Suction and discharge valve arrangement for small hermetic compressor

Described arrangement for a small hermetic compressor of the type presenting a compression cylinder (1), whereby the suction and discharge arrangement comprises a valve plate (10), and which is supplied by the suction pipe (5) which is disposed adjacent to the valve plate and which in use is substantially orthogonal to the cylinder axis. The valve plate (10) is provided with a discharge orifice (11), which in use is centralized in relation to an axial projection (20) of the internal contour of the compression cylinder (1) and with at least one suction orifice (12), which is internal to said axial projection (20) of the internal contour of the compression cylinder (1) and external to the contour of the discharge orifice (11). Occupying an annular sector concentric to at least one of the internal contours of the compression cylinder (1) and discharge orifice (11), in order maintain with said discharge orifice (11) a certain minimum spacing and defining at least part of a suction passage (P). The suction passage having an gas outlet end (12b) opened to the inside of the compression cylinder (1) and an opposite gas inlet end (12a) opened and connected to the suction pipe (5), by means of a transition portion (T), which is incorporated to one of the parts defined by the suction passage (P) and suction pipe (5). The transition portion is at least partially bent in its internal profile in order to change the direction of gas flow, which allows the whole cross sectional area of the suction orifice (12) to be fully used gas flow passage, and wherein the gas inlet end (12a) has a cross section larger than that of the gas outlet end (12b).