초록 ▼

A device using oil for heating the operator\s cab of a machine driven by an air-cooled internal combustion engine, especially the operator\s cab of a vehicle. The lubricating oil of the internal combustion engine is recooled in an oil cooler and is entirely or partially branched off from the oil coo

A device using oil for heating the operator\s cab of a machine driven by an air-cooled internal combustion engine, especially the operator\s cab of a vehicle. The lubricating oil of the internal combustion engine is recooled in an oil cooler and is entirely or partially branched off from the oil cooler and is fed through valves, regulating and control devices to a heat exchanger in the operator\s cab. The device includes a manually adjustable rotary valve for opening and closing the heating system together with two oil pressure dependent bypass valves in the heating circuit and with a bypass valve for a lubricating oil filter from a compact valve block. The valve block together with a support for the lubricating oil filter is designed as a one-piece housing and is flanged to the machine housing. Connecting bores for the supply and return conduits to the heating system in the operator\s cab are arranged in the one-piece housing.

대표청구항 ▼

A system for supplying heat to the operator\s compartment of an internal combustion engine driven vehicle comprising in combination: a heat exchanger for supplying heat to the operator\s compartment, a lubricating system for the engine including a pump having the suction side connected to the engine

A system for supplying heat to the operator\s compartment of an internal combustion engine driven vehicle comprising in combination: a heat exchanger for supplying heat to the operator\s compartment, a lubricating system for the engine including a pump having the suction side connected to the engine oil sump, a supply conduit leading from the discharge side of the pump to said heat exchanger and a return conduit leading from said heat exchanger to the oil sump, a control valve common to said conduits being a manually adjustable rotary valve member to open and close conduits respectively for heat feeding and heat return with one position in which said conduits are connected to said heater exchanger and a second position in which the conduits are connected together and bypass the heat exchanger, a normally closed bypass valve interposed between said conduits on each side of said control valve and each movable into open position in response to a predetermined pressure in a respective one of said conduits, said valves being combined with a unitary valve block having support means for an oil filter and flange means for connection of the block to the engine, said block also including means for receiving said supply and return conduits, said system after a cold start avoiding withdrawal of any heat during a heating phase though simultaneously for heating in a fool proof manner gradually exchanging cold lubricating oil independent of servicing errors, said system capable of being added later to an internal combustion engine.