Oil storage tank

The utility model discloses an oil storage tank is including a jar body, press from both sides the cover, the oil inlet, the oil -out, jacket inlet, jacket outlet and breathing mouth, position below the middle part of the jar body sets up and presss from both sides the cover, the bottom of the jar body sets up the oil -out, the oil inlet is located the middle part that presss from both sides the cover, and extend to in jar body, the top of the jar body sets up breathes the mouth, it is provided with confined space to press from both sides between the cover and jar body, jacket inlet and jacketoutlet and confined space intercommunication, jacket inlet is located the downside that presss from both sides the cover, jacket outlet is located the upside that presss from both sides the cover, being provided with at the downside of the jar body and pressing from both sides the cover, can get into thermal medium and cool medium in pressing from both sides cover and jar confined space of the body, and then add nice and