Long and thin oil duct psammitolite structure that crouches and water technology cylinder body

The utility model relates to a casting process field, concretely relates to long and thin oil duct psammitolite structure that crouches and water technology cylinder body, including oil duct psammitolite and crankcase psammitolite, it has a both sides positioning channel section to open at the middle section position of oil duct psammitolite, and each division of both sides position that corresponds at the both sides positioning channel section of crankcase psammitolite and oil duct psammitolite has an unilateral positioning channel section, is provided with to prop along with the core between oil duct psammitolite and crankcase psammitolite, follows the core and props the card and put in both sides positioning channel section and two unilateral positioning channel section. The utility model has the advantages of avoided the core sand that uses dear high strength, low -expansion coefficient, guaranteed along with the core prop lay, fix a position the accuracy and along with the core prop with long and thin oi