NON-RETURN VALVE FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING SUCH A NON-RETURN VALVE

摘要

Non-return valves for gas-conducting lines in the field of internal combustion engines having a housing (6) having throughflow cross sections (2) which are controlled by leaf spring elements (18) are known but are frequently either complex to produce and install or are released having insufficiently sized cross sections. Consequently, according to the invention the leaf spring elements (18) are connected to each other, are arranged distributed over the circumference of the housing (6) and are fastened on the housing (6) by a common fastening element (24). Production is carried out according to the invention in that the housing (6) is cast in a die, wherein the stop elements (30) and the valve seat surfaces (14) are formed in a common die half of the die, the leaf spring elements (18) are punched out of a board (20) in a connected manner and subsequently bent corresponding to the valve seat surfaces (14) and, in a subsequent step, the board (20) is fastened to an upper limiting wall (12) of the housing (6) via a fastening element (24).