Unlock instant, AI-driven research and patent intelligence for your innovation.

Air conditioning device for a motor vehicle and method for operating same

A technology for air-conditioning equipment and motor vehicles, applied to mechanical equipment, air handling equipment, machines/engines, etc., to achieve high cooling power

Pending Publication Date: 2019-03-01
VOLKSWAGEN AG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Furthermore, this object is solved by an operating method according to claim 8 , namely by a method for operating such an air-conditioning system, wherein the first expansion mechanism is controlled such that in normal operation with the branch line expansion mechanism closed An amount of coolant sufficient to cool the heat source flows from the first evaporator to the coupling heat exchanger in a vaporizable state, and it is confirmed that the heat source flows into the coupling heat exchanger in a vaporizable state without being sufficiently cooled The amount of coolant in the tank is increased by opening the branch line expansion mechanism

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
  • Air conditioning device for a motor vehicle and method for operating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 An air conditioning system according to the invention is shown in a very schematic illustration with a coolant circuit 10 and a refrigerant circuit 70 which is only shown incompletely. The coolant circuit 70 is preferably used to regulate the temperature of electrical and electronic components (not shown), such as power electronics and / or a traction battery.

[0026] An important component of the coolant circuit 10 is its main coolant circuit 12, which generally has a compressor 20, a condenser / gas cooler 30 downstream of it in the direction of coolant flow, a first evaporator 41 and a pre- Its first expansion mechanism 51. The first evaporator 41 is preferably designed as an air / coolant heat exchanger through which an air flow can pass, which can be conducted in a manner not shown into the passenger compartment, likewise not shown. The first evaporator 41 is therefore primarily used for conditioning and / or dehumidifying the air in the passenger compartment m...

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

The invention relates to an air conditioning device for a motor vehicle, comprising a refrigerant circuit (10) having a refrigerant main circuit (12), a compressor (20), a condenser / gas cooler (30),a first expansion element (51) and a as a first evaporator (41) operable air / refrigerant heat exchanger, which are arranged in the flow direction of the refrigerant in this order in the refrigerant main circuit (12), and a coolant circuit (70) with a coolant pump and a thermally coupled to a heat source Receiving heat exchanger, wherein the refrigerant circuit (10) and the coolant circuit (70) bymeans of a designed as a coolant / refrigerant heat exchanger coupling heat exchanger (60), the refrigerant side in the flow direction of the refrigerant downstream of the first evaporator (41) and alsooperated as an evaporator is thermally coupled with each other. The invention is characterized in that a branch line (14), which branches off from the refrigerant main circuit upstream of the first expansion element (51) in the flow direction of the refrigerant, returns between the first evaporator (41) and the coupling heat exchanger (60) the refrigerant main circuit (12) opens and has a controllable branch line expansion element (141).

Description

technical field [0001] The invention relates to an air conditioning unit for a motor vehicle comprising: [0002] - a coolant circuit with a coolant main circuit having arranged in sequence in the coolant main circuit in the direction of flow of the coolant: a compressor, a condenser / gas cooler, a first expansion mechanism and the Air / coolant heat exchanger for first evaporator operation, [0003] and the air conditioning equipment includes [0004] - a refrigerant circuit with a refrigerant pump and an absorption heat exchanger thermally coupled to a heat source, [0005] In this case, the coolant circuit and the refrigerant circuit are thermally coupled to each other by means of a coupling heat exchanger designed as a refrigerant / coolant heat exchanger, which is arranged behind the first evaporator on the coolant side in the flow direction of the coolant evaporator and can also be operated as an evaporator. [0006] The invention also relates to a method for operating su...

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
IPC IPC(8): B60H1/00B60H1/32F25B25/00F25B5/04F25B5/02F01P3/20F01P9/06F01P3/12F01P7/00
CPCB60H1/00278B60H1/3205B60H1/3227B60H2001/3286F01P3/12F01P3/20F01P7/00F01P9/06F25B5/02F25B5/04F25B25/00B60H1/323B60H2001/00307B60H1/3228B60H1/32281
Inventor M.兰格A.舍克
Owner VOLKSWAGEN AG