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Expansion valve for rear seat air conditioner

A technology for expansion valves and air conditioners, applied to compressors with multiple evaporators, lift valves, valve details, etc., can solve the problem of compressor 12 operating noise, adverse effects on compressor 12 durability, and reduced oil circulation rate And other issues

Active Publication Date: 2007-05-09
HANON SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as shown in FIG. 3, the oil circulation rate starts to decrease from the time when the rear seat air conditioner 30 is stopped, thereby adversely affecting the durability of the compressor 12. For example, as the operation time of the compressor 12 progresses, the compressor 12 Viscous due to lack of lubrication, causing compressor 12 to produce severe operating noise

Method used

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  • Expansion valve for rear seat air conditioner
  • Expansion valve for rear seat air conditioner
  • Expansion valve for rear seat air conditioner

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Embodiment Construction

[0028] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The terms and expressions used in the specification and claims should be interpreted as meanings corresponding to the technical ideas of the present invention based on the inventor's ability to correctly define the concept of words and thus explain the inventor's invention in the best possible way. and concept.

[0029] FIG. 4 shows an expansion valve of a rear seat air conditioner for a motor vehicle according to the invention.

[0030] The expansion valve 100 for a rear seat air conditioner according to the present invention includes a valve body 110 , a low pressure refrigerant passage 120 , a high pressure refrigerant passage 130 , a temperature sensing case 180 , a pressure transmission rod 170 and a ball valve 160 .

[0031] A low-pressure refrigerant passage 120 is installed horizontally on the upper end portion of the valve body 110 to con...

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Abstract

The present invention relates to an expansion valve for a rear seat air conditioner of an automotive vehicle, which can circulate a flow of refrigerant stagnated between a compressor and the rear seat air conditioner through a bleeding channel of the expansion valve when only a front seat air conditioner is operated stopping the operation of the rear seat air conditioner, thereby supplying oil contained in refrigerant between the compressor and the rear seat air conditioner to the compressor.

Description

technical field [0001] The present invention relates to an expansion valve for a rear seat air conditioner for a motor vehicle, and more particularly, to an expansion valve for a rear seat air conditioner for a motor vehicle in which only the front seat air conditioner operates and the rear seat air conditioner is stopped In operation, the expansion valve circulates the stagnant refrigerant flow between the compressor and the rear seat air conditioner through the expansion valve's relief passage, thereby displacing the oil contained in the refrigerant between the compressor and the rear seat air conditioner. supplied to the compressor. Background technique [0002] Generally, rear air conditioners for vehicles are applied to large-capacity motor vehicles such as vans, RVs (recreational vehicles), or luxury cars, which are too large to be cooled satisfactorily with only front air conditioners Or heat the interior of your vehicle. The rear air conditioner is installed in a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/14F16K31/64F25B41/06
CPCF25B2341/0683F25B5/02B60H1/00207F25B41/062B60H1/00485F25B31/004F25B41/335F16K7/17B60H2001/00242F25B41/31
Inventor 李政宰韩仲万郑在径
Owner HANON SYST