Engine waterway structure

The utility model discloses an engine waterway structure, temperature saver (6) set up in engine delivery port (1), temperature saver (6) be the double valve temperature saver, it includes temperaturesaver main valve door and temperature saver auxiliary valve (7), temperature saver (6) main valve door set up in engine delivery port (1), temperature saver auxiliary valve (7) set up at engine waterinlet pipe entry (3), cylinder body cylinder cap return water mouth (5) and booster return water entry set up between double valve, and oil cooler return water mouth (4) sets up in temperature saverauxiliary valve (7) the outside. Adopting above -mentioned technical scheme, optimizing and segmented the return flow line of engine cooling liquid, coolant liquid of respectively shunting the engineflows back alone, has guaranteed the warm -up of engine and the cooling needs of each spare part of engine, improves cooling system's cooling efficiency. 本实用新型公开了种发动机水路通道结构，所述的节温器(6)设置在发动机出水口(1)；所述的节温器(6)为双阀门节温器，其包括节温器主阀门和节温器副阀门