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Crankcase Ventilation

Crankcase Ventilation patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Internal-combustion Engines


Crankcase Ventilation



Engine and ventilation system for an engine
09/18/14 - 20140261260 - A ventilation system for an engine is disclosed. The ventilation system may include a first conduit configured to connect an exhaust system of the engine with a crankcase of the engine, a second conduit configured to connect to a vent of the crankcase, and a valve disposed within the second...

Fuel distribution block
09/04/14 - 20140245976 - The invention relates to a fuel distributor block for an internal combustion engine. Said fuel distributor block having a belt arrangement, wherein the belt arrangement comprises a belt, which is operatively connected to a belt pulley coupled to a shaft, for the purpose of driving an assembly, in particular an...

Air/oil separator assemblies, components; and, methods
09/04/14 - 20140245977 - Crankcase ventilation filter assemblies, features, components, and methods of assembly and use provide for convenient assembly; efficient space usage; and/or preferred operation....

Spray cooled oil system for an internal combustion engine
08/07/14 - 20140216371 - An engine includes a crankcase defining a crankcase space, a first shaft disposed at least partially within the crankcase and supported for rotation by the crankcase, and an oil pump coupled to the first shaft and operable to draw low pressure oil from the crankcase and discharge a flow of...

Control housing cover for an internal combustion engine
07/03/14 - 20140182525 - A control housing cover for an internal combustion engine includes an engine block cover portion having a plurality of apertures, an oil separator for blow-by gases integrated into the control housing cover, an engine support plate operable for securing supporting the internal combustion engine in place and wherein the oil...

Crankcase integrity breach detection
03/20/14 - 20140076249 - Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple...

Engine assembly with engine block-mounted air-oil separator and method of ventilating an engine crankcase
10/17/13 - 20130269636 - An engine assembly includes an engine block at least partially defining a combustion chamber and a crankcase volume. The engine block defines an opening in fluid communication with the crankcase volume. An air-oil separator is mounted to the engine block at the opening and is configured to separate oil from...

Pcv system having internal routing
05/09/13 - 20130112159 - A positive crankcase ventilation (PCV) system is provided herein. The PCV system includes an engine assembly, the engine assembly including an engine block, a cylinder head, a valve cover, and an intake manifold and a PCV passage providing fluidic communication between a crankcase of the engine assembly and a cylinder...

Engine assembly including crankcase ventilation system
05/02/13 - 20130104817 - An engine assembly includes an engine structure, an air intake assembly and a crankcase ventilation assembly. The engine structure defines a cylinder bore, an intake port and a crankcase. The air intake assembly is in communication with the intake port. The crankcase ventilation assembly includes a housing and a baffle...

Separator
12/20/12 - 20120318215 - A separator for separating contaminants from a fluid stream has first and second chambers coupled by an aperture through which fluid can pass. An actuator can adjust the crossectional area of the aperture according to a pressure differential between the first chamber and a pressure reference. An impaction surface can...

Valve for limiting the pressure in a crankcase
11/01/12 - 20120272930 - A valve for limiting the pressure in a crankcase of a motor vehicle, comprising a first line and a second line, which can be fluidically connected by a movable body, the body being connected to a rolling diaphragm and, together with the rolling diaphragm, being able to expose or close...

Wound hydrocarbon trap
09/20/12 - 20120234269 - An air induction system hydrocarbon trap is provided. In one example, the hydrocarbon trap includes an adsorber roll including an adsorbing material and a corrugate support, where the corrugate support is rolled with the adsorbing material to form a wound adsorber roll. A housing is further provided to retain the...

Pcv anti-freezing apparatus for two-cylinder engine
05/31/12 - 20120132158 - A PCV anti-freezing apparatus for two-cylinder engine may include a PCV (Positive Crankcase Ventilation) nipple connected to an intake manifold of a two-cylinder engine, and an oil separator formed within the PCV nipple....

Adsorbent structures for removal of water and fuel contaminants in engine oil
05/03/12 - 20120103286 - Devices and methods for removal of condensed, blow-by contaminants with small molecular dimensions from the circulating lubricating engine oil of internal combustion engines, including automotive engines, with a positive crankcase ventilation system are disclosed. These condensable blow-by contaminants include water, alcohols and hydrocarbons with preponderantly seven or fewer carbon atoms....

Coupling device, crankcase ventilation device and fresh air system
01/19/12 - 20120012074 - A coupling device for connecting a first fluid line to a second fluid line may include a first connecting piece having a first outer latching contour on its outside and may be connected to at least one of the first fluid line and the first outer latching contour. The coupling...

Method for operating an internal combustion engine
10/20/11 - 20110253079 - In a method for operating an internal combustion engine, a crankcase of the internal combustion engine has a vent into the intake section of the internal combustion engine, and upon outgassing of fuel out of engine oil present in the crankcase, the operating point of the internal combustion engine is...

