Supercharge Your Innovation With Domain-Expert AI Agents!

Refrigeration cycle device

A refrigeration cycle and refrigerant technology, used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as excessive oil and reduced refrigeration cycle efficiency

Active Publication Date: 2017-08-29
DENSO CORP
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, when the refrigerant circuit in the second mode circulates the refrigerant, the amount of oil sealed in is too much oil when the refrigerant circuit in the first mode circulates the refrigerant, which may result in failure of the refrigeration cycle. Disadvantages such as reduced efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Refrigeration cycle device
  • Refrigeration cycle device
  • Refrigeration cycle device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0025] figure 1 It is an overall configuration diagram of the vehicle air conditioner 8 according to the present embodiment. This vehicle air conditioner 8 is mounted on a hybrid vehicle that obtains driving force for vehicle running from an internal combustion engine (engine) and a running electric motor. Such as figure 1 As shown, the vehicle air conditioner 8 has a vapor compression refrigeration cycle device 10 . The refrigeration cycle device 10 has a function of heating or cooling the blown air blown into the vehicle interior as a space to be air-conditioned in the vehicle air conditioner 8 .

[0026] The refrigeration cycle device 10 is configured as a refrigerant circuit in a cooling mode (first mode) that cools the blown air to cool the vehicle interior and a heating mode that heats the blown air to heat the vehicle interior. (second mode) to switch between the refrigerant circuits.

[0027] In the refrigeration cycle device 10 , an HFC-based refrigerant (specific...

no. 2 approach

[0094] Next, a second embodiment of the present invention will be described. In this embodiment, the point which differs from the said 1st Embodiment is mainly demonstrated. In addition, explanations are omitted or simplified for parts that are the same as or equivalent to those in the foregoing embodiments. The same applies to the third and subsequent embodiments described later.

[0095] Figure 4 It is an overall configuration diagram of the vehicle air conditioner 8 of the present embodiment, which is the same as that of the first embodiment. figure 1 Quite a graph. Such as Figure 4 As shown, in this embodiment, a water-cooled capacitor 60 is provided instead of the condenser 12 of the first embodiment, and a heater core 62 is provided in the hot air passage 31 a of the indoor air conditioning unit 30 . Furthermore, a first decompression unit 28 is provided instead of the first expansion valve 28 of the first embodiment. In these respects, the present embodiment dif...

no. 3 approach

[0106] Next, a third embodiment of the present invention will be described. In this embodiment, the point which differs from the said 1st Embodiment is mainly demonstrated.

[0107] Figure 5 It is an overall configuration diagram of the vehicle air conditioner 8 of the present embodiment, which is the same as that of the first embodiment. figure 1 Quite a graph. Such as Figure 5 As shown, in this embodiment, the second expansion valve 29 of the first embodiment is replaced by the first temperature type expansion valve 74 and the first on-off valve 75, the first expansion valve 28 of the first embodiment is the same as that of the second embodiment The method is similarly replaced with the first decompression unit 28 . In addition, the refrigeration cycle device 10 has a second evaporator 76 , a second temperature expansion valve 78 , and a second on-off valve 79 . In these respects, the present embodiment differs from the first embodiment. In addition, a vehicle equipp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A refrigeration cycle device that can selectively configure either a first refrigerant circuit for cooling, which causes a refrigerant to flow out through a liquid-phase refrigerant outlet (17c) of a vapor-liquid separator (17), or a second refrigerant circuit for heating, which causes a refrigerant to flow out through a vapor-phase refrigerant outlet (17b) of the vapor-liquid separator (17), wherein an oil separator (24) is provided in the refrigerant path from a radiator (12) to a first expansion valve (28). Thus, if the first refrigerant circuit is configured in the refrigeration cycle device (10), the refrigerant passing through the oil separator (24) is completely or mostly brought into the vapor phase, and the oil can be easily separated from the refrigerant. Furthermore, if the refrigerant is circulated in the first refrigerant circuit, the oil can also be stored in a place other than the vapor-liquid separator (17).

Description

[0001] This application is based on Japanese Patent Application No. 2014-263151 filed on December 25, 2014, the disclosure of which is incorporated herein by reference. technical field [0002] The present invention relates to a refrigeration cycle device for circulating a refrigerant. Background technique [0003] Conventionally, as such a refrigeration cycle device, there is a device described in Patent Document 1, for example. The refrigeration cycle device described in this Patent Document 1 includes: a gas-liquid separator for separating a refrigerant into a gas-phase refrigerant and a liquid-phase refrigerant; and a refrigerant circuit for switching a refrigerant circuit through which the refrigerant circulates to a first mode. and a switching device of one of the refrigerant circuits of the second mode. Specifically, it is configured such that the gas-liquid separator can separate the refrigerant flowing out of the outdoor heat exchanger into gas-phase refrigerant an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F25B43/02F25B6/04F25B39/00F25B43/00
CPCF25B43/02B60H1/00921B60H1/3227F25B5/00F25B40/02F25B49/02F25B2339/047F25B2400/0403F25B2400/0409F25B2600/2501F25B2600/2507F25B6/04F25B41/22F25B41/39F25B2339/044F25B2339/0444F25B39/028F25B2309/061F25B2400/02
Inventor 川久保昌章
Owner DENSO CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com