Abstract: A soil processing machine includes a hydraulic drive system including an electrohydraulic pressurized fluid source with at least one electric motor and at least one hydraulic drive pump, a hydraulic drive circuit fed with pressurized fluid by the at least one hydraulic drive pump, at least one hydraulic drive motor fed with pressurized fluid from the hydraulic drive circuit, and a discharge valve assembly for discharging fluid from the hydraulic drive circuit to a fluid reservoir. The hydraulic drive system is designed to operate the discharge valve assembly as a function of at least one of the following parameters: a temperature of the fluid in the hydraulic drive circuit, an ambient temperature, a viscosity of the fluid in the hydraulic drive circuit, a degree of contamination of the fluid in the hydraulic drive circuit, a period of time since the last start-up of the hydraulic drive system, a period of time since the last fluid was discharged from the hydraulic drive circuit.

Abstract: A fluid transmission device for a vehicle includes a cover and a positioning member. The cover is configured to be driven rotatably about the axis of the fluid transmission device integrally with a drive plate. The drive plate includes a positioning hole that positions the drive plate and the cover. The positioning member is a columnar member. The positioning member is provided on the surface side of the cover, which is opposed to the drive plate, at a radially outer position of the cover. The positioning member protrudes to a drive-plate side in a state where the positioning member is arranged in the positioning hole. The positioning member protrudes from the drive plate obliquely with respect to the axis direction of the fluid transmission device. A radially outermost position of the positioning member is located on the radially inner side relative to a radially outermost position of the cover.

Abstract: An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor.

Abstract: A device to actuate a contamination cover on a machine bracket, the device comprising a master cylinder positioned on the machine bracket; a first slave cylinder positioned on the machine bracket and connected to the contamination cover; and a closed master-slave circuit connecting the master cylinder to the slave cylinder wherein the actuation of the master cylinder drives the slave cylinder for the transition of the contamination cover from a close to an open position.

Abstract: A drive device comprising improved components is described. The drive device may be of various known types that require the use of a steering clutch, axle support housings, and a vent that may either seal an internal sump or open the sump to an external atmosphere. The drive device is shown with a walk-behind vehicle that may include a snow thrower or blower.

Abstract: A hydraulic fast fitting for hydraulic pipes, including a first fitting element (1) in fluid communication with a first pipe (2), provided with a first valve (3) for opening and closing the fluid communication with the first pipe (2), and a second fitting element (5), provided with a second valve (6) for opening or closing a fluid communication with a second pipe (7), and further including a removable fast-coupling device (19) for connecting said first and second fitting elements (1, 5) and establishing a fluid communication between said first and second pipes (2, 7).

Abstract: A hydrostatic transmission mountable to a frame of a vehicle for driving a left side or right side drive wheel. A motor portion of the transmission can extend outwardly from the frame and a pump portion can extend upwardly from the frame. The motor portion can be configured to be at least partially received within a wheel for direct mounting of the wheel to an output shaft of the motor. The pump portion can include an input shaft extending from a lower side thereof for connection to a prime mover, such as an internal combustion engine.

Abstract: A pump includes a pump housing and an end cap, which is attached to the pump housing at the top and has an oil suction port at one end and an oil relief port at one lateral side. A connecting cap is connectable to the end cap opposite to the pump housing in one of a number of positions in different directions and which has two ports cut through the two opposite ends thereof for letting in and out a fluid to/from a hydraulic motor. Two plugs are selectively fastened to one of the two ends of each of the two ports of the connecting cap to control the flow direction of the fluid passing to/from the hydraulic motor through the connecting cap.

Abstract: A hydraulic valve stack for a work machine is disclosed. The hydraulic valve stack has a base with a first mounting surface and a second mounting surface. The base is connectable to the work machine and has at least one fluid passageway extending through the base from the first mounting surface to the second mounting surface. The hydraulic valve stack also has a permanent valve assembly configured to control a permanent function of the work machine and an optional valve assembly configured to control an optional function of the work machine. The permanent valve assembly is connectable to the first mounting surface of the base, while the optional valve assembly is connectable to the second mounting surface of the base. Each of the permanent and the optional valve assemblies have at least one fluid passageway in communication with the at least one fluid passageway of the base.

