| 摘要 |
The invention relates to a piston ring device for piston reciprocating machines, mainly for internal combustion engines, comprising split ring elements arranged by way of self-tensioning in a ring groove of the piston in built-in state and with a cylindrical surface which tightly fits in the cylinder wall. The essence of the invention lies in that the said piston ring device (1) associated with the single ring groove (3) of the piston (2) is divided and consists of at least two separate split ring elements (10, 11, 23), which are in built-in state in locked connection and loaded by force directly by their tapered surfaces (12, 13, 24, 25) or in given case indirectly by an additional prestressed packing piece (shim), mainly elastic element (28), and fill out axially and tightly the ring groove (3). |
