A crankcase ventilation system comprises a housing defining an internal volume structured to receive a. rotating air/oil separator element. The housing has a housing inlet structured to receive a fluid and a housing outlet defined tangentially in a sidewall of the housing which is structured to allow the fluid to exit the housing. An outlet conduit is fluidly coupled to housing outlet. The outlet conduit comprises an outlet conduit first portion axially aligned with the housing outlet, and an outlet conduit second portion positioned downstream of the outlet, conduit first, portion. A swirl breaking structure is positioned in at least one of an outlet conduit inlet and the outlet conduit second portion. The swirl breaking structure is configured to disrupt swirling flow of the fluid into the outlet conduit so as to reduce a pressure drop experienced by the fluid as the fluid flows from the housing into the outlet conduit.

An apparatus that improves the gas mileage of an internal combustion engine in a vehicle is disclosed that is comprised of an air inlet, a condensation chamber, and an air outlet that is connected to the vehicle's oil system through an oil filler port in the engine of the vehicle.

A crankcase ventilation device includes a housing and a flow directing member. The housing defines an inlet, an outlet and an internal volume. The inlet is configured to receive blow-by from an engine. The flow directing member is coupled to the housing and extends into the internal volume. The flow directing member includes a plurality of sidewalls, at least two of the plurality of sidewalls defining a window that fluidly couples the inlet to the internal volume. A filter media may be coupled to the flow directing member.

A gas-liquid separation device includes a gas-liquid separation chamber in a head cover that defines a valve gear chamber, a partition wall that changes a direction of blow-by gas that flows in the gas-liquid separation chamber, and a blow-by gas suction passage extending from the gas-liquid separation chamber to an intake-side valve gear chamber. The upstream end of the blow-by gas suction passage defines an opening in a vicinity of a bottom wall of the valve gear chamber (intake-side valve gear chamber). The gas-liquid separation device removes an oil mist in the blow-by gas while using a compact and simple gas-liquid separation structure.

A diffuser for a jet pump of a separator comprises an inlet defining a first flow area; an outlet in fluid communication with the inlet through which fluid exits the diffuser, in which a flow path extends from the inlet to the outlet, and in which the outlet defines a second flow area greater than the first flow area so that a velocity of fluid flowing through the inlet is greater than a velocity of fluid flowing through the outlet; and a communication port extending through a wall of the diffuser with an inlet in communication with an interior of the diffuser and an outlet in communication with an exterior of the diffuser, in which the communication port inlet is between the diffuser inlet and the diffuser outlet, so that contaminants separated from the fluid stream are removed through the communication port.

An internal combustion engine includes a block containing a crankshaft and a crankcase surrounding the crankshaft, a plurality of combustion chambers configured to receive an intake fluid and generate exhaust fluid, an exhaust circuit configured to direct the exhaust fluid away from the plurality of combustion chambers, an intake circuit configured to supply the intake fluid to the plurality of combustion chambers, a turbine disposed in the exhaust circuit and having a turbine shaft configured to be driven by the exhaust fluid, a crankcase ventilation circuit configured to direct crankcase fluid away from the crankcase, and a pump disposed in the crankcase ventilation circuit and having a rotor configured to be driven by the turbine shaft to propel the crankcase fluid through the crankcase ventilation circuit.

An engine assembly includes an engine structure including an engine block defining a combustion chamber and a crankcase, and a cylinder head mounted to the engine block. An oil fill tube is connected to the engine structure. A separator assembly includes a separator chamber having a positive crankcase ventilation tube inlet connected to a positive crankcase ventilation passage and having a positive crankcase ventilation tube outlet. The separator chamber includes an internal baffle and a check valve in a bottom of the separator chamber in communication with a drain chamber, the drain chamber being in communication with the oil fill tube.

A ventilation apparatus of an internal combustion engine of the invention ventilates a chain chamber by recirculating blow-by gas to an intake passage through a blow-by gas recirculation pipe and introducing air into the chain chamber through an air introduction pipe. The air introduction pipe is secured to a head cover wall portion which corresponds to a portion of a head cover wall which defines the chain chamber.

A method of encoding video including: writing a plurality of predetermined buffer descriptions into a sequence parameter set of a coded video bitstream; writing a plurality of updating parameters into a slice header of the coded video bitstream for selecting and modifying one buffer description out of the plurality of buffer descriptions; and encoding a slice into the coded video bitstream using the slice header and the modified buffer description.

The invention relates to a cover assembly for covering of a cylinder head with a lid, a frame and at least one air-oil separator, as well as the use of such a cover assembly as an enclosure for at least one cylinder head of a combustion engine of a vehicle or a combustion engine for stationary use.