Oil return heating diesel oil filter

The utility model discloses an oil return heating diesel oil filter, it includes hand fuel pump assembly, strains jar, filter core and oil return heating element. Being equipped with into oil pipe onthe hand fuel pump assembly and going out oil pipe, hand fuel pump assembly jar revolves the dress together with straining. Oil return heating element sets up and is straining tank bottoms portion, and oil return heating element includes that the oil return advances oil pipe, the oil return goes out oil pipe, the 2nd O type circle, oil return support, the 3rd O type circle, spring, bimetallic strip and oil return lid. The oil return support mounting is in straining the jar, and oil return lid sub -assembly is at the top of oil return support. Spring and bimetallic strip set up in the oil return support, and bimetallic strip fixes the top at the spring. The present case is heated low temperature diesel oil through the oil return of engine, can improve firewood oil viscosity and mobility continuously and healthily,