Heat Pumps TRIZ Cases

See how a reversible heat pump switches from counter-current to co-current flow in cooling mode

See how a second heat exchanger and three-way valve manage high-side pressure in variable speed

A three-way valve adds or bypasses a second heat exchanger to vary high-side volume, stabilizing refrigerant flow and pressure across compressor speeds.

See how positioning a heat pump evaporator after the heat exchanger further cools the heat sour

See how thermal insulation, heat pump recovery, and temperature-controlled cooling reduce diffu

Separate engine-side and system-side power units maintain control during leakage or power faults and enable a reliable engine stop.

A double-wall indoor heat exchanger uses a vented container to route refrigerant leaks outdoors instead of into occupied indoor space.

See how a flow passage switching valve bypasses the evaporator during heating mode using pressu

See how a geothermal heat pump uses calculated heat collection limits to prevent underground he

Placing the linear actuator between hot and cold displacers shortens shafts, reducing buckling, friction, sealing complexity, and energy loss.

See how aluminum-based MOFs with three ligand types balance hydrophilic and hydrophobic regions

Microporous membrane dehumidification lets a split liquid desiccant AC control humidity in small buildings without desiccant carry-over.

See how a sealed insulated housing with negative pressure prevents refrigerant escape, enables

Supercharging and intercooling raise gas engine intake density, preventing cooling failure in gas heat pumps during high outdoor temperatures.

See how monitoring fan power and vibration detects critical ice deposits on evaporators, trigge

Phase-change thermal storage buffers EV heat pump partial-load operation, cutting compressor cycling, energy use, and wear.

Liquid bypass mixing cools compressed refrigerant, prevents flow collapse, and extends turbocompressor heat pump partial-load operation.

See how an oil-free ejector first stage and turbo compressor second stage eliminate oil managem

See how extracting the outer tube from the liquid storage tank and positioning it externally el

See how a controllable ejector with needle adjustment enables efficient heat pump operation acr

See how asymmetric evaporator-condenser refrigerant paths and variable-speed compression reduce

Valve and expansion control let a vapor injection heat pump handle heating, cooling, reheating, and deicing in diverse ambient conditions.

A movable ejector needle lets a heat pump switch cooling and two heating modes by outdoor temperature to improve efficiency across conditions.

See how a multi-plate header with varying-width openings disperses refrigerant pressure, enhanc

A dual-channel vapor injection circuit keeps the compressor cooler, allowing EV heat pump cabin heating below -10°C with less heater use.

See how a heat insulating part between economizer and radiator prevents thermal conduction, mai

See how a segmented plate-shaped header reduces passage cross-sectional area and refrigerant re

See how active cooling via pre-cooled compensation tank fluid accelerates WHR system shutdown,

See how dynamic economizer valve control uses evaporator pressure feedback to prevent low-press

A concentric inner-and-outer pipe well head cuts thermal interference in geothermal loops, enabling shallower boreholes and lower installation cost.

See how a cooling heat exchanger integrated into the refrigerant circuit recovers electrical co

Compressed exhaust gas is stored and reintroduced to the intake or cylinder to lower combustion temperature and cut NOx without urea hardware.

See how a motorless purge system uses adiabatic absorption and pressure control to remove non-c

See how gradual revolution decrease and zero governor control prevent unburned fuel-air mixture

See how switchable upstream and downstream liquid extraction circuits prevent valve interferenc

Dynamic mode switching uses thermal storage to avoid inefficient heat-pump cycling and maintain COP across changing heat loads.

An oblique inner leg keeps a polymer shroud in contact with the wear ring across temperature swings, preserving seal integrity and temperature accuracy.

See how a retrofit heat pump with multiple evaporators operates on 120V power to upgrade existi

See how recirculation and adjustable saline mass flow enable a thermochemical heat pump to vary

Ambient air is split into hot and cold streams in a rotating spin chamber, avoiding compressors while enabling scalable HVAC control.

See how dynamic circulation control adjusts heat transfer medium flow based on temperature feed

See how vertical air inlet and outlet positioning in a heat pump load unit disperses leaked com

An exhaust-heated coolant loop feeds the heat pump evaporator, reducing separate piping and eliminating the low-grade heat exchanger.

See how flexible reservoirs expand to conform to trench walls, increasing heat transfer surface

See how combining refrigerant evaporation with adsorption-desorption cycles improves cooling ef

See how extracting latent heat to form ice slurry, then removing it from the reservoir, reduces

See how a heat pump system dynamically switches between hydro-unit and boiler operation based o

See how predictive modeling and thermal storage reduce ground heat exchanger size and capital c

Underground earth loops and linked heat-transfer circuits reuse refrigeration heat for store heating, cooling, and water heating.