Visteon Global Technolgoies, Inc.

Chao A Zhang

Henry Mehraban

William Melnyk

John Joseph Meyer

Evangelos S Papoulis

Ramez S Abdulnour

Shyr-Ing Hu

Haiping Hong

Teodor Urdea

Richard G Gibbons, Jr

Zhaoli G Yang

A high performance louvered fin for a heat exchanger is disclosed, wherein adjacent entrance louvers have increased widths and adjacent exit louvers have decreased widths in order to optimize thermal efficiency.

High performance louvered fin for heat exchanger

A heat exchanger fin includes a plurality of vortex generator louvers spaced apart, such that there is a gap between adjacent louvers through which a fluid, such as air, flows. Each vortex generator louver is provided with one or more mini-vortex generators along an outer edge of the louver. The mini-vortex generators trigger vortices that flow across the vortex generator louvers.

Heat exchanger louver fin

A heat pump and air conditioning system for a vehicle that has at least one coolant loop selectively connecting an engine cooling system with a heater core, a first coolant/refrigerant heat exchanger, and/or a second coolant/refrigerant heat exchanger, in order to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that includes a first expansion device between a condenser and evaporator, and a second expansion device between the first coolant/refrigerant heat exchanger and the second coolant/refrigerant heat exchanger. The refrigerant loop provides for cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the at least one coolant loop, to provide heat to the vehicle passenger compartment.

Heat pump and air conditioning system for a vehicle

An accumulator with an internal heat exchanger for use in an air conditioning or refrigeration system having a compressor, a condenser, an expansion device, and an evaporator is disclosed. In operation, the accumulator is placed in the system so high pressure, high temperature refrigerant flowing from the condenser and low pressure, low temperature refrigerant flowing from the evaporator simultaneously enter and flow through the heat exchanger disposed in the accumulator whereby the low pressure, low temperature refrigerant absorbs heat and thereby cools the high pressure, high temperature refrigerant. In one embodiment, the heat exchanger comprises a tube having at least one high temperature channel and one low temperature channel extending through the interior of the tube. In a second embodiment, the heat exchanger comprises a single spirally wound coaxial tube having an outer tube and an inner tube positioned within the outer tube. In a third embodiment, the heat exchanger comprises a plurality of coaxial tubes, each coaxial tube having an outer tube and an inner tube positioned in the outer tube wherein the inner tubes are fluidly connected.

Accumulator with internal heat exchanger

A continuous combination fin for a heat exchanger includes a base wall having a first portion, a second portion and a third portion. The continuous combination fin also includes a plurality of entrance louvers in the first portion extending outwardly at a predetermined angle in a first direction from the base wall. The continuous combination fin includes a plurality of exit louvers in the third portion extending outwardly at a predetermined angle in a second direction from the base wall reversed from the first direction. The continuous combination fin further includes a plurality of drainage louvers in one of the first portion and the second portion and the third portion that are off-set relative to each other such that air flows through the entrance louvers and exit louvers and water drains through the drainage louvers.

Growing community of inventors

Plymouth, MI, United States of America

Chao A Zhang