Auslassventilvorrichtung eines Kältemittelverdichters

摘要

A refrigerant compressor includes a compressor housing divided at least partially by a valve plate into a first chamber comprising a compression chamber, and a second chamber comprising a discharge chamber (5). A fluid conduit links the compression chamber (2) with the discharge chamber (5). An elastic valve member (21) opens and closes the end of the conduit. The valve member (21) has a predetermined spring constant such that the end opening of the conduit remains blocked until the pressure in the compression chamber (5) reaches a predetermined value. An integral gasket (100) is positioned between the valve plate (3) and the front and rear housings (4) and comprises an outermost, an intermediate and an innermost annular portion chamber. Outer ribs are connected between the outermost and the intermediate annular portion, and inner ribs are connected between the intermediate and the innermost annular portions. The inner ribs are aligned with the discharge valve (21) and have a portion bent outwardly with respect to the valve plate (3) for limiting the magnitude of the opening of the valve member. The front and rear housings (4) include radial projections (44) extending from an inner surface thereof. The projections (44) include an end surface which supports the bent portion of the respective ribs.