Scania Cv Ab

Scania Cv Ab (publ)

Scania Cb Ab

Scania Cv Aktiebolag

Zoltan Kardos

Erik Söderberg

Ola Hall

Hans Wikström

Björn Johansson

Erik Höckerdal

Martin Mohlin

Henrik Pettersson

Rickard Pettersson

Tomas Alsterdal

Henrik Nyrén

Rickard Eriksson

Rolf Dybdal

Mats Ekman

Jonas Aspfors

Thomas Sederholm

Stig Hildahl

Johan Åkeson

Pehr Söderberg

Thomas Hällqvist

Markus Mustonen

Henrik Nyren

Richard Jansson

Kristoffer Klingberg

Magnus Carlsson

Johan Linderyd

Roland Ivarsson

Thomas Alsterdal

Björn Kylefors

Henrik Höglund

Dieter Jahns

Johanna Hult

Thomas TIMRÉN

A cooling system is disclosed having a cooling circuit with a deaeration device arranged in the cooling circuit for separation of air bubbles from coolant circulating in the coolant circuit. The deaeration device includes 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 the feed pipe. The second coolant outlet is located in a position in relation to the coolant inlet and the first coolant outlet such 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.

Cooling system and vehicle comprising such a cooling system

A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.

Thermal management system, powertrain, and vehicle

A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.

Multiple circuit thermal management system comprising mixing lines, and vehicle

A thermostat device () for a cooling system in a vehicle. The device () includes a thermostat housing () enclosing a movably arranged valve body (). The valve body is configured to distribute coolant from a thermostat chamber () to a radiator bypass line () and/or a radiator () in dependence on the position of the valve body. The device () has a first thermal expansion element () providing a first stroke of a valve body () in response to the temperature of the coolant in a the pilot chamber (), and a second thermal expansion element () providing a second stroke of the valve body () in response to the temperature of the coolant in the thermostat chamber () such that the valve body () is moved to a position defined by the strokes from the thermal expansion elements (). The pilot chamber () has an outlet passage () for directing coolant from the pilot chamber () to the thermostat chamber ().

Thermostat device for a cooling system and a cooling system comprising said thermostat device

A cooling system includes a first circuit (A) configured to cool a combustion engine () and a second circuit (B) configured to cool a condenser () in a WHR system. The second circuit (B) has a second radiator (), a first inlet opening (B) at which the second circuit (B) receives a coolant from a first position of the first circuit (A), a condenser inlet line () configured to direct coolant to the condenser () and an outlet opening (Bo) at which the coolant is directed back to the first circuit (A). The second circuit (B) further has a second radiator bypass line () directing coolant past the second radiator (), and a second valve device (') configured to distribute the coolant between the second radiator () and the second radiator bypass line () such that a coolant mixture is received in the condenser inlet line () which is able to cool the working medium in the condenser () to a desired condensation temperature.

Cooling system for a combustion engine and a WHR system

The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.

Arrangement comprising a WHR system and a method for controlling such an arrangement

The present invention relates to a cooling system comprising a first cooling circuit cooling a first object, a second cooling circuit cooling a second object, an expansion tank, a first deaeration line directing coolant and air from the first cooling circuit to the expansion tank, and a second deaeration line directing coolant and air from the second cooling circuit to the expansion tank. The cooling system comprises further a deaeration valve configured to control the flow through the first deaeration line, a single expansion tank outlet line configured to direct all coolant in the expansion tank to the second cooling circuit and a connection line configured to direct coolant from the second cooling circuit to the first cooling circuit.

Cooling system comprising at least two cooling circuits connected to a common expansion tank

A cooling system for a combustion engine and a WHR-system in a vehicle () includes a first line () directing coolant at a first temperature (T) to a condenser () of the WHR system, a second line () directing coolant at a second temperature (T) to the condenser (), a valve arrangement () by which the flow rate of the coolant in at least one of the lines () is adjustable and a control unit () configured to control the valve arrangement () such that the coolant directed to the condenser () from the lines () has a temperature and a flow rate which results in a cooling of the working medium in the condenser () to a predetermined condensation temperature/pressure at the actual operating condition.

