in which unburned gas and engine oil are mixed with each other is introduced from a crank case; a centrifuge mounted in the housing and generating centrifugal force to the mixed gas to thereby separate the engine oil from the mixed gas; and a filter separator mounted in the housing and filtering the engine oil in the mixed gas. Since the engine oil is primarily separated through the centrifuge and secondarily separated through the filter separator, engine oil separation efficiency is improved as compared to the related art, and the same amount of gas may be treated even with a small size as compared to the related art. | 05-19-2016 |
| 20160138446 | OIL SEPARATOR FOR CRANKCASE VENTILATION OF AN INTERNAL COMBUSTION ENGINE - An oil separator may be used in a variety of contexts, one of which is for crankcase ventilation of an internal combustion engine. The oil separator may include a hollow member that extends along a longitudinal axis and is configured to receive a gas flow that is charged with oil. The oil separator may also include an oil separation member disposed within the hollow member and against which the gas flow flows. A redirection member may be disposed proximate the oil separation member in the hollow member, wherein the redirection member redirects at least a portion of the gas flow traveling substantially along the longitudinal axis radially outwards so as to impact an inner side of the oil separation member. As a result of an impactor effect from the gas flow striking the oil separation member as well as the inertia of the oil, the oil may remain in and/or pass through the oil separation member. | 05-19-2016 |
| 20160169069 | BLOW-BY DEVICE | 06-16-2016 |
| 20160177791 | OIL MIST SEPARATOR | 06-23-2016 |
| 20160194988 | HOUSING FOR A CRANKCASE VENTILATION SYSTEM | 07-07-2016 |
| 20160251987 | METHOD TO CONTROL THE SEALING OF A BLOW-BY GAS BREATHER CIRCUIT OF AN INTERNAL COMBUSTION ENGINE | 09-01-2016 |
| 20160376950 | BLOW-BY GAS OIL SEPARATOR - A blow-by gas oil separator that can prevent oil discharged into an oil receiving chamber from flowing backward into a cyclone includes: multiple cyclones to which blow-by gas of an internal combustion engine is supplied, each cyclone including, in a lower portion, an oil discharge opening that separates out and discharges oil mist contained in the blow-by gas, and including, in an upper portion, a blow-by gas outlet that allows the blow-by gas to flow out after oil separation; an oil receiving portion opposing the oil discharge openings of the cyclones; a blow-by gas circulation portion in communication with the blow-by gas outlets of the cyclones, and is connected to an air intake passage of the internal combustion engine via a circulation valve; and partition walls in an oil receiving chamber formed by the cyclones and the oil receiving portion to separate adjacent oil discharge openings from each other. | 12-29-2016 |
