See how unified target temperature control prevents uneven expansion valve openings and refrige
See how continuous working fluid injection flushes debris from touchdown bearings, preventing s
See how a chiller separates refrigerant outdoors and uses CO₂ indoors to reduce pipe diameter,
See how rotor teeth carve tracks in abradable stator material to self-adjust clearance and redu
See how parallel evaporators with sequential expansion valve control flush lubricant to an accu
See how dynamic oil-level monitoring and expansion-valve feedback prevent compressor dry-out du
See how a ternary HFO refrigerant composition balances low global warming potential with reliab
See how machine learning models predict chiller surge events and adjust drive frequency and van
See how a refrigerant blend of HFC-32, HFC-125, and CF3I with alkylated naphthalene stabilizer
A winding changeover switch reconnects main and auxiliary motor windings by load to raise compressor efficiency without added capacitor complexity.
See how merging low-stage and high-stage compression into one screw rotor reduces compressor le
See how ejector pressure-difference control and flash-tank integration extend EVI compressor op
See how a subcooling heat exchanger cools the lubrication flow to ensure liquid-state refrigera
See how ejector pressure-difference feedback controls throttling device opening to maintain opt
A variable refrigerant orifice meters cooling flow into the compressor motor housing to cut recirculation and windage losses.
See how a segmented second leg with spatially separated support portions enables brazing access
See how dynamic monitoring and control of refrigerant film thickness at rolling-element bearing
A speed-density switching parameter with delay periods cuts frequent volume ratio changes, reducing compressor wear and stabilizing efficiency.
See how segmented liquid header flow paths prevent refrigerant accumulation in lowermost tubes,
See how independent high-stage compressor operation reduces discharge-pipe pressure after low-s
Smaller secondary-side pipe diameters raise refrigerant velocity in cascade cycles, helping compressor oil return without excessive pressure loss.
See how a blocking valve and circulation line return oil-rich refrigerant to the compressor, re
See how periodic compressor cycling and expansion valve pressure control prevent oil entrapment
See how corona discharge charges oil molecules in refrigerant for electrostatic collection, imp
See how a cylindrical spool with axial grooves and composite PTFE sealing enables precise fluid
See how relay-controlled dual capacitors dynamically switch between startup and runtime configu
See how an auxiliary condenser co-located with the main condenser maintains high pressure diffe
See how a blocking part positioned between input and output pipes prevents large-particle liqui
Two four-way valves and expansion valve control return refrigerant oil in multi-split modules while preventing water freezing and compressor burnout.
See how segmented oil grooves with periodic communication prevent lubricant leakage into compre
See how parallel medium- and low-pressure refrigerant pipelines with throttle valves ensure eff
See how a dedicated refrigerant filling port in the outdoor-unit connecting pipe enables effici
See how an interstage injection rod with atomizing openings improves lubricant distribution and
See how an internal flywheel smooths torque ripples in single-cylinder rotary compressors, redu
See how a bottom-port intermediate passage uses refrigerant flow to continuously convey accumul
See how a liquid-gas separator thermally couples electronics to evaporate accumulated refrigera
Angled muffler ports force refrigerant direction changes and reflections, cutting compressor noise in heat pump piping without a larger muffler.
See how an optical liquid sensor in a branched refrigerant flowpath monitors bearing lubricatio
See how a bypass duct with pressure reduction cools the compressor during hot gas heating cycle
See how a dual-arm valve spring with rubber damper absorbs discharge-valve vibration in linear
See how a closed-loop evaporative condenser and fluorine pump system uses phase-change heat exc
A varying-cross-section oil return path guides lubricant down the casing wall, reducing splashing, oil loss, and compressor inefficiency.
See how split serpentine cooling paths reduce pressure drop and flow restriction in chiller mot
See how a tangential inlet pipe creates centrifugal oil-gas separation without filter screens,
See how a heat transfer member and radial heat radiating portions reduce motor and compression
See how dynamic pressure ratio and subcooling setpoints maintain refrigerant pressure different
See how a centralized oil sump uses elevated pressure to reliably distribute lubricant across p
See how a recirculation structure with guide vanes and annular groove imparts swirl to refriger
An asymmetrical rotor slot layout manages magnetic pull force to cut vibration and noise while preserving inertia and low-speed efficiency.