Abstract: A gerotor device includes a valving plate, a balancing plate structure, and a rotor positioned between the valving plate and the balancing plate structure. High pressure fluid flowing from the valving plate toward the rotor pushes the rotor toward the balancing plate structure. The balancing plate structure includes a balancing plate and a second plate. A cavity is defined between the balancing plate and the second plate. The balancing plate includes a fluid passage having a check valve and fluid passes through the fluid passage for pressuring the cavity. The balancing plate includes first and second relief holes extending through the balancing plate connected with the cavity.

Abstract: A gerotor device includes a valving plate, a balancing plate structure, and a rotor positioned between the valving plate and the balancing plate structure. High pressure fluid flowing from the valving plate toward the rotor pushes the rotor toward the balancing plate structure. The balancing plate structure includes a balancing plate and a second plate. A cavity is defined between the balancing plate and the second plate. The balancing plate includes a fluid passage having a check valve and fluid passes through the fluid passage for pressuring the cavity. The balancing plate includes first and second relief holes extending through the balancing plate connected with the cavity.

Abstract: A fluid opening is disclosed on the head section of a drive shaft 30, such opening fluidically connected to the furthest away fluid port so as to draw fluid across the bearings of the device.

Abstract: A loudspeaker assembly for use outdoors is disclosed. A woofer speaker is secured in a housing for the downward projection of sound through a generally continuous circumferential aperture between the housing and base. A tweeter is mounted coaxially with the woofer for the projection of sound downwardly thereby providing for the omnidirectional projection of sound from the speaker assembly.