society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > parts of > transmission
fluid drive1941
power train1943
fluid clutch1951
1951 Engineering 26 Oct. 533/3 The transmission assembly..incorporates a fluid clutch.
1963 R. F. WebbMotorists' Dict. 58 A fluid clutch is..operated by engine speeds through two propellers (turbos) facing each other in a fluid filled container.