Patent ID: 6929105

Claim:
A fluid clutch arrangement comprising: a housing which can be rotated about an axis of rotation and having an interior which can be filled with fluid; an output element which can be rotated about said axis of rotation relative to said housing; a first friction surface arrangement and a second friction surface arrangement which can be brought into frictional engagement with each other, wherein said first friction surface arrangement is coupled to said housing for rotation together and said second friction surface arrangement is coupled to said output element for rotation together; means for producing a fluid exchange flow wherein fluid is continuously introduced into said interior and removed from said interior; and a fluid circulation arrangement in said housing for causing fluid to circulate around at least some parts of said first and second friction surface arrangements without requiring a fluid exchange flow at the same time, said fluid circulation arrangement comprising: a first fluid conveying element which can be rotated with said housing; and a second fluid conveying element which can be rotated together with said output element.