Electric pumps

Bühler Motor develops and produces:

  • Electric gear oil pumps (bFlow O)
  • Electric auxiliary water pumps (bFlow C)
  • Drives for electric vacuum pumps
  • AdBlue® pumps as solutions to reduce emissions

Electric gear oil pumps bFlow O and oil pump drives bDrive

Our family of electric gear oil pumps offers new functions in gears and enables efficiency to be dramatically increased, thus cutting C02 emissions. They provide special solutions for start/stop, coasting and electric driving, for specific lubrication and cooling, dry sump solutions and additional functions such as actuation of parking locks.

Application: DCT, AT, CVT, AMT, BEV/hybrid transmissions (DHT)

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Features:

  • Can be fully or partly integrated in the transmission
  • Alternative: Installation externally on transmission
  • Materials and sealing systems in accordance with the conditions of use and the oils used
  • Depending on hydraulic requirements, as flow or positive displacement pumps (impeller, gerotor or vanes)
  • Customer-specific communication (PWM / LIN / CAN- interface)

Technical data, bFlow O20:

  • Power consumption: 20 W – 80 W
  • Temperature range: -40°C – +140°C
  • Max. delivery (typical): 20 l/h
  • Max. feed pressure. 500 mbar
  • Working life: > 10,000 h
  • Protection: IP6k9k

Technical data, bFlow O100/ bFlow O300/ bFlow O600/:

  • Power consumption: 100 W – 600 W
  • Temperature range: -40°C – +140°C
  • Max. delivery (typical): 20 l/h
  • Max. feed pressure. 30 bar
  • Working life: > 10,000 h
  • Protection: IP6k9k or in transmission

Product examples for electric oil pumps bFlow O:

  • bFlow O20
  • bFlow O100
  • bFlow O300
  • bFlow O600

Product examples for electric oil pump drives bDrive:

  • bDrive 50 oil pump housing with micro-controller
  • bDrive 60 oil pump drive for 7DCT
  • bDrive 70 oil pump drive for hybrid vehicle

Electric auxiliary water pumps – bFlow C

Our family of water pumps covers a wide performance range. Depending on performance class, the optimized compact design and low weight combined with an ultra-flexible fixing concept open up a wide range of applications for our customers. Our standardized manufacturing concept means that all water pumps can be produced in our plants across the globe.

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Features:

  • Customer-specific communication ( PWM, LIN)
  • Motor mounting possible
  • Customized connection design (hydraulic, electric)
  • Performance-specific hydraulic concept
  • Wet-running motor concept with static sealing concept
  • ’Suitable for hybrid and fully electric applications

Applications:

  • Auxiliary heating systems
  • Internal heating
  • Post shutdown cooling
  • AGR and turbocharger cooling
  • Battery and performance electronics cooling in Hybrid applications
  • Electric vehicles

Technical data bFlow C:

  • Power consumption: 12 W – 150 W
  • Temperature range: -40°C – +135°C
  • Max. delivery: 950-3,000 l/h
  • Max. feed pressure. 1,500 mbar
  • Working life: > 10,000 h (optionally up to 40,000 h)
  • Protection: IP6K9K
  • EMV CISPR25 - Level 5

Product examples:

  • bFlow C 20
  • bFlow C 30
  • bFlow C 50
  • bFlow C 80
  • bFlow C 120

Electric pumps and pump drives for all-wheel drive

Pumps and pump drives with very good synchronization allow the all-wheel clutch to be controlled directly. Using optional sensors, very precise, fast regulation of rotation speed across the entire working range.

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Features:

  • Flexible interfaces for axial piston, gear wheel and gerotor pumps
  • Optional hall-effect incremental sensors, GMR sensors
  • Robust design for all all-wheel applications
  • DC or BLDC technology

Applications:

  • Electro-hydraulic all-wheel clutch systems
  • Transfer cases
  • Locking differentials

Technical data:

  • Power consumption: 20 W – 300 W
  • Temperature range: -40°C – +140°C
  • Max. delivery: 40 bar
  • Working life: > 10,000 h
  • Protection: IP6K9K

Product examples:

  • bDrive 50 with integrated pump housing

Electric pumps for exhaust gas after-treatment (SCR)

Compact AdBlue®/DEF pump with split case design for conveying reduction liquid to the SCR injector.

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Features:

  • Bidirectional, filling/feeding and draining with a pump
  • Frost-proof design
  • RDE-capable
  • Defrost support possible
  • In-tank or on-tank solution available
  • Compact/lightweight version available
  • Robust stainless steel split case
  • Low running noice

Applications:

  • AdBlue®/DEF pumps in SCR systems

Technical data:

  • Power consumption: < 21 W
  • Temperature range: -40°C – +80°C
  • Max. delivery: 10 l/h
  • Max. feed pressure: up to 7 bar
  • Working life: > 6,000 h

Product examples:

  • SCR pump compact
  • SCR Pump premium

Electric vacuum pumps

Low-noise DC pump drive for electric vacuum pumps e.g. to support braking power.

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Features:

  • Highly integrated design for vane pump
  • Very tight tolerances
  • Can be installed horizontally or vertically

Applications:

  • Brake booster

Technical data:

  • Power consumption: 80 W – 130 W
  • Temperature range: -40°C - 120°C
  • Working life: 450,000 cyles
  • Protection: IP6K9K
  • EMC CISPR25 – Level 5
  • Diameter: 51 mm
  • Length: 100 mm

Product examples:

  • Vacuum pump

Development
expertise

Bühler Motor Innovation and Technology Development looks far into the future.

It identifies and examines technical trends its own core markets and new technologies in new areas of application.

Areas of expertise

System expertise

One of our greatest strengths is our ability to dive deeply into our customers’ systems and applications.

We are thus able to offer our customer complete systems consisting of electronics including sensors, motor, transmission and/or pump from one source.

Areas of expertise

Quality expertise

From pre-development to series production – quality assurance goes without saying at Bühler Motor. 

Our development projects are consistently safeguarded by project maturity assessments within the APQP process.


Areas of expertise