Suction valve for a refrigeration compressor and its mounting process
AssigneeWhirlpool Corporation
InventorsRoque Tadeu Miranda, Guilherme Alan Kruger
Life of this patent
Estimating the term…
Abstract
The compressor comprises a valve plate, to be affixed to a compressor block, and a suction valve (V) formed by a spacer body, having a median opening and a flexible vane, which has a fixing end portion provided with a contour, symmetrical or asymmetrical, in relation to a longitudinal axis (X) of the flexible vane and which presents peripheral edge portions to be seated against respective inner edge portions of the median opening for restricting coplanar, linear and angular displacements of the flexible vane in relation to the spacer body upon seating the flexible vane against the valve plate, in the interior of the median opening.
Claims24
A suction valve for a refrigeration compressor of the type which comprises:
- a compressor block;
- a valve plate attached to the compressor block and provided with at least one suction orifice;
- and a suction valve (V) formed, with the same nominal thickness, by a spacer body, provided with a median opening having a continuous inner edge an to be seated on the valve plate, and by a flexible vane, having a peripheral edge with a contour corresponding to the inner edge of the median opening and said flexible vane being formed, along a longitudinal axis (X), by a fixing end portion, to be seated and secured to the valve plate, in the interior of the median opening, a bending median portion and a sealing end portion, operatively associated with the suction orifice, the suction valve (V) being characterized in that the fixing end portion is provided with peripheral edge portions to be seated against respective inner edge portions of the median opening, in order to restrict coplanar displacement of the fixing end portion in relation to the spacer body, limiting linear and angular displacements, in any direction and sense, of the flexible vane in relation to the spacer body and in the plane of the latter, upon seating the flexible vane against the valve plate, in the interior of said median opening.
A process for mounting a suction valve in a refrigeration compressor of the type which comprises:
- a compressor block;
- a valve plate attached to the compressor block and provided with at least one suction orifice;
- and a suction valve (V) formed, with the same nominal thickness, by a spacer body, provided with a median opening having a continuous inner edge and to be seated on the valve plate, and by a flexible vane, having a peripheral edge with a contour corresponding to the inner edge of the median opening, said flexible vane being formed, along a longitudinal axis (X), by a fixing end portion, to be seated and secured to the valve plate, in the interior of the median opening, a bending median portion and a sealing end portion, operatively associated with the suction orifice, the process being characterized in that it comprises the steps of:
- shaping the spacer body, with its median opening;
- stamping the flexible vane having the portions of the edge of its fixing end portion configured to be seated against confronting portions of the inner edge of the median opening of the spacer body, so as to restrict coplanar displacements of the fixing end portion in relation to the spacer body, limiting linear and angular displacements, in any directions and sense, of the flexible vane in relation to the spacer body and in the plane of the latter;
- seating and maintaining the spacer body seated against a confronting face of the valve plate in a predetermined position;
- seating and maintaining seated the flexible vane against the confronting face of the valve plate, in the interior of the median opening, in the spacer body;
- and
- affixing the valve plate, already carrying the suction valve (V), against the compressor block.
Dependencies are inferred from the claim text.