摘要:
The present invention relates to a cooling system of a refrigerator, particularly of a refrigerator including a refrigeration compartment and a freezer comprising a compressor attached to at least one condenser by a segment of a refrigerant tube, wherein a first refrigerant line leaves from the condenser and returns to the compressor, and a second refrigerant line leaves from the condenser and returns to the compressor. In the preferred embodiment of the present invention, the compressor has at least two suction inlets, wherein the first refrigerant line is connected to the first inlet and the second refrigerant line is connected to the second inlet, and both inlets have each a suction valve. In the optional embodiment of the present invention, the fluid compressor comprises at least one fluid selection device directly connected to the at least one suction inlet, and the fluid selection device receives at least two supply lines, and is able to selectively switch pressurized fluid from one of them, to the suction inlet of the fluid compressor.
摘要:
A piston of the type comprising a tubular skirt portion which is closed, next to an end edge, by a head portion, the skirt portion being defined by a respective tube extension and presenting an end edge region configured to affix a head portion formed in a separate piece and having a peripheral contour internal to an axial projection of the outer contour of the skirt portion.
摘要:
The present invention refers to methods for controlling a double suction compressor for application in refrigeration systems, capable of meeting the different demands for cost, efficiency and control of temperatures by means of techniques of complexity levels and different configurations of the elements from the control loop (temperature sensors, actuators, controllers, etc.). The proposed solutions include the description of a method for controlling and adjusting the refrigeration capacities of a refrigeration system equipped with a double suction compressor, the refrigeration system comprising compartments to be refrigerated and comprising at least two evaporators (20) positioned in the compartments to be refrigerated (60,70), the double suction compressor (10) being controllable to alternate its compression capacity, the method comprising steps of (i) Continuously measuring at least a temperature coming from a temperature sensor (SET,SCT) associated with at least one of the evaporators (20) and (ii) acting in the compressor's (10) compression capacity, from the measurement of step (i).
摘要:
Abstract: The present invention relates to an arrangement integrated by at least one reed-type suction valve and at least one flexible stop which, arranged within the compression cylinder of the compressor, acts as end-of-stroke for the movement of said suction valve. Thus, flexible stop (5) comprises an angular inertial arrangement, so that it comprises a free end (51 ) spaced from the free end of suction valve (3). In addition, free end (51) of flexible stop (5) is cooperative to the movement of piston (12).
摘要:
The compressor comprises: a cylinder crankcase (1) defining a cylinder (2) which is closed by a valve plate (3) provided with at least one discharge orifice (3a) associated with a discharge valve (4) and defining, with the cylinder (2), a compression chamber (C); a cylinder cap (10) seated against the valve plate (3) and inside which is defined a discharge chamber (11). The system comprises an accelerating means (AM) mounted in the interior of the discharge chamber (11) and secured to at least one of the parts of cylinder cap (10) and valve plate (3), in order to receive the entire flow of refrigerant gas released through the discharge orifice (3a), accelerating said gas flow and producing an instantaneous reduction in the pressure gradient between the upstream and downstream sides of the discharge valve (4), in the moment the latter opens.
摘要:
The present invention pertains to restrictors (16,17) for aerostatic bearings capable of guaranteeing a constant flow, regardiess of their size and dimensional tolerance, such that the gas flow is adjusted by means of deforming their internal section. Additionally, there is also provided a pro- cess capable of guaranteeing the production of restrictors (16,17) for aero- static bearings with respect to guaranteeing the gas flow values desired.
摘要:
The compressor of the invention comprises: a block with a cylinder; a movable assembly formed by a piston reciprocating in the cylinder and coupled to an actuating means by a rod; and a resonant spring having a first and a second diametrical end portion which are attached to the movable assembly by a first fixation means (MF1) and, to the block, by a second fixation means (MF2) which is adjustably attached to the block and to said second end portion so as to affix the latter to the block in a position defined along the displacement of the resonant spring in three directions orthogonal to one another and defined by the direction of the axis of the resonant spring, by the diametrical direction of the second end portion and by the diametrical direction orthogonal to said two first directions, and also along the angular displacement of said second end portion around said three directions orthogonal to each other.
摘要:
A linear motor compressor comprises: a block (10) with a cylinder (12), within which reciprocates a piston (20) which is coupled to an actuating means (40) by a rod (30) to form a movable assembly therewith; and a resonant spring (50) having a first end portion (50a) attached to the movable assembly (20, 30, 40) and a second end portion (50b) which is according to the mounting arrangement, adjustably attached to the block (10) in a position defined along the displacement of the resonant spring (50) in three directions orthogonal to one another and defined by the direction of the axis of the resonant spring (50), by the diametrical direction of the second end portion (50b) and by the diametrical direction orthogonal to said two first directions, and also along the angular displacement of said second end portion (50b) around said three directions orthogonal to each other.