Abstract: An end cap adaptable for use with either a dual hydraulic pump unit having two pumps in a side-by-side arrangement or a pair of separate hydraulic pumps having separate housings. The internal structure of the end cap is arranged in such a manner to permit the separation of the single end cap into two separate end caps. An adapter plate may also be used to attach separate end caps to a single pump housing for use as a dual pump unit.

Abstract: A hydraulic motor assembly having a motor and gear reduction set mounted in a housing. The housing may be formed of separate components, including the external surface of the ring gear and the hydraulic motor port block. Pressure relief valves or neutral valves may be located in the motor port block.

Abstract: A hydraulic actuator package of the present invention comprises a variable displacement hydraulic motor for driving an inertia object with acceleration or deceleration, a speed sensor for detecting a speed of an output shaft of the hydraulic motor, a control valve for continuously varying the capacity of the hydraulic motor, which are integrally provided inside or outside a casing of the hydraulic motor, and an assembling body formed by integrally assembling an accumulator serving as a hydraulic source of the hydraulic motor and an airtight tank into a common pedestal, said assembling body being mounted on said casing, first and second ports of the hydraulic motor communicating with the accumulator and the airtight tank in the casing and the pedestal, and first and second external connection ports being defined in the pedestal or the casing, and capable of being connected to the first and second ports from the outside.

Abstract: The present invention relates generally to a hydraulic power unit for supplying hydraulic fluid under pressure to industrial equipment, and more particularly to an auxiliary hydraulic power unit that is adapted to mount to a vehicle and supply auxiliary hydraulic power to auxiliary equipment associated with the vehicle during operation in the field.

Abstract: This invention relates to an arrangement for communicating fluid between a pressurized source and an implement that is remotely mounted on a linkage arrangement of a construction machine. The conduit arrangement includes a pair of conduits positioned internally within the linkage arrangement. One conduit communicates the pressurized fluid to a control valve mounted on the end of the linkage, while the second returns the fluid to a reservoir. This arrangement permits a plurality of conduits to extend between the control valve and a multi-function implement mounted on the linkage arrangement while limiting the number of conduits between the control valve and the source of pressurized fluid.

Abstract: A method of flushing a closed loop hydraulic system utilizes a pair of adapters temporarily disposed between a drive motor and a pair of hoses during the flushing procedure. The adapters block communication between the hoses and the motor and cover the inlet/outlet ports of the motor. By connecting a case drain line to one of the adapters and running the engine to drive a charge pump, oil is circulated through the hose connected to that adapter, the case drain line, a case drain line filter and is returned to a tank. The case drain line is then switched to the other adapter so that oil from the charge pump is circulated through the other hose.

Abstract: The present invention concerns nutritionally complete food compositions which contain partially hydrolyzed pectin. The partially hydrolyzed pectin has a peak molecular weight less than unmodified pectin and greater than 3,300.

Abstract: The mobile machine is provided with a power unit containing a prime mover and a hydraulic system connected thereto for supplying power to hydraulically operated machine parts. The power unit includes a number of components and is mounted at a support frame. Either the entire power unit as such or selected ones of its components are arranged for displacement between a first or operative position and a second or displaced position in which free access is provided to the power unit as such or its selected components for maintenance and/or repair operations. Also, those parts of the machine, which are hidden behind the power unit or its selected components in their first or operative position, become accessible in the second or displaced position of the power unit or selected components thereof.

Abstract: In a master cylinder (20), a cap (30) for guiding a primary piston (50) is located within an end opening (24) of a body (22) of the master cylinder (20). The end cap (30) retains a sleeve (40) and other components within a bore (12) of the master cylinder (20), and is attached to the body (22) of the master cylinder (20) by way of a biasing retention mechanism (45; 145, 150; 260). The mechanism (45; 145, 150; 260) may bias the end cap (30) axially inwardly of the bore (12), bias a gripping ring member (145) radially outwardly into engagement with the body (22) of the master cylinder (20), and retain a first end (32) of the end cap (30) within the bore (12) in accordance with the extent to which the first end (32) is inserted axially into the bore (12).

