Secondary air pumps and systems
Rheinmetall entwickelt und produziert Komponenten zur Lufteinblasung in Abgasnachbehandlungssysteme. Hierzu zählen Ventile – wahlweise elektrisch oder pneumatisch betätigt. Ebenso Gebläse, ungeregelt mit DC-motorischen Antrieb oder regelbar mit BLDC-motorischem Antrieb.
Mögliche Einsatzzwecke sind z.B. eine Beschleunigung der Katalysatoraufheizung beim Kaltstart oder eine kontrollierte PartikelfilterregenerationElectrically actuated valves from Pierburg are distinguished by their short response times. Moreover, they need neither a vacuum or pressure supply, which in modern vehicles must often be delivered by a separate vacuum pump. This results in considerably increased efficiency.
| Technical Data | |
| Operating voltage | 8 - 16V |
| Current consumption (20 °C) | 2,6 A |
| Temperature range | - 40 °C to 120 °C |
| Pressure loss 30 kg/h | 17 hPa |
| Absolute pressure | 5.000 hPa abs |
These pneumatically-actuated valves are an attractively-priced option. The valves are actuated by vacuum or air pressure.
DC motor driven pumps
DC motor driven air pumps are generally used during cold starting. Here, they accelerate catalytic converter heat-up, which in turn reduces harmful emissions. They are predominantly installed in systems which require an almost constant airflow for a short period of operation, but where no speed variation is required.
| Technical Data | |
| Operating voltage | 8 - 16V |
| Air flow at 100 mbar (depending on design) | 20 to 40 kg/h |
| current consumption (13.5V / 20 °C / max. dP 100 hPa) | < 43 A Peak |
| Temperature range | - 40 °C to 120 °C |
BLDC motor driven pumps
In contrast to air pumps with DC motors, the speed of brushless DC (BLDC) motor-driven air pump is variable. This is why they are always used when a variable air flow is required, for example in applications with long power-on cycles and variable operating conditions
| Technical Data | |
| Voltage min./max. | 10V to 16V |
| Operation pressure | 0 - 400 mbar (at Peak: 450 mbar time limited) |
| Air mass flow | 2- 60 kg/h (at max. flow, time limited) |
| Communication | PWM diagnostic / PWM control / Lin |
| Spin up time | < 1,000 ms (3,000 rpm → 25,000rpm) |
| Temperature (min./max.) | - 40°C to 120 °C (storage) |
| Max. temperature, operation | +120 °C |
| Operation time | continuous (P < 800 W) |
Phone: +49 (0)2131 520-01
Fax: +49 (0)2131 520-645