Patent Application
20170074557
The present invention describes a valve mechanism for compressors. The present invention lies in the field of mechanical engineering, more specifically in the field of fluid and cooling mechanics.
Among the various technological resources that are currently used, the compression refrigeration systems stand out for their wide versatility that attends the needs current days. Whether in a simple refrigerator, air conditioning, or even in large refrigeration plants, cooling systems compression enabled large steps in the evolution of the various technical fields.
Current compressors have small size, low power consumption, besides other large implementations aimed at lower costs and higher productivity.
One of the most critical points in the operation of a compressor is the time of its initial starting when the machine is turned on for the first time or after a long time without working, both from the high mechanical stress point of view, that from the point of view of large engine power request that it moves. Currently, most domestic compressors fitted refrigerators have a capacitor that permits greater availability of energy for the electric motor at the time of starting the cooling system. Largely, this need for increased power at the time of departure is due to the pressure differential between the discharge volume and the cavity of the compressor.
In addition to the inertia of the mechanisms, the aforementioned pressure differential makes the starting of compressors reciprocal, the moment of greatest energy consumption, and request of electromechanical components involved.
Solving the differential pressure problem between the discharge volume and the cavity of the compressor, becomes, therefore, a notorious goal, that being solved involves lighter compressors with fewer devices, more robust and less costly operation from an energy point of view.
In search of prior art on scientific and patent literature, were not found documents suggesting or anticipating the teachings of the present invention, so that the solution proposed here possesses novelty and inventive activity in relation to the prior art.
Thus, the present invention aims to solve the listed problems in the art, from a valve system able to equalize the pressure between a pressurized medium and a first pressurized medium so as to reduce the starting load of the middle pressurizer.
In a first aspect, the present invention provides an equalization system of compressor pressure, comprising:
wherein the primary valve mechanism (3) is comprised upstream of the valve mechanism (2) and the secondary valve mechanism (2) is downstream of the primary valve mechanism (3) and in fluid communication with the line compressor output.
In a second aspect, the present invention provides a pressure equalization method for compressors, where the primary valve mechanism (3) promotes pressure equalization between the discharge volume (8) and inlet volume (9) to a time before the start of the compressor.
In a third aspect, the present invention provides the use of pressure equalization system for compressors, where the system is as defined in the present invention and the compressor being a hermetic compressor for refrigeration systems.
Furthermore, the inventive concept common to all the claimed protection contexts refers to a device capable of equalizing the pressure between compressor chambers in order to avoid the need for high loads at the time of starting of said compressors.
These and other objects of the invention will be immediately appreciated by those versed in the art and by companies with interests in the sector, and will be described in sufficient detail to reproduce in the following description.
In order to better define and clarify the content of this patent application, these figures are presented:
It is a first object of the present invention, to provide a pressure equalization system compressor, comprising:
wherein the primary valve mechanism (3) is comprised upstream of the valve mechanism (2) and the secondary valve mechanism (2) is downstream of the primary valve mechanism (3) and in fluid communication with the line compressor output.
In one embodiment, the compressor proposed by the present invention is comprised within a hermetic volume (1) enclosed in a hermetic case (10).
In one embodiment, the system proposed by the present invention is applied in cooling systems.
It is a second object of the present invention to provide a pressure equalization method in compressors where the primary valve mechanism (3) promotes pressure equalization between the discharge volume (8) and inlet volume (9) in a time before the start of the compressor.
In one embodiment, said pressure equalization promotion is initiated by receiving a starting signal from compressor.
It is a third and last object of the present invention to provide the use of pressure equalization system for compressors, where the system is as defined in the present invention and the compressor is a hermetic compressor for refrigeration systems.
The examples shown herein are intended to illustrate only one of many ways of performing the invention, but without limiting the scope thereof.
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Those skilled in the art will value the knowledge presented herein, and may reproduce the invention shown in the embodiments, and in further variations which fall within the scope of the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2015 022515 6 | Sep 2015 | BR | national |