Abstract: The invention concerns axial piston machines for installation in gearboxes and for detachable attachment thereto, having an machine housing open on one side, a connection block which closes this housing and has a pressure duct and an suction duct for the pressure medium, and a driving shaft rotatably mounted in the machine housing and the connection block, which drive shaft projects from the axial piston machine for the purpose of connection to a gear unit, the gearbox being capable of being closed by means of a gearbox cover, and having through apertures for the supply and discharge of the pressure medium to the pressure duct and suction duct.

Abstract: A fixed swash plate for an axial piston machine of fixed capacitive type, which has a casing housing therein a cylinder, is formed to have its divided surfaces on the horizontal plane along the axis of the rotary shaft of the cylinder, wherein a support member constituting a fixed swash plate is formed to be easy to produce and the casings merely sandwich therebetween the support member, whereby a thrust bearing constituting the fixed swash plate is held in the state of being slanted at a predetermined angle other than 90.degree. with respect to the axis of rotary shaft. Also, the rotation direction of the fixed capacitive type axial piston machine is easy to change by inverting at an angle of 180.degree. the assembling direction of support member constituting the fixed swash plate.

Abstract: 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 the hydraulic motor and pressurizes the charge oil so as to deliver oil at high pressure to a hydraulic actuator. The intensifier is of a self-contained and modular construction and includes a case which defines the oil reservoir and which is closed by detachable end caps permitting the motor and the low pressure pump to be pulled out of one end of the case and permitting the high pressure pump to be pulled out of the other end of the case.

Abstract: A hydrostatic transmission in which a hydraulic pump and motor are in a generally U-shaped arrangement with a fluid transfer manifold extending between the pump and the motor. The pump is driven on one side of the manifold by the drive motor of the vehicle on which the transmission is used, and a drive shaft from the motor extends through the manifold, to power the drive wheels on the other side of the manifold. A housing surrounds the pump, motor and manifold and contains hydraulic fluid for the operation of the transmission. Servo controls for the pump and motor are located on the outside of the housing, and a control cover has preloaded servo pistons which properly adjust the servo control when the cover is attached to the housing. A charge pump for the servo controls is in the manifold, and rigid tubular conduits extend between the charge pump and the control cover.

Abstract: A vehicle pressing cylinder, such as, for an automobile, installed between a master cylinder and the wheel cylinders thereof comprises a body defining three cylinders, e.g. a front cylinder, and right and left rear cylinders, the front cylinder having a larger bore than each of the right and left rear cylinders, a panel member covering one end of the body having passageways to concurrently direct brake fluid to each of the three body cylinders, and pistons reciprocably mounted in each of the three body cylinders. Means are provided repair any of the three body cylinders upon damage to brake lines and discrete warning means are provided to warn the vehicle operator of such damaged brake lines.

Abstract: The device comprises in a body a pressure limiting stage, a second stage constituting a fluid check and retarding valve and piloting means between these two stages. The second stage comprises regulating means which are easily accessible from outside the body. The device is particularly compact and is of high interest, for example when it is incorporated in a self-contained cylinder structure.

Abstract: The present invention relates to an arrangement to cool oil used in a hydraulic control system of an automatic transmission for an industrial vehicle. The hydraulic control system includes an operating pressure feed line, a pressure regulator valve to regulate the magnitude of pressure in the operating pressure feed line, feed passage means for feeding oil under pressure from the operating pressure feed line to a hydrokinetic torque converter, exhaust passage means for exhausting the oil from the torque converter, a pressure maintaining valve disposed in the exhaust passage means to maintain the magnitude of pressure within the torque converter to a predetermined level, and a lubricating oil feed line communicating with the exhaust passage means via the pressure maintaining valve and also with a lubricating oil port of the pressure regulator valve via a flow restrictor. The lubricating oil feed lines have two portions which may be subjected to cooling.

Abstract: A hydraulic power pack having a prime mover, at least one hydraulic pump, a reservoir and associated valving and hydraulic circuitry, in which each of the components is mounted on one of two parts of a frame. The two parts of the frame are hinged together at one side, thereby enabling the frame to be opened to allow access to the components for maintenance.

Abstract: A channel plate is provided for blocking transmission oil flow between two shift valves normally provided to effect automatic sequential shifting with changes in the pressure of the transmission oil. By inserting the channel plate, the gears in the transmission can only be shifted manually.

