An apparatus and methods are provided for removing trapped air from a cooling system of an internal combustion engine. The apparatus includes an air bleed valve configured to allow the trapped air to be vented from a water jacket comprising an engine cylinder head. The air bleed valve is coupled with a hollow portion disposed at a top of the cylinder head. A topmost chamber within the hollow portion is in fluid communication with the water jacket. The water jacket includes angled upper walls near the hollow portion configured to direct the trapped air into the topmost chamber. An air bleed line is coupled with the air bleed valve and configured to direct the trapped air out of the topmost chamber to a suitable coolant reservoir.

The invention relates to a vortex degassing device (1) for a fluid transfer circuit (F1, F2), in particular of a motor vehicle, this device (1) comprising: a first internal chamber (10) connected to a first inlet (11) for a fluid (F1) as well as to a first outlet (12) for a liquid fraction and to a second outlet (13) for a gaseous fraction, a second internal chamber (20) connected to a second inlet (21) for a fluid (F2) as well as to a third outlet (22) for a liquid fraction and to a fourth outlet (23) for a gaseous fraction,
the second chamber (20) being located above the first chamber (10) and the second outlet (13) extending through the second chamber (20) to the level of the fourth outlet (23). The invention also relates to a fluid transfer circuit comprising at least one such device (1) as well as a method for using such a device (1).

This disclosure pertains to a device for removing air from a coolant liquid of a coolant system. The device has a body, a swirl pot having a first fluid outlet, and a pump end wall formed with the body and connected to the first fluid outlet. The pump end wall provides a second fluid outlet.

An air release structure of an integrated flow control mechanism includes a flow control housing, a radiator nipple provided on an upper portion of the flow control housing and forming a bypass passage portion together with the flow control housing, a float provided in the bypass passage portion and an elastic member to support the float elastically and to selectively open the bypass passage portion.

Methods and systems are provided for a cooling system. In one example, a system comprising a housing comprising a first chamber fluidly coupled to a first cooling circuit and a second chamber fluidly coupled to a second cooling circuit. A reservoir is arranged vertically above each of the first chamber and the second chamber within the housing. A transverse wall fluidly separates the reservoir from the first and second chambers and a dividing wall physically coupled to the transverse wall, separates the first and second chambers from one another. Each of the transverse wall, dividing wall, first chamber, and the second chamber are arranged vertically below a minimum fill line of the reservoir.

A reserve tank includes a gas-liquid separator, a flow inlet portion, a flow outlet portion, and a projection shaped in a tubular form. The gas-liquid separator is shaped in a bottomed tubular form and is centered on a predetermined axis. The flow inlet portion is configured to conduct coolant into an inside of the gas-liquid separator. The flow outlet portion is configured to discharge the coolant from the inside of the gas-liquid separator. The projection extends along the predetermined axis from a bottom wall at the inside of the gas-liquid separator. An inner space of the projection opens to an inner space of the gas-liquid separator at a distal end portion of the projection.

A coolant equalizing reservoir for arrangement in a coolant circuit, having: a reservoir housing, a degassing chamber in the reservoir housing, inside the former of which coolant flow along a curved degassing flow path, a feed line for introducing coolant into the reservoir housing, and an outflow opening for discharging coolant from the reservoir housing,
where both the feed line and the outflow opening open into the degassing chamber, and where it is provided that the degassing chamber is configured as a flow duct proceeding along a curved duct path, where the duct path defines the degassing flow path.

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.

One or more techniques and/or systems are disclosed for a new coolant tank that may also provide a structural element to the frame of the engine compartment. The coolant tank is comprised of a rear wall that also makes up a portion of the firewall in the engine compartment. A structural coolant tank component is engaged with the rear wall to form the coolant reservoir. The coolant reservoir can provide support to attach structural elements of the vehicle, and can also allow for improved space efficiency in the engine compartment. Further, improved access to the filling port is provided, while continued operation and desired function is maintained even at extreme vehicle tilt.

Disclosed is a cooling system comprising a cooling circuit with a deaeration device arranged in the cooling circuit for separation of air bubbles from coolant circulating therein. The deaeration device comprises a deaeration chamber having a coolant inlet connected to a feed pipe of the cooling circuit, a first coolant outlet connected to a coolant pump of the cooling circuit, and a second coolant outlet connected to an expansion tank via a static line. The deaeration chamber has a larger cross-sectional dimension than said feed pipe. The second coolant outlet is located in such a position in relation to the coolant inlet and the first coolant outlet that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet.