Patent ID: 8292597

Claim:
A gear pump comprising: a casing having at least one inlet adapted to receive a fluid, an interior to receive gears to pressurize the fluid, and an outlet to output pressurized fluid; at least one inlet gear positioned at each of the at least one inlet and adapted to pressurize fluid received at an associated one of the at least one inlet; a drive gear positioned at the outlet of the casing, the drive gear adapted to receive fluid pressurized by the at least one inlet gear and to output pressurized fluid at the outlet; a speed-reduction gear meshed to the drive gear and connected to the at least one inlet gear, the speed-reduction gear having a greater number of teeth than the drive gear to reduce a rotational speed from the drive gear to the at least one inlet gear, such that the at least one inlet gear has a lower speed that the drive gear; and an input shaft coupled to the drive gear and adapted to receive a rotational input to actuate the drive gear, wherein at each and every one of said at least one inlet, the associated at least one inlet gear is driven at a lower speed than the drive gear via said speed-reduction gear.