Volvo Lastvagnar Ab

Jan Christian Holmstr&ouml;m

Arne Andersson

Sassan Etemad

The present invention relates to a method for degassing a cooling system for an internal combustion engine ( ), in which a coolant is brought to circulate on the one hand in a cooling circuit between the engine and a radiator unit ( ) and on the other between the engine and a bypass circuit, past the radiator unit. The coolant is hereby controlled, in dependence of the temperature, to flow through the cooling circuit and/or the bypass circuit, and the degassing is performed through draining off a limited coolant flow. The degassing is achieved by draining off of a limited portion of that coolant flow which is brought to flow through the bypass circuit, and is thus performed in dependence of the coolant temperature.

Method and a device for degassing a cooling system for an internal combustion engine

A circulation pump for pumping a fluid, for example for heat interchange, by way of a rotating impeller is included in a circulation system that includes a first feeder liner from a heat source to a cooling device, a return line from the cooling device to the pump and a valve for shunting the outflow from the heat source via a bypass line back to the pump. The bypass line is connected to the pump in such a way that a flow essentially from this line produces and/or increases a pre-rotation of the inflow to the impeller, which pre-rotation results in a reduction of the power required by the engine.

Growing community of inventors

Västra Frölunda, Sweden

Jan Christian Holmström

Growing community of inventors

Västra Frölunda, Sweden

Jan Christian Holmstr&ouml;m

Jan Christian Holmström