Yes, it's a recirculation pump. See here:
https://www.google.de/patents/EP255...KG"+washing+machine&ei=ap7IUa63N4iztAarh4GgCA
Just go to Google Patents and search for: inassignee:"Miele & Cie. KG" and washing machine (or dryer or whatever) and have the results sorted by filing date (under search tools). There's also information on the dosing devices and more.
https://www.google.de/patents/EP255...KG"+washing+machine&ei=ap7IUa63N4iztAarh4GgCA
Just go to Google Patents and search for: inassignee:"Miele & Cie. KG" and washing machine (or dryer or whatever) and have the results sorted by filing date (under search tools). There's also information on the dosing devices and more.