METHOD OF SECURING HEAD AND CYLINDER OF PISTON ENGINE Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: circular bore 4 made on inner surface of cylinder 1 receives split ring 3. Head is located on one side of ring 3 for engagement with its plane and stop 5 made for example in form of washer is located on other side. Then stop and head are pulled by fasteners 9. Gas loads are taken up at such attachment by split ring 3 which works in shear which makes it possible to reduce mass of head and cylinder and mass of the attachment due to absence of heavily loaded threaded joint. EFFECT: enhanced reliability.