Abstract: A refrigerant compressor includes a front housing, a cylinder block, a rear housing, and a valve plate positioned between the cylinder block and the rear housing, in which the valve plate has a suction hole formed therethrough. The compressor also includes a suction chamber and a suction valve reed formed on the valve plate. The compressor further includes a limiting recess formed within an end of the cylinder block adapted to receive the suction valve reed. The limiting recess includes an arced segment intersecting a center axis of the suction valve reed. Moreover, the portion of the arced segment which intersects the center axis of the suction valve reed has a corresponding tangential line at the point of intersection which forms an oblique angle relative to the center axis of the suction valve reed.

Abstract: A refrigerant compressor includes a front housing, a cylinder block, a rear housing, and a valve plate positioned between the cylinder block and the rear housing, in which the valve plate has a suction hole formed therethrough. The compressor also includes a plurality of pistons each of which are slidably positioned within a corresponding cylinder bore, and a drive mechanism adapted to reciprocate each of the pistons within their corresponding cylinder bore. The compressor further includes a suction chamber formed between the rear housing and the valve plate, and a suction valve reed formed on the valve plate which regulates the flow of a fluid through the suction hole. The compressor also includes a limiting recess formed within an end of the cylinder block adapted to receive the suction valve reed. The limiting recess includes at least one arced segment intersecting a center axis of the suction valve reed.