Centrifugal Compressors and Blowers

The BNHP-35 series blower enhances fuel cell efficiency, providing cost-effective solutions for demanding applications.

• Volumetric Flowrate: 17 Liters/sec (36 CFM)
• Head:  1664 meters (5460 ft-lbf/Lbm)
• Weight: 4.5 kg (9.9 lbm)
• Size:  333 x 198 x 201 mm (13.1” x 7.8” x 7.9”)
• Variable Speed to 40,000 RPM for wide-range performance
• Partial Emission Centrifugal
• Hermetic Design – no dynamic seals
• Aluminum Housings
• PM Brushless DC Motor
• Electrical Input Options 28V/ 200-600V DC
• Liquid Cooled Motor / Bearings / Controller
• High-Speed Ceramic Ball Bearings
• Integrated Controllers (Sensor/Sensorless)
• Successfully Passed Environmental Testing

This pump is designed with an integrated side controller for vehicle-specific packaging.

• Volumetric Flowrate: 1 Liters/sec (34.1 CFM)
• Pressure Rise: 35 kPa (5 psi)
• Size: 259 x 229 x 163 mm (10.2” x 9.0” x 6.4”)
• Speed up to 42,000 RPM
• Maximum Allowable Working Pressure is 400 kPa
• Isolation of low and high-voltage portions of the controller
• Electrical Input 200-400 V DC
• Patented features for cooling and EMI minimization
• Custom-designed high-speed brushless DC motors for maximum efficiency and power density.

Centrifugal air compressor designed for aircraft  applications.

• Mass Flowrate:  0.09 kg/sec (12 lbm/min)
• Pressure Ratio:  3.14
• Weight: 34 kg (75 lbm)
• Size:  348 x 206 x 196 mm (13.7” x 8.1” x 7.7”)
• Speeds over 120,000rpm and utilization of high-speed foil bearings for journal and thrust surfaces
• Two stages of compression in series with inter-stage cooling were utilized to meet high-pressure ratio requirements.
• The stages are opposed on either end of the motor shaft to help balance the thrust loads.
• Compressor driven by a 17kW high-speed, 2-pole permanent magnet, 270VDC motor
• Fully Integrated controller communicates with the vehicle management system via Communication Area Network (CAN).
• Designed to meet MIL-STD-704F for control and traction power inputs and DO-160 for lightning, transient voltage suppression, EMI, shock, and vibration.

Designed for cathode (air) supply in automotive applications.

• Flow: 0.14 kg/sec (18.4 lbm/min)
• Pressure Ratio:  2.7
• Weight: 10 kg (22 lbm) Compressor / 14 kg (31 lbm) Controller
• Size: 348 x 196 x 168mm (13.7” x 7.7” x 6.6”)
• Speeds up to 123,000 RPM​
• 20kW Motor Input Power
• Single-Stage Full Emission Compressor​
• Foil Bearings (Thrust & Journal)​
• Liquid-Cooled Permanent Magnet Motor & Separate Controller

Motor-Driven Compressor to circulate CO2 in lab test to demonstrate advanced cooling in an aerospace application

• Mass Flow Rate: 4 kg/s (185 lbm/min)
• Pressure Rise: 345 kPa (50 pisg)
• Weight: 19.5 kg (43 lbm) lab unit, 6.8 kg (15 lbm) aerospace unit
• Size: 792 x 523 x 173 mm (31.2” x 20.6” x 6.8”)
• Size of Aerospace Unit: 127 x 127 x 127 mm (5” x 5” x 5”)
• Speed: up to 39,600 RPM
• Maximum Allowable Working Pressure: 1500 psig
• Magnetic coupling enables a hermetic seal of high-pressure CO2
• A high-speed motor transmits torque through the magnetic coupling
• Foil journal and thrust bearings for high-speed operation in CO2
• Capable of multiple regimes of operation (superheated, supercritical, mixed quality, subcooled)

High-speed, high-temperature compressor circulating Helium as a heat transfer medium.

• Mass Flow Rate: 78 kg/s (368 lbm/min)
• Pressure Ratio: 011
• Weight: 586 kg (1291 lbm)
• Size: 1067 x 914 x 610 mm (42” x 36” x 24”)
• Speed: Foil bearings enable speeds over 17,000 RPM
• Allowable pressures over 800 psi
• Temperature range: -40^o F to +932^o F

Water Vapor Compressor used in a Termal Membrane system to replace a chiller system.

• Mass Flow Rate: 014 kg/s (1.86 lbm/min)
• Pressure Rise: 1 kPa (0.6 pisg) 4 stages
• Size: 1118 x 711 x 584 mm (44” x 28” x 23”)
• Speed: 30,000 RPM
• Maximum working pressure: 50 psig
• No refrigerant use

Compressor features:

• 4 Stages of Compression
• Intercooler between stages 2 and 3
• Dual Overhung Design
• VFD Controlled