Method for operating an internal combustion engine
10/06/11 - 20110239965 - The invention relates to a method for operating an internal combustion engine with a crankcase, a crankcase vent and an intake system. According to the invention, the pressure in the crankcase can be reduced, depending on a differential pressure between the intake system and the crankcase, to maximally −500 mbar,...

Engine for vehicle
06/30/11 - 20110155082 - The present invention relates to an engine for a vehicle, particularly a breather structure in an engine for a vehicle provided with a V-belt type continuously variable transmission. The engine includes a crankcase having a crank chamber and a gear transmission chamber, and a V-belt transmission case housing the V-belt...

Positive crankcase ventilation system
06/16/11 - 20110139098 - A positive crankcase ventilation system for an internal combustion engine comprises an intake manifold having a plurality of intake runners configured to deliver combustion air to the internal combustion engine. An intake manifold positive crankcase ventilation passage is disposed in the intake manifold and is in fluid communication with a...

Crankcase vent nozzle for internal combustion engine
05/26/11 - 20110120397 - A crankcase ventilation system is provided. The crankcase ventilation system is fluidly coupled between an engine block assembly and an axially extending air inlet adapter. A crankcase vent nozzle is provided as one aspect of the system and extends into the air inlet adapter. The crankcase vent nozzle has a...

Engine equipped with breather mechanism
04/21/11 - 20110088641 - Breather mechanism includes a breather passage opening into a crankcase, a breather chamber communicating with the crankcase via the breather passage, and a valve provided in the breather chamber and openable to allow blow-by gas to flow from the crankcase into the breather chamber once inner pressure of the crankcase...

Dual function crankcase breather system
04/14/11 - 20110083625 - A breather system functions, during cold operation, as an open breather system, and functions as a closed breather system once the engine has sufficiently warmed. The breather system includes a first flow path between the engine crankcase and an air intake for the engine, and a three-way valve located within...

Separator for a crankcase ventilation of an internal combustion engine
02/10/11 - 20110030629 - The invention relates to a separator (1) for a crankcase ventilation of an internal combustion engine. The separator (1) comprises at least one turbulence chamber (2), which extends along a longitudinal axis (3), wherein said turbulence chamber (2) has a tangential inlet for a ventilation flow (6) at an intake-side...

Crank case ventilation filter assembly; and methods
01/27/11 - 20110017155 - Crankcase ventilation filter arrangements and components therefore are described. Example arrangements are described. In one, a serviceable filter cartridge includes a check valve therein, for protection during vehicle rollover. Handle arrangements are also described. Methods of use are described....

Air injection system for engine exhaust
01/13/11 - 20110005479 - An engine with an exhaust pathway air injection system includes a combustion chamber having an exhaust port and a crankcase having an opening formed in the crankcase. The opening is designed to allow pressure pulses from within the crankcase to be received through the opening. The engine also includes an...

Crank case ventilator
12/16/10 - 20100313830 - The present invention relates to a ventilation device (5) for ventilating a crankcase (6) of an internal combustion engine (1), particularly in a motor vehicle, comprising a ventilation line (26), which is connected at the input side to the crankcase (6) of the internal combustion engine (1) in the mounted...

Device for ventilating a crankcase
11/25/10 - 20100294218 - The invention relates to a device (1) for ventilating a crankcase of an internal combustion engine, comprising a ventilation line leading from the crankcase to the suction line of the internal combustion engine, an oil-mist separator (2) for separating the oil parts from the blow-by-gases containing the oil-mist from the...

Internal combustion engine and method of operating same
11/18/10 - 20100288214 - An internal combustion engine and a method for maximizing fuel efficiency of an internal combustion engine. The internal combustion engine includes an engine block assembly having an electromagnet coupled thereto and an engine component movable relative to the engine block assembly. The engine component includes a permanent magnet coupled thereto....

Crankcase ventilation system with pumped scavenged oil
07/15/10 - 20100175642 - A crankcase ventilation system for an internal combustion engine has a jet pump suctioning scavenged separated oil from the oil outlet of an air/oil separator and pumping same to the crankcase....

Structural oil baffle for engine covers
06/17/10 - 20100147235 - An oil baffle, a system, and a method are disclosed for separating a gaseous component from oil in a blow-by vapor for an internal combustion engine. An example system may include a cam cover configured to be mounted on a cylinder head. The system may also include an oil baffle...

Crankcase ventilation filter assembly
06/10/10 - 20100139585 - A filter assembly (100) comprises a housing (200) and a filter cartridge (300) that incorporates crankcase pressure-regulating components. The cartridge (300) includes an end cap (330), a plunger (340), and a spring (350). When the filter cartridge (300) is installed in the housing (200), the plunger (340) interacts with a...