Abstract: Apparatus for fixing and driving a displacement member (such as a wheel) of a vehicle is disclosed. In particular, an axle journal is coupled to the vehicle chassis. At least one rotating bearing surface is disposed between the displacement member and the axle journal for the rotatable assembly of the displacement member. A drive motor is provided having a stator which is removably attached to the axle journal and a rotor which is removably mounted to rotate with respect to the stator by means of rotating bearings in contact with the bearing surface. Since the rotating bearings of the motor only contact the removable bearing surface, the motor can be dismantled while maintaining the displacement member in place on the axle journal.

Abstract: An electrically powered hydraulic winch has a main support containing a transmission connected on one side to a winch drum and connected on its other side to the output shaft of a hydraulic motor contained in a drive housing releasably bolted to the side of the support. A motor housing is fixed to the bottom of the drive housing and forms a fluidtight compartment containing a drive unit formed of an electric motor and a hydraulic pump, which latter is connected via a control unit in the drive housing to the hydraulic motor. A reservoir in the drive housing above the compartment maintains this compartment completely full of hydraulic fluid that is also used in the drive circuit between the hydraulic pump and motor.

Abstract: For tractors or like machines which can be provided, upon assembly, with either a hydrostatic transmission or a mechanical stepped-speed transmission, a transmission housing having a removable cover is provided. The machine has a drive shaft and a driven shaft and, according to the invention, a hydrostatic transmission is mounted intact upon the cover for introduction into and removal from the housing with this cover. The hydrostatic transmission comprises an inclined-disk variable-displacement pump whose input shaft is connected to the drive shaft and a hydraulic pump of the drive-flange type hydraulically connected to the pump and having an output shaft which is, in turn, connected to the driven shaft.

Abstract: A fluid coupling adapted to be attached to a pulley assembly which includes a pulley member and a hub having a set of external threads. The fluid coupling includes an output coupling member, an input coupling member rotatably disposed within a fluid chamber containing a volume of viscous fluid whereby torque is transmitted from the input coupling member to the output coupling member in response to relative rotation therebetween. The input coupling member includes an input shaft having a boss portion adjacent the rear surface of the output coupling member. The boss portion defines a set of internal threads for threaded engagement with the hub. The boss portion also defines a radial aperture and the output coupling member defines a slot disposed radially outward from the aperture and adjacent thereto.

Abstract: A torque converter comprises a vaned rotary impeller shell secured to the flywheel of a motor for driving the same, a vaned rotary turbine component secured to a turbine shaft which constitutes the output of the converter as a result of the torque conversion which takes place between the impeller and turbine vanes, and a vaned stator component located between the impeller and turbine vanes and which is coupled to a stator shaft surrounding the turbine shaft by means of a one-way clutch. In order to permit the one-way clutch to be easily removed, the impeller shell includes a removable hub portion secured by means of a ring of bolts to a flange on the impeller shell and this flange is dimensioned in such manner that its internal diameter is greater than the external diameter of the one-way clutch. Thus when the impeller hub is removed, the one-way clutch can be slid axially from its operating position and removed through the opening created by removal of the hub.

Abstract: The invention is concerned with an improvement in a motor-pump assembly for operating a hydraulic implement, said assembly including a hydraulic pump for controlling flow of a hydraulic fluid to said hydraulic implement and an electric motor for driving said pump. The improvement comprises means for coaxially aligning a driving shaft of the motor with the driven shaft of the pump, means for directly drivingly engaging said driving shaft with said driven shaft and means for fixing said pump to said motor. The invention is particularly concerned with the case wherein said hydraulic implement comprises a hydraulic lift cylinder for adjusting the height of a fork carrying carriage of a lift truck, controlling the tilt of the lift truck mast and controlling power steering functions.

Abstract: A rotary hydraulic actuator adapted to be mounted as on the stationary kingpin fixed on the deck of a self-unloading bulk cargo ship for slewing of a conveyor boom having its foot pivotally connected to oppositely extending horizontal trunnions on the actuator, said actuator being characterized by its unitized construction in which the gear housing is journalled on a gear keyed on said kingpin and which has pairs of parallel cylinders extending in opposite directions from the gear housing for actuating gear racks which mesh with said gear.