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.

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.

A thermal management system for controlling cooling of an engine system during shutdown, the engine system includes an engine configured to provide power to a working machine, wherein the thermal management system includes a controller which is configured to receive a signal indicative of an engine shutdown command. The controller is further configured to derive, infer or receive a temperature parameter of the engine system and to determine whether the temperature parameter of the engine system is above a first predetermined threshold; and wherein the controller is configured to signal the progressive reduction of a speed of the engine prior to issuing a signal to shutdown the engine in the event that the first predetermined threshold is exceeded when the engine shutdown command is received, thereby cooling the engine system prior to engine shutdown.

A thermal management system for controlling cooling of an engine system during shutdown, the engine system includes an engine configured to provide power to a working machine, wherein the thermal management system includes a controller which is configured to receive a signal indicative of an engine shutdown command. The controller is further configured to derive, infer or receive a temperature parameter of the engine system and to determine whether the temperature parameter of the engine system is above a first predetermined threshold; and wherein the controller is configured to signal the progressive reduction of a speed of the engine prior to issuing a signal to shutdown the engine in the event that the first predetermined threshold is exceeded when the engine shutdown command is received, thereby cooling the engine system prior to engine shutdown.

A reductant delivery unit (RDU) for a selective catalytic reduction system, including a housing; a fluid inlet disposed at an upper portion of the housing; a fluid return outlet; a fluid nozzle outlet disposed at a lower portion of the housing; an injector disposed within the housing and configured to receive fluid from the fluid inlet and selectively discharge the fluid from the fluid nozzle outlet; and at least one fluid passageway disposed within or around the housing. The fluid passageway provides fluid communication along a first fluid path between the fluid inlet and the fluid nozzle outlet and along a second fluid path between the fluid inlet and the fluid return outlet so that the same fluid discharged by the injector is also used as a coolant for the RDU.

A reductant delivery unit (RDU) for a selective catalytic reduction system, including a housing; a fluid inlet disposed at an upper portion of the housing; a fluid return outlet; a fluid nozzle outlet disposed at a lower portion of the housing; an injector disposed within the housing and configured to receive fluid from the fluid inlet and selectively discharge the fluid from the fluid nozzle outlet; and at least one fluid passageway disposed within or around the housing. The fluid passageway provides fluid communication along a first fluid path between the fluid inlet and the fluid nozzle outlet and along a second fluid path between the fluid inlet and the fluid return outlet so that the same fluid discharged by the injector is also used as a coolant for the RDU.

A fuel injector assembly is disclosed. The fuel injector assembly may include a case that encloses a solenoid assembly. The fuel injector assembly may include one or more inlet passages, positioned on the case, to permit fluid to enter the case to cool the solenoid assembly. The fuel injector assembly may include one or more outlet passages, positioned on the case, to permit fluid to exit the case. The fuel injector assembly may include an annular protrusion positioned around a circumference of the case between the one or more inlet passages and the one or more outlet passages.

A fuel injector assembly is disclosed. The fuel injector assembly may include a case that encloses a solenoid assembly. The fuel injector assembly may include one or more inlet passages, positioned on the case, to permit fluid to enter the case to cool the solenoid assembly. The fuel injector assembly may include one or more outlet passages, positioned on the case, to permit fluid to exit the case. The fuel injector assembly may include an annular protrusion positioned around a circumference of the case between the one or more inlet passages and the one or more outlet passages.

A flow guiding device for an internal combustion engine includes a main body substantially in the shape of a surface shell of a truncated cone and/or a cylinder and a plurality of orifices in the main body. The main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, and wherein the orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.

A flow guiding device for an internal combustion engine includes a main body substantially in the shape of a surface shell of a truncated cone and/or a cylinder and a plurality of orifices in the main body. The main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, and wherein the orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.