143451 ⎘
Rotary-piston machines or pumps having the characteristics covered by two or more groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member and hinged to the inner member
Automotive liquid pendulum vane pump
#2Oil pump having plurality of outer rotor pieces
#3Variable pressure pump with hydraulic passage
#4Electric pump with permanent magnet, connecting plates and plate holders
#5Spiral compressor
#6Oscillating slide machine that pumps different fluid mediums at different pressures