A cooling arrangement for a WHR-system in a vehicle, includes a first cooling circuit including a first radiator in which a circulating coolant is cooled, and a second cooling circuit including a second radiator in which a coolant is cooled to a lower temperature than the coolant in the first radiator. A condenser inlet line directs coolant from one of the cooling circuits to a condenser to provide cooling for a working medium flowing therethrough. A cooling adjusting device adjusts the temperature of the coolant in the inlet line to the condenser by the coolant in the other cooling circuit based on information received about the coolant such that the coolant in the condenser inlet line provides the estimated suitable cooling of the working medium in the condenser.

Cooling arrangement for a WHR-system

Disclosed is a cooler arrangement for cooling a cylinder of a combustion engine. The cylinder has a cylinder head and a cylinder liner. The arrangement comprises a cooling circuit with a first flow passage which leads coolant through a lower part of the cylinder head, a second flow passage which leads coolant through an upper part of the cylinder head, and a third flow passage which leads coolant through an upper part of the cylinder liner. The cooling circuit is adapted to initially leading coolant through the first flow passage before it is led in parallel through the second flow passage and the third flow passage.

Cooler arrangement for cooling at least one cylinder of a combustion engine

A method for controlling a cooling system delivering coolant to a heat exchanger () in a vehicle (). During operating conditions when a thermostat () in the cooling system is in the partly open position, the method comprises the steps of estimating a desired cooling temperature (T) of a medium in the heat exchanger (), calculating the coolant flow rate ({dot over (m)}) through a radiator () and the coolant flow rate ({dot over (m)}) through a radiator bypass line (), calculating a coolant flow rate ({dot over (m)}) and coolant temperature (t) combination atat which the medium in the heat exchanger () is cooled to a desired temperature (T), adjusting the flow regulating mechanism () such that coolant at the selected flow rate ({dot over (m)}) and temperature (t) combination is directed to the heat exchanger ().

Method for controlling a cooling system delivering coolant to heat exchanger in a vehicle

An arrangement for maintaining an operating temperature of a battery () in a vehicle (). A cooling system () with a circulating coolant. A radiator () to cool the coolant includes a heat-transfer region () where the coolant is in contact with the battery (). An AC installation with a circulating refrigerant includes a first circuit with a first evaporator () in which a refrigerant cools air in a driving cab space () of the vehicle (), and a first condenser () where the refrigerant releases thermal energy; a second circuit with a second evaporator where the refrigerant cools the coolant in the cooling system (), and a second condenser () where the refrigerant warms the coolant in the cooling system ().

Arrangement for maintaining a desired operating temperature of a battery in a vehicle

An arrangement for converting thermal energy to mechanical energy in a vehicle (). A working medium is vaporized by a heat source () in the vehicle () and is thereafter expanded through a turbine () generating mechanical energy. A control unit () receives information indicating the vehicle () is to be braked and connects the cooling system () of the vehicle to the vehicle's power train (-) to cool a refrigerant to a low temperature. The control unit () receives information that the vehicle () requires extra propulsive force and, uses the cooled refrigerant to subject the working medium in the line circuit () to a second step of cooling before it is led to the evaporator (). The condensation temperature of the working medium may thus be lowered and more mechanical energy may be generated in the turbine ().

Arrangement for converting thermal energy to mechanical energy in a vehicle

An arrangement for cooling of recirculating exhaust gases of a combustion engine () in a vehicle (). The arrangement comprises a first EGR cooler (), a driving means () adapted to driving air through the first EGR cooler () in order to cool the exhaust gases in a return line () which are subjected to a first step of cooling in the first EGR cooler (), and at least one second EGR cooler () in which the exhaust gases in the return line () are intended to undergo a second step of cooling. The arrangement comprises an air line () which extends at least from the first EGR cooler () to the exhaust pipe () at a location between the turbine () and the exhaust-treating component (), which air line () is adapted to leading warm air from the first EGR cooler () into the exhaust line () at said location.

Arrangement for cooling of recirculating exhaust gases of a combustion engine

A motor vehicle includes a cab unit () tiltable relative to a vehicle frame () between a lowered state and a raised state. A first circuit () on the vehicle frame circulates a first medium. A second circuit () in the cab unit circulates a second medium. A heat transfer arrangement () transfers heat between the media. The arrangement includes a first heat transfer unit () on the vehicle frame, and in the first circuit and the first medium flows through it, and a second heat transfer unit () on the cab unit and in the second circuit and the second medium flows through it. These heat transfer units () are in heat-transferring contact when the cab unit is in the lowered state and are separated when the cab unit is in the raised state.

Growing community of inventors

Södertälje, Sweden

Zoltan Kardos