Aspects of the present invention relate to an apparatus comprising at least two chambers, each chamber comprising at least one wall defining the chamber, a fluid inlet and a fluid outlet through the wall of the chamber and an opening separate from the fluid inlet and fluid outlet. The fluid inlet and fluid outlet are configured such that a fluid enters the chamber via the fluid inlet and exits via the fluid outlet. A gas enters the chamber via the fluid inlet and exits the chamber via the opening, wherein the opening of each of the chambers is fluidly connected to a common fluid reservoir. The apparatus may be used for degassing multiple coolant circuits in a vehicle.

A deaeration valve includes a housing and a ball in fluid communication with housing. The ball can include a body, a seat defining a bleed passage therein, and a deaeration pin slidably disposed within the bleed passage. Further, the deaeration pin may include a head, a retention feature, and a shaft positioned between the head and the retention feature.

Methods and systems are provided for estimating a cooling demand of a vehicle powertrain component and selecting a mode of operation of a vehicle cooling system based on the estimated cooling demands of the vehicle powertrain component and the energy usage of the cooling system components. Based on the selected operating mode, each of a radiator fan speed, a coolant system pump output, a vehicle grille shutter opening, and an opening of vents coupled to a powertrain component insulating enclosure may be concurrently adjusted to minimize the cooling parasitic losses while satisfying the cooling requirements of the vehicle.

A cooling system for a vehicle is provided. The system includes a valve that is disposed at a predetermined position in a cooling channel to discharge bubbles produced in a coolant out of the cooling channel. Additionally, a controller is configured to detect whether bubbles have been produced in the coolant using a rate of pressure change based on a temperature increase in the cooling channel and open the valve in response to detecting that bubbles have been produced.

An outboard motor includes a catalyst housing passage disposed inside the V-shaped line, a cooling water passage including at least a portion disposed at a periphery of a catalyst and that guides cooling water that cools an exhaust passage and a vent hole disposed higher than the catalyst and that connects the interior of the cooling water passage to the exterior of the cooling water passage.

An engine cylinder block forms a cooling jacket adjacent to a cylinder and that intersects a deck face adapted to mate with a cylinder head. The cooling jacket has an inlet passage intersecting a mounting face adapted to mate with a coolant pump housing. The block forms a vent passage extending from the cooling jacket to the mounting face. The pump housing forms a volute adapted to receive an impeller. The housing forms a discharge passage that fluidly connects to the inlet passage of the block. The pump housing also forms a vent passage the fluidly connects with the vent passage of the block. The vent passages of the block and pump housing are positioned between the deck face of the block and the inlet and discharge passages when the pump housing is connected to the engine block.

A degas bottle for a motor vehicle coolant system is provided. The degas bottle has a body defining an enclosed cavity bounded by an upper wall, a lower wall and a side wall extending between said upper and lower walls. An inlet extends into an upper region of the cavity proximate the upper wall and an outlet extending outwardly from a lower region of the cavity proximate the lower wall. An interior wall is disposed in the enclosed cavity. The interior wall extends from the upper wall toward the lower wall to a free end spaced from the lower wall. The interior wall has a vent opening proximate the upper wall and extends to the side wall on opposite sides of the inlet. A baffle is disposed between the interior wall and the inlet. The baffle extends from one of the upper wall or the lower wall to a free end spaced from the other of the upper wall or the lower wall.

A radiator filler neck for use with a radiator includes a core between upper and lower tanks and a pressure-valve radiator cap. The filler neck includes a hollow cylindrical body including a side wall between upper and lower openings. The upper opening includes an upper sealing seat for the radiator cap. The lower opening includes an internal sealing seat for the pressure valve of the radiator cap. The body has an interior within the side wall and between the upper and lower openings. An overflow aperture is provided in the interior of the body to permit transfer of overflow from the interior via an overflow passage to a concealed exterior overflow outlet; and the side wall does not include a visible exterior overflow outlet.

A reservoir for a vehicle is provided. The reservoir is accommodated in a body formed by joining an upper case and a lower case to each other. A high-pressure reservoir space introduces and discharges coolant flowing from a high pressure cooling line and a low-pressure reservoir space introduces and discharges coolant flowing from a low pressure cooling line. A valve is also installed to maintain internal pressure of the high-pressure reservoir space and the low-pressure reservoir space constant.

A reservoir tank with an integrated ejector, includes: a tank body having a space in which a coolant and a gas are contained; and an ejector integrally coupled to the tank body, wherein the ejector is configured to cool the gas produced from a gas source using the coolant contained in the tank body before the gas flows into the tank body.