Research and Development

Drag torque test bench 15 kW

R&D at oil pumps/small block assemblies up to R4 2.0l engines:

• T-slottet mounting plate for application of test objects,
• AC-drive unit 15 kW, speed range: 200 … max. 10,000 r. p. m.,
• Motor spindle vertically adjustable: 100 … max. 400 mm CD,
• High accurate measurement of rotational speed, input torque,  
• Set-point transmitter: digital (CAN-Bus/PROFIBUS DP),
• Numeric controls for pressure/flow-rate/temperature,
• Heat transfer circuit for indirect heating of lubricant,
• Integrated oil reservoir: 40 l,
• Temperature control: +30 … +160 °C,  ± 1 K,
• Rated power for heating/cooling: 18/150 kW,
• Pressure control: 0 … 12 bar (rel.), ± 10 mbar,
• Flow-rate: 150 l*min-1, ± 1 l*min-1,
• Housing made from particular cast polymeric concrete,
• Dimension: 4.9 × 3.5 × 2.2 m (L × W × H).

Drag torque test bench 50 kW

R&D on small block assemblies up to V12 engines 6,0 l displacement:

• T-slottet mounting plate for application of test objects,
• Frame and housing with excellent damping behaviour made from particular cast polymeric concrete,
• Integrated column guide frame,
• Motor spindle vertically adjustable: 300 … max. 750 mm CD,
• Fluid-cooled asynchronous three phase integrated motor 50 kW,
• Speed range: 200 … max. 10,000 r. p. m.,
• Optional: set of two customized gyrating masses,
• High precision measurement of drag torque, rotational speed,
• Optional: set of two customized gyrating masses,
• Integrated reservoir for oil-leakage: 120 l,
• Set-point transmitter: digital (CAN-Bus/ PROFIBUS DP) from PC-based control system/operator panel,
• Dimension: 4.0 × 1.5 × 2.2 m ( L × W × H ).

R&D at oil/coolant circuits

Test benches for lubricating oil/coolant circuits:

Station 1: Cylinder heads with multivalve technology, 4(6)-cylinder in-line, V6; Station 2: Small block assemblies 4(6)-cylinder in-line, V6, 3,0 l displacement

Specification of drag-torque test benches:

• Digital drive units (AC servo), input power: 17/132 kW
• Rotational speed: 200 … max. 10,000 r. p. m., speed control system,
• Lubricating oil supply:
  - Temperature control: -30 … +170 °C, ± 1 K, incl. thermal shock
  - Pressure control: 0 … 10 bar (relative), ± 10 mbar,
  - Flow-rate: max. 120 l*min-1,
• Coolant supply:
  - Temperature control: -30 … +130 °C, ± 1 K,
  - Flow-rate: max. 250 l*min-1.

Geschleppter Motorenprüfstand DYNACAM

Messung von dynamischen Vorgängen in Steuer-, Aggregate-
und Kurbeltrieben:

• Belastungsverläufe und
• Bewegungsverläufe
• Testobjekte Station 1:
  Zylinderköpfe mit Mehrventiltechnik, 4(6)-Zylinder in Reihe, V6.
• Testobjekte Station 2:
  Rumpfmotoren 4(6)-Zylinder in Reihe, V6, 3,0 l Hubraum,
  Nebenaggregate mit simulierter Belastung.

Spezifikation des geschleppten Motorenprüfstandes:

• digit. AC-Servo, Antriebsdrehzahl: max. 9.000 min-1,
• Drehzahlregelsystem/programmierbare Kurvenscheibenfunktionalität mit
  virtueller Leitachse (max. 1024 Stützstellen/U),
• quasistatische Messungen: 16 Signaleingänge für Sensoren
  ohne eigene Verstärkerelektronik,
• 10 kHz Abtastrate, 16 bit Auflösung,
• dynamische Messungen: 16+4 Signaleingänge für Sensoren mit
• integrierter Verstärkerelektronik, max. Samplingrate 1,25 MS,
• Schmierölkonditionierung: 3 × 6 bar/5 × 55 bar, 20 … 130 °C,
  PID-Regelung,
• Kühlwasserkonditionierung: 20 … max. 100 °C, PID-Regelung.