Class 60/485 - Unit having coaxial rotary output shafts and pump means in a common housing (e.g., automobile differential, etc.)

Subclass of Class 60 - Power plants
Definition: Apparatus having a pump as the pressure fluid source and
No. of patents: 25
Last issue date: 03/23/2010

Number	Title	Issue Date
7681393	Hydrostatic drive axle with two hydrostatic axial piston motors utilizing a swashplate design located next to each other A hydrostatic drive axle has two hydrostatic axial piston motors utilizing a swashplate design located coaxially next to each other, the control sides of which face each other. Tubular terminal segments (1a) of the drive axle are in the form of axial p...	03/23/2010
7647769	Hydraulic transaxle for garden care vehicle A hydrostatic transmission assembly includes a first gerotor motor, a pump housing, a first variable displacement pump, a second gerotor motor, and a second variable displacement pump. The first gerotor motor includes a first output shaft aligned along a first axis....	01/19/2010
7395665	Hydraulic transaxle for garden care vehicle A hydrostatic transmission assembly includes a first gerotor motor, a pump housing, a first variable displacement pump, a second gerotor motor, and a second variable displacement pump. The first gerotor motor includes a first output shaft aligned along a first axis....	07/08/2008
7347135	Water pressure driven generator A fluid pressure driven generator which includes a generator housing and a rotor positioned within the generator housing. A power shaft is positioned in the rotor with a moment arm connected between the power shaft and rotor. A high fluid pressure inlet will be form...	03/25/2008
7162991	Lightweight four-stroke engine A lightweight, four stroke engine includes a crankcase enclosure and at least one piston assembly disposed within the crankcase enclosure. The piston assembly cooperates with the crankcase enclosure to provide an internal pressure to the crankcase enclosure which va...	01/16/2007
7127889	Zero turn transaxle A hydraulic drive apparatus having a pair of hydraulic pumps and a pair of hydraulic motors mounted on a common center section in a housing is disclosed. Each hydraulic motor is engaged to an adjustable swash plate located in the transmission housing for adjusting t...	10/31/2006
7056101	Inline tandem pump A dual tandem pump apparatus having a pair of coaxially arranged pump shafts and a separate input shaft that is not coaxial with the pump shafts. The trunnion arms for the two pumps may be mounted in different locations to increase application flexibility. Charge pu...	06/06/2006
7047736	Zero turn transaxle A transaxle comprised of a hydrostatic transmission mounted in a transmission housing and having a pair of hydraulic pumps and hydraulic motors operatively connected together through a center section mounted in the housing. First and second axle housings are mounted...	05/23/2006
6996979	Hydraulic circuit for a hydraulic excavator A hydraulic circuit for a hydraulic excavator having a motor drive which acts on at least two closed drive circuits which are connected in parallel, each have a hydraulic pump and a hydraulic motor and which operate on a common output drive, connecting lines being p...	02/14/2006
6957531	Center section for a hydrostatic transaxle A center section for a hydraulic pump and motor mounted in a transaxle casing. The center section has a protuberance formed thereon, a pair of flat surfaces separate from the protuberance and at least one fastener opening formed in the center section for receiving a...	10/25/2005
6935982	Differential gear A recess is formed on the side surface of output-side cams on the right side with through holes being formed on the sidewall of the case body of the differential case at positions corresponding to the recesses. An annular member is placed on the case body so as to b...	08/30/2005
6843056	Zero turn transaxle A transaxle comprised of a hydrostatic transmission mounted in a transmission housing and having a pair of hydraulic pumps and hydraulic motors operatively connected together through a center section mounted in the housing. First and second axle housings are mounted...	01/18/2005
6775976	Zero-turn hydrostatic transaxle A pair of substantially mirror image, zero-turn, hydrostatic transaxles (HZTs) that may be joined to form an integrated, zero-turn, hydrostatic transaxle. The control arm and brake mechanism associated with the HZTs can be mounted on either the inboard or outboard s...	08/17/2004
6758112	Power transmission arrangement of a working vehicle and transmission for the working vehicle In a power transmission arrangement, a working unit includes a hydraulic power unit and a valve unit enclosed in a first bulging portion of a transmission case closer to an upper side or on a top surface thereof and connected with each other along a vehicle lengthwi...	07/06/2004
6199380	Axle driving apparatus An axle driving apparatus including a housing which houses an input shaft having a longitudinal axis of rotation, axles having a lateral axis of rotation and a power-take-off shaft having a longitudinal axis of rotation. The housing may include a first ho...	03/13/2001
5811000	Precipitation device for metal particles in transmission fluids A precipitation device for removing pieces of metal from the lubricating fluid for a transmission includes a screen in the path of flow of the lubricating fluid and a permanent magnet at one end of the screen. The screen is made of a nonmagnetic material ...	09/22/1998
5412947	Continuously variable transmission A working machine such as a powered lawn mower has a continuously variable transmission for transmitting the power of an engine to wheels at a variable speed reduction ratio. The continuously variable transmission comprises an axial-plunger-type hydraulic...	05/09/1995
5269142	Differential rotation control device with a hydraulic assembly A differential rotation control device with a hydraulic assembly includes two torque transmission assemblies. Each assembly has a first rotor with a pump-driven arrangement secured to a drive shaft which is common to both of the torque transmission assemb...	12/14/1993
5241232	Homopolar motor-generator A homopolar motor-generator comprising two homopolar machines in series with a conductive belt transmitting current between the rotors of the machines which are caused to rotate in synchronism in oppositely directed magnetic fields to allow extraction of ...	08/31/1993
4696164	Hydrostatic transaxle and locking differential and brake therefor A hydrostatic transaxle assembly T is disclosed including a pump (11), a manifold portion (13), and right and left motor axle assemblies (15 and 17). Each of the motor axle assemblies includes a radial ball motor (41), the output of which is the input to ...	09/29/1987
4671063	Hydraulic intensifier A hydraulic intensifier having a hydraulic motor driven from a low pressure source and operable to drive a low pressure pump for sucking oil from a reservoir and for delivering the oil as charge oil to a high pressure pump. The latter also is driven by th...	06/09/1987
4581895	Hydrostatic transaxle assembly A hydrostatic transaxle assembly having first and second output shafts extending outward therefrom. The assembly includes a housing enclosing a portion of the first and second output shafts and forming a generally cylindrical chamber therein. A manifold i...	04/15/1986
4308719	Fluid power system A fluid power apparatus for converting steam to hydraulic energy having one or more pairs of linear steam and linear hydraulic cylinders arranged symmetrically and with their axis parallel about a steam generator. The rod ends of the cylinders are connect...	01/05/1982
4025246	Rotary machine with counterweights for interfitted vanes The rotary machine comprises: a stationary housing having an interior profile defining a monolobic configuration; a rotary cylindrical body arranged eccentrically in the housing and including a series of arc-shaped segments mounted in circular alignment i...	05/24/1977
3948049	Dual motor hydrostatic drive system A pair of hydraulic motors are operatively drivingly connected to a common rotatable member and are employed for transmitting power thereto from a pair of prime movers. A first hydraulic circuit communicates with one of the hydraulic motors and includes a...	04/06/1976

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Class 60/485 - Unit having coaxial rotary output shafts and pump means in a common housing (e.g., automobile differential, etc.)