An evaporator header can include a header body having one or more walls that define an inner cavity configured to receive a first flow of refrigerant from a plurality of evaporator flow paths. A liquid line portion can extend through the inner cavity, can define a liquid line flow path that is fluidly separated from the inner cavity, and can be configured to receive a second flow of refrigerant. A plurality of apertures can extend through the one or more walls of the header body. The evaporator head can include a plurality of flow path connectors, and each can be configured to facilitate at least some of the first flow of refrigerant from a corresponding evaporator flow path of the plurality of evaporator flow paths, into the inner cavity via a corresponding aperture of the plurality of apertures, and across at least some of the liquid line portion.

A passive containment cooling system (PCCS) condenser, for reducing some non-condensable gases in the PCCS, includes a first and a second stage condenser that each include channels in fluid communication between an inlet and an outlet header. The inlet header of the first stage condenser is configured to receive a fluid mixture through a first inlet opening. The channels are configured to condense water from the fluid mixture flowing through the channels from the inlet header to the outlet header, respectively, of the first and second stage condenser. The PCCS condenser includes a catalyst in at least one of the outlet header of the first stage condenser or the inlet header of the second stage condenser. The catalyst catalyzes a reaction for forming water from hydrogen and oxygen in the fluid mixture. The outlet header of the second stage condenser is in fluid communication with a combined vent-and-drain line.

An evaporator includes an integral liquid suction heat exchanger that is disposed in a housing of the evaporator. The integral liquid suction heat exchanger is defined by an evaporator header of the evaporator and a portion of a liquid line that extends through an inner cavity defined by the evaporator header such that: (a) the evaporator header and the portion of the liquid line form a tube-in-tube structure, and (b) refrigerant from the evaporator coils that is channeled into the inner cavity of the evaporator header is superheated and converted to a vapor state in the evaporator header by heat from the refrigerant flowing through the liquid line. The refrigerant flowing through the liquid line is in a liquid state and has a higher temperature than the refrigerant from the evaporator coils that is in a two-phase state.

An assembly wedge for an oil cooler in a radiator tank includes a housing and a biased pin. The biased pin is disposed slideably within the housing and is configured to engage the oil cooler.

A heat-exchanger including a device for separating oil from a coolant-oil mixture and cooling the oil and cooling and/or liquefying the coolant. The heat exchanger features a first area cooling and/or liquefying the coolant, and a second area cooling the oil. The heat exchanger further features at least two manifolds. The first area of the heat exchanger features flow channels guiding the coolant, and the second area of the heat exchanger features flow channels guiding the oil. The flow channels extend between the manifolds. Each of the flow channels has a respective outside flooded by a heat-absorbing fluid.

A PCCS condenser may include a first and a second stage condenser. Each of the first and second stage condensers may include channels in fluid communication between an inlet and an outlet header. The inlet header of the first stage condenser may be configured to receive a fluid mixture through a first inlet opening. The channels may be configured to condense water from the fluid mixture flowing through the channels from the inlet header to the outlet header, respectively, of the first and second stage condenser. The PCCS condenser may include a catalyst in at least one of the outlet header of the first stage condenser or the inlet header of the second stage condenser. The catalyst may catalyze a reaction for forming water from hydrogen and oxygen in the fluid mixture. The outlet header of the second stage condenser may be in fluid communication with a combined vent-and-drain line.

The present invention relates to a heat pump system for a vehicle. The heat pump system includes a refrigerant-coolant heat exchanger for exchanging heat between refrigerant circulating through a refrigerant circulation line and coolant circulating through electronic units of the vehicle. The heat pump system can operate the heat pump mode even though outdoor air temperature is zero or lower or frosting is formed on the external heat exchanger because waste heat of the electronic units is retrieved through the refrigerant-coolant heat exchanger, thereby further enhancing heating performance and efficiency.

An oil cooler includes flat tubes layered together with a clearance, wherein cooling water flows through the clearance. Each flat tube includes a first plate, a second plate, and a fin plate held between the first plate and the second plate. The first plate is recessed to form a fin plate accommodation portion accommodating the fin plate, wherein a thin portion is formed outside of the fin plate accommodation portion in a longitudinal direction of the flat tube. An oil port is provided at the thin portion. Each flat tube includes a guide wall at a lateral periphery thereof, wherein the guide wall faces the oil port in a width direction, and projects in a layering direction. The guide wall, the thin portion, and a lateral wall of the oil port form a nozzle portion to guide cooling water in the longitudinal direction.

A heat sink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having a fractal variation therebetween, wherein the heat transfer fluid is induced to flow with respect to the plurality of fractally varying heat exchange elements such that flow-induced vortices are generated at non-corresponding locations of the plurality of fractally varying heat exchange elements, resulting in a reduced resonance as compared to a corresponding heat exchange device having a plurality of heat exchange elements that produce flow-induced vortices at corresponding locations on the plurality of heat exchange elements.

An evaporator includes an integral liquid suction heat exchanger that is disposed in a housing of the evaporator. The integral liquid suction heat exchanger is defined by an evaporator header of the evaporator and a portion of a liquid line that extends through an inner cavity defined by the evaporator header such that: (a) the evaporator header and the portion of the liquid line form a tube-in-tube structure, and (b) refrigerant from the evaporator coils that is channeled into the inner cavity of the evaporator header is superheated and converted to a vapor state in the evaporator header by heat from the refrigerant flowing through the liquid line. The refrigerant flowing through the liquid line is in a liquid state and has a higher temperature than the refrigerant from the evaporator coils that is in a two-phase state.