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dismantling of hermetically sealed compressor

The small hermetic compressors in ordinary household refrigerators or freezers usually have a permanently welded circular steel shell, which can seal the working gas inside the system. One of the most popular types of the hermetically sealed compressors are the reciprocating compressors. 18.000 no motor for air cooler qty. 11 illustrates a chip including features that facilitate the opening of the hermetic seal according to one embodiment. In case of R-7 17 compressors water cooling is most common R-22 compressors are either air or water cooled. If any parts of the compressor like the cylinder, piston etc, gets damaged, again the whole hermetically sealed compressor has to be replaced and then one has to do fresh gas charging. Hermetic Compressors. Blog Press Information. 6.000 set hermatic sealed compressor qty. 2013/0112650 referenced above discussed many materials that may be suitable choices in this latter regard. In all the household refrigerators, deep freezers, window air conditioners, split air conditioners, most of the packaged air conditioners, the hermetically sealed reciprocating compressor is used. In the case shown, the chamber takes the form of a simple, roughly oval shape, occupying most of the surface of the chip, with a roughly rectangular cross section, but numerous different shapes and sizes may be envisaged. Such condenser units are called as hermetic condenser units. A hermetically sealed container or space is so tightly closed that no air can leave or enter it…. Pressing button 980 with the chip in place as shown causes tools 970 to engage with undercuts 910, creating stress at multiple positions simultaneously around the perimeter of the sealed chip, resulting in the unbonding of the seal or seals. In some embodiments, the tool may be moved relative to the chip to traverse a portion of or the entire perimeter of the seal around the chamber or chip. Such features are clearly desirable for chambers designed to hold fluids, and also if the material to be encapsulated includes biological material such as living cell cultures. In one embodiment, the chip feature facilitating bond disassembly is a chamfer, extending around the entire perimeter of the chip. 8.000 no endless transmission vbelt spc4000 qty. All Rights Reserved. In such an example, it may be desirable to subsequently unbond a seal between the second chamber and another channel of the chip, and so on. The breaking of the seal results in the complete separation of the first and second elements. Horse Power: 5 HP. In some embodiments, where the chip is a flow cell, step 104 may be omitted and step 114 carried out instead, so that the chamber formed by the seal does not initially contain the material of interest, but the material is introduced at a later time, making use of at least one inlet via connected to the chamber. The chips may be microfluidic chips or flow cells. 2013/0112650, which is incorporated herein in its entirety by reference. There is no route for gases to leak, such as around motor shaft seals. When the motor winding of the hermetically sealed compressor burns, the whole compressor has to be replaced. Embodiments described herein provide various benefits. Horse Power: 5 HP. Frequency: 50/60Hz. The release technique comprises introducing a tool to the vicinity of the bond interface without any contact occurring between the tool and any material within the chamber, and the breaking of the hermetic seal results in the complete separation of the first and second elements. In such cases, an individual chamber or reservoir can be opened independently of the opening of any other chamber on the chip, and independently of the bond sealing the two external substrates together. Karam, Raymond Miller (Santa Barbara, CA, US). The sealed chip is coupled to a fixture 620 such that a neutral axis X is located at a predetermined distance from the “bond line” characterizing seal 610. This makes the whole compressor and the motor a single compact and portable unit that can be handled easily. Let’s consider again the example of refrigerators. FIG. FIG. The radiant energy may be applied in a diffuse or localized, directed manner. The lubrication system of the hermetically sealed compressor is inherent and no external lubrication is required, unless the fresh gas charging is done. Hermetic Sealed Unit: 1. 1 through 15. Such twisting motion causes shear stresses at seal 710. FIG. FIG. There are several methods for removing oil from a semi-hermetic reciprocating compressor. In some embodiments, such an apparatus includes a fixture in which the chip is held, and an actuation mechanism which when actuated will position one or more tools at or in the vicinity of the bond interface and move them in a controlled path to break through the seal. The entire unit is sealed… FIG. In hermetically sealed compressor, the compressor and the motor are enclosed in the welded steel casing and the two are connected by a common shaft. Seal 175 can be broken in a controlled fashion when required, allowing fluid 180 to be released from the chamber, possibly by capillary action or bulk pressure-driven flow, while seal 165 may remain intact, protecting the contents of chip 150 from the external environment. 8.000 no submersible mini pump for air c oole qty. & Terms of Use. Cooling Method: Air Cooled. In other embodiments, a combination of stage movement and laser scanning can be employed. Copyright © 2020 Bright Hub PM. 7 illustrates a method of breaking open a hermetic seal around an on-chip chamber according to another embodiment. Air Quality Standard: Class I. Voltage: 220/230V. According to one embodiment, seal 136 between secondary chamber 132 and channel 134 may be broken by increasing the temperature of fluid encapsulated in secondary chamber 132, Thermal expansion then increases the fluid pressure and forces the fluid to break through seal 136 and enter channel 134. FIG. In some cases, hermetic seal 410 may be the only seal present.

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