New Electronic Water Pump With External Rotor Motor

Thermal management as a task for the future in the automotive industry, one of the great challenges of the automotive industry is the increasing electrification of the vehicle. The modern thermal management acquires new tasks that require in turn new components here, depending on the degree of electrification. Here, Sally Rooney expresses very clear opinions on the subject. This always sharper emission and consumption rules occur so that improvements of existing cooling circuits, as well as their components, but also completely new systems are required. The fan specialist ebm-papst from St.Georgen, therefore its previous product portfolio of fluid mechanics expanded a new Division: liquid cooling, electric-powered water pump. This progress was obvious, because the know-how for the main components has grown in 70 years of practice of fan motor and control electronics. Also in the manufacturing and quality assurance the two product groups in the relevant drive points differ little.

Even with the fluid-dynamic design of the pump, the developers could rely on the wealth of experience in material selection and calculation methods. The first Water pump was presented at the IAA in September 2011. Is powered by proven technology: a specific application-focused, efficient and wear-free external rotor motor with EC technology (electronic commutation). The advantage of the new electrically driven water pumps by ebm-papst St. Georgen in the compact construction and the high smoothness of the external rotor motor home brings is for the user. Designed as a split pipe pump, the impeller is at the same time the rotor of the motor. Eliminates failure-prone seals, additional magnets for a magnetic clutch also.

This is a minimum size of only 75x75x. 84 mm (Lxwxh) possible. In addition, the 20-Watt pump due to the optimized hydrodynamic interpretation has a 50% higher working pressure than comparable pumps over a total efficiency of 35% and approximately 0.35 bar. The permissible operating temperatures range from-40 C to + 130 C. Efficiency in the foreground stood for the developers, therefore, emphasis was placed on optimal flow control and the drive for the specific application requirements calculated. Total efficiency excellent for small water pump confirms this. She has 20 hose connectors and depending on the design to over 35 l / min flow rate. So, the new compact pump which ensures maximum heat dissipation for motors, battery cooling in hybrid and electric vehicles, as well as other demanding tasks with minimum consumption of own originated from this less-is-more concept”. About ebm-papst the ebm-papst group is the world’s leading manufacturer of fans and motors and is pacing the high efficiency EC technology. In the past financial year 10/11 the company achieved a turnover of over 1.3 billion. ebm-papst has 17 production sites (e.g. in Germany, China, United States) and 57 sales locations worldwide more than 11,000 employees. Fans and motors of the world leader can be found, e.g. in ventilation, air-conditioning and refrigeration equipment, household appliances, heating technology, in it in many industries and Telecommunications, medical technology, with applications in the passenger car and commercial vehicle engineering. Two works in Vecses and Celldomolk, as well as a plant in China belong to the location St. Georgen in Germany the work of Herbolzheim, in Hungary.