Crankcase ventilation apparatus of an internal combustion engine
05/27/10 - 20100126441 - A crankcase ventilation apparatus of an internal combustion engine of a motor vehicle, including an oil-mist separator for the separation of oil from the crankcase ventilation gas of the internal combustion engine and including an assembly for the return of lubricating oil from the oil-mist separator to an oil pan...

Oil fill cap with air/oil separator
05/20/10 - 20100122675 - An oil fill cap for an internal combustion engine replaces a standard cap and provides separation of air and oil in a separation zone within the cap body....

Positive crankcase ventilation system, cylinder head used for positive crankcase ventilation system, internal combustion engine including positive crankcase ventilation system, and positive crankcase ventilation method
04/29/10 - 20100101514 - A blow-by gas collection passage (91) extends in a cylinder block (1) and a cylinder head (3). A crank chamber (61) is connected to an oil separator (92) through the blow-by gas collection passage (91). A cutout portion is formed in an upper end portion of a wall portion (97)...

High vacuum crankcase ventilation
04/15/10 - 20100089345 - A combustion engine is configured to substantially reduced pressure in the crankcase relative to atmospheric conditions. Under the conditions of reduced pressure, removal of contaminants present in the lubricating oil present is effected, which may provide one or more benefits including extended service intervals, reduced volumes of motor oils used,...

Crankcase pressure regulator for an internal combustion engine
04/01/10 - 20100077972 - An internal combustion engine that includes a crankcase having a crankcase pressure defined within the crankcase relative to an ambient pressure. The crankcase pressure varies in response to operation of the internal combustion engine. A crankcase pressure regulator is in fluid communication with the crankcase, and the crankcase pressure regulator...

Flexible tongue valve for an oil separation device in the crankcase ventilation of a motor vehicle
03/04/10 - 20100050962 - A flexible tongue valve for an oil separation device in the crankcase ventilation of a motor vehicle includes a flexible tongue which on one end is suspended in a cantilevered manner and on the opposite end interacts with a valve seat. The flexible tongue comprises a bistable portion with a...

Crankcase ventilation system with engine driven pumped scavenged oil
02/25/10 - 20100043734 - A crankcase ventilation system for an internal combustion engine has an engine driven pump pumping scavenged separated oil from the oil outlet of an air-oil separator to the crankcase, preferably using engine generated pulsating oscillatory positive and negative relative pressure pulses....

System and method for crankcase gas air to fuel ratio correction
02/11/10 - 20100031904 - A method and a system for correcting combustion in an engine to control for the effect of crankcase gases in the intake system are disclosed. The system includes one or more sensors in the crankcase ventilation system. An air to fuel ratio sensor may be disposed within a breather line...

Adaptive pressure control valve with variable switching point
12/17/09 - 20090308337 - A valve for the control of a gas stream is provided with a valve housing enclosing a valve chamber. At least one pressure-sided inlet and at least one suction-sided outlet is provided with a valve opening between them to link them. An elastically movable control membrane is arranged at the...

Crankcase ventilation system
08/27/09 - 20090211544 - An oil-collecting can (500) for a filter cartridge (300) comprises a plurality of capillary ribs (530) that are sized and shaped to contact filter media in the outlet chamber. The oil-collecting can (500) can be used in conjunction with a filter cartridge (300), which is installed in a filter assembly...

Abnormality diagnosis device for positive crankcase ventilation apparatus
08/27/09 - 20090211545 - An abnormality diagnosis device for diagnosing abnormality in a positive crankcase ventilation apparatus including a PCV passage, which is for supplying blow-by gas to an intake passage of an engine, and a PCV valve, which is for regulating the flow rate of blow-by gas in the PCV passage. The diagnosis...

Crankcase ventilation system
08/13/09 - 20090199794 - A ventilation system for use with an internal combustion engine having a crankcase is disclosed. The ventilation system may have a breather housing connected to ventilate gases from the crankcase, and a filtration canister fluidly connected downstream of the breather housing. The filtration canister may have a filter housing, a...

Blow-by gas reducing device
04/30/09 - 20090107425 - The present invention provides a blow-by gas reducing device capable of adopting an exhaust pump with a small discharge rate and capable of suppressing oil degradation by reducing the mixing of bubbles in oil. The device includes: an oil pan of an engine; an oil tank; a first communication passage...

Internal combustion engine with breather chamber
03/19/09 - 20090071421 - A cylinder head cover, on which a breather chamber wall and control valve device are mounted is not enlarged while the capacity of a breather chamber is increased. For an internal combustion engine, control valve devices, which control the operation of a hydraulic valve stop mechanism that serves as a...

Crankcase breather assembly
03/12/09 - 20090064948 - A breather assembly for ventilation and pressure control within a crankcase of a positive displacement motor or pump. The breather assembly includes an intake/exhaust port through the crankcase with a valve seat for the port on an exterior surface of the crankcase. A flexible valve membrane is positioned over the...