公开(公告)号：US20140190189A1

公开(公告)日：2014-07-10

申请号：US14203903

申请日：2014-03-11

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： CARRIE M. KOWSKY ,  PRASAD S. KADLE ,  FREDERICK V. ODDI ,  LINDSEY L. LEITZEL

IPC: F25B30/02 ,  F25D21/06

CPC classification number: F25B30/02 ,  B60H1/00342 ,  B60H1/00899 ,  B60H2001/00928 ,  F25B25/005 ,  F25B47/022 ,  F25B2339/047 ,  F25B2400/0403 ,  F25B2400/0411 ,  F25D21/12 ,  F28D9/005 ,  F28D9/0093

Abstract: Disclosed is a unitary heat pump air conditioner (HPAC) system having a refrigerant diversion loop configured to supply sufficient heat to defrost an external heat exchanger while not materially affecting the supply of heat to the passenger compartment of a vehicle. The HPAC system includes a refrigerant loop configured to pump heat from a cold coolant loop that scavenges heat from the external heat exchanger to a hot coolant loop that supplies heat to the passenger compartment. The refrigerant loop includes a condenser in thermal communication with the hot coolant loop, evaporator in thermal communication with the cold coolant loop, and a compressor to cycle the refrigerant through the refrigerant loop. The refrigerant loop further includes means to selectively divert at least a portion of the hot compressed refrigerant exiting the compressor directly to the evaporator to heat the cold coolant loop sufficient to defrost the external heat exchanger.

Abstract translation: 公开了一种具有制冷剂分流回路的单一热泵空调（HPAC）系统，该制冷剂分流回路被配置为提供足够的热量来对外部热交换器进行除霜，同时不会对车辆的乘客室的热量产生实质影响。 HPAC系统包括制冷剂回路，该制冷剂回路构造成将来自冷却回路的热量从冷却回路中抽出，该冷却回路将热量从外部热交换器吸收到热的冷却剂回路中，所述热的冷却剂回路将热量提供给乘客室。 制冷剂回路包括与热的冷却剂回路热连通的冷凝器，与冷的冷却剂回路热连通的蒸发器和用于使制冷剂循环通过制冷剂回路的压缩机。 制冷剂回路还包括用于选择性地将离开压缩机的热压缩制冷剂的至少一部分转向蒸发器的装置，以加热足以使外部热交换器除霜的冷冷却剂回路。