Gerotor-type fluid motor
OwnerTrimbak Shridhar ATTARDE, Jay Paul LUCASinventors
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Abstract
The invention relates to a Gerotor-type fluid pump or Gerotor-type fluid motor (100) with a port plate segment (108). The port plate segment (108) includes an inner recess (220) for a valve drive shaft (172) that is orbiting and rotating within the port plate segment (108). The port plate segment (108) further includes a plurality of circumferentially arranged fluid throughput ports (136) for selectively fluidly connecting a valve spool segment (110) and a Gerotor-type fluid displacement segment (106) of the Gerotor-type fluid pump/Gerotor-type fluid motor (100). The inner recess (224) includes at least two axially aligned segments (221, 222) with different diameters that are designed in an undetachable way.
Claims20
A port plate segment for a rotary fluid pressure device, comprising an inner recess for receiving a valve drive shaft that is orbiting and rotating within said port plate segment, the port plate segment further comprising a plurality of circumferentially arranged fluid throughput ports for selectively fluidly connecting a valve spool segment and a Gerotor-type fluid displacement segment of the rotary fluid pressure device, wherein the inner recess comprises at least two axially aligned segments with different diameters.
The rotary fluid pressure device according to claim wherein the valve drive shaft comprises two end sections that are connected by a middle section, wherein at least the end section facing toward the Gerotor-type fluid displacement section, preferably both end sections comprise a diameter that is larger than that of the middle section.
Dependencies are inferred from the claim text.