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Hermetic compressor

A hermetic compressor, compressor technology, applied in liquid variable capacity machinery, mechanical equipment, machine/engine, etc., can solve problems such as damage to pump performance

Inactive Publication Date: 2012-05-30
WHIRPOOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, an inlet orifice with a very large diameter will impair the performance of the pump at low rotational speeds

Method used

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  • Hermetic compressor
  • Hermetic compressor
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Embodiment Construction

[0023] The invention will be described in detail below on the basis of examples of implementation given in the accompanying drawings. While the detailed description uses an alternative compressor for refrigeration as an example, it should be understood that the principles of the present invention may be applied to any type, size or configuration of hermetic compressor.

[0024] figure 1 and 2 Compressors are shown including pumping schemes already existing in the prior art.

[0025] exist figure 1 In the solution shown in , the oil pump (1) is inserted in the rotor (2) of the engine. The pump (1) has an end (3) submerged in oil (4) arranged in a reservoir of the housing (5) and the other end (6) inserted in the rotor (2). This configuration creates a free path for the oil, but limits the area available to connect the shaft (7) and the pump. In fact, as shown in this figure, the shaft (7) continues to the upper end (6) of the pump.

[0026] exist figure 2 In the solutio...

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Abstract

The present invention relates to a hermetic compressor and, more specifically, to a hermetic compressor comprising a centrifugal pump (1) to provide oil for the moving parts of the compressor. In the compressor of the present invention, the vertical shaft (7) extends axially from the rotor to form a free end (8) in the lower portion thereof, and said free end (8) is sized to be received in a corresponding end (12) of the centrifugal pump (1).

Description

technical field [0001] The present invention relates to a hermetic compressor, and more particularly to a hermetic compressor including a centrifugal pump for supplying oil to the moving parts of the compressor. Background technique [0002] A compressor has the function of raising the pressure of a volume of fluid to the pressure required to perform a determined job. The refrigeration industry typically uses a hermetic compressor, which typically includes: a hermetic casing that defines an oil reservoir within it; and an oil pump arrangement that directs oil from the reservoir to the to the moving parts of the compressor. [0003] The refrigeration industry is concerned about the performance of refrigeration compressors. In fact, several studies have been carried out to improve this performance, with the latest generation of compressors utilizing variable speed drives. When changing the operating speed of the compressor, the cooling capacity can be set to the demand of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/02
CPCF04B39/0253F04B39/02F04B53/18
Inventor D·E·B·利耶M·克吕格尔R·A·圣地亚哥
Owner WHIRPOOL SA