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Patent Searching and Data


Matches 501 - 550 out of 6,286

Document Document Title
WO/1994/018451A1
The invention concerns a radial-piston hydraulic motor equipment, which comprises a cam disc (12) of the radial-piston hydraulic motor (10), which cam disc is placed in a stationary position, the piston parts (15a1, 15a2...) and the rela...  
WO/1994/016221A1
A pressure-applying arrangement in a hydraulic axial piston machine is disclosed, having a pressure plate (7) and a piston (9) that is axially displaceable in a cylinder body (3), is biased by a spring (10) and acts against the pressure ...  
WO/1994/016218A1
A hydraulic piston machine is proposed, with a cylinder body (1), which comprises at least one cylinder (2) with a piston (3) movable therein, and a control counter-plate (7) which engages the cylinder body (1) by way of a contact surfac...  
WO/1994/016219A1
A hydraulic axial piston machine is disclosed, with a cylinder drum (2), which has at least one cylinder (3), in which a piston (6) is mounted so as to be axially displaceable, and with a control counter-plate (11) which, on rotation of ...  
WO/1994/015966A1
Growth differentiation factor-9 (GDF-9) is disclosed along with its polynucleotide sequence and amino acid sequence. Also disclosed are diagnostic and therapeutic methods of using the GDF-9 polypeptide and polynucleotide sequences.  
WO/1994/016224A1
A hydraulic axial piston machine is disclosed, having an inclined plate (7), on which a slider shoe (9) of at least one piston slides on relative movement between a cylinder body (2) receiving the piston and the inclined plate (7), and a...  
WO/1994/016217A1
A hydraulic machine with a piston and slider shoe unit (1) is disclosed, in which the piston (2) and the slider shoe (3) are joined to one another by way of a ball-and-socket joint (4) forming a first contact surface, and the slider shoe...  
WO/1994/015097A1
A device for controlling pressure in a cylinder chamber of a hydraulic pump motor, wherein a piston is inserted into a cylinder bore of a rotatable cylinder block to form a cylinder chamber, and said cylinder block is rotated, whereby a ...  
WO/1994/010452A1
An engine (1) for driving a piston arrangement (13, 14, 15) for pumping water from an inlet (26) to an outlet (27) at a higher level. The engine (1) includes a hollow housing (2) having an inlet (3) and an outlet (4) between which a liqu...  
WO/1994/008139A1
A hydraulic pump/motor as a hydraulic pump or hydraulic motor having a rotating type rotor characterized in that a rotor accommodating chamber having a circular cross section is formed in a housing, that a rotor is accommodated in said r...  
WO/1994/007028A1
A drive unit comprises a piston (11, 13, 15, 17) arranged to execute motion within a cylinder (3, 5, 7, 9). This defines a pressure chamber (19, 21, 23, 25) bounded by part of an internal wall of the cylinder and a face (35, 37, 39, 41) ...  
WO/1994/005912A1
In order to compensate in an efficient manner the radial and axial forces in a vane cell machine, and at the same time to increase its service life, the vane cell machine for liquids has a slotted rotor (1) mounted in a stator (4), and i...  
WO/1994/004824A1
A gerotor pump is made of extremely compact axial dimensions by using a shaft (30), which is neither fast with the pump body (10) nor journalled in the pump body (10). This is achieved by making the shaft fast with either or both of the ...  
WO/1993/014327A1
A hydraulic piston type motor having a rotating piston barrel (28) abutting a fixed porting plate (46) or head with a starting charge device (78) operating to supply a limited hydrostatic pressure between the porting plate (46) and rotat...  
WO/1993/004281A1
The invention relates to an axial piston motor with an adjustable absorption volume for fitting in a wheel hub, with a motor casing open on one side and closed off by a connection block, a drive shaft fitted so as to rotate in the casing...  
WO/1993/001394A1
A spring loaded biasing cylinder (100) on one side of an orbiting valve (14) is utilized to seal the orbiting valve to the manifold structure (21) on the opposing side of the valve to eliminate the necessity for physical seals therebetwe...  
WO/1992/021856A1
A rotary fluid machine including a rotor (2) provided with a plurality of lobes (7), a ring (1) surrounding the rotor and with the lobes defining a plurality of chambers (9), a housing (2) surrounding the ring and provided with a plurali...  
WO/1992/010677A1
A motor or pump assembly (1) comprises a cylinder block (4) with a plurality of radially positioned cylinders (3), a piston (2) arranged slidably reciprocable in each of the cylinders, a cam ring (7) cooperating with the pistons and bein...  
WO/1992/010676A1
A motor or pump assembly (1) comprises a cylinder block (4) with a plurality of radially positioned cylinders (3), a piston (2) arranged slidably reciprocable in each of the cylinders, a cam ring (7) cooperating with the pistons and bein...  
WO/1992/008892A1
The object of the invention is a radial piston eccentric motor/pump, which consists of a ring structure (1') and an axle (7) as an opposing member rotating in relation to it in bearings, a joint ring formed of first joints (13') and set ...  
WO/1992/008049A1
This gerotor-type hydraulic motor operates at two speeds (low speed, high torque and high speed, low torque) at a given flow rate and pressure of driving hydraulic fluid. It includes first and second rotating power elements disposed alon...  
WO/1992/000455A1
An adjustable rotor and a radial piston machine which may utilize an adjustable rotor. The rotor has a primary eccentric (2) rotatable with a shaft (1) and a secondary eccentric (3) adjustable in position relative to the primary eccentri...  
WO/1991/018204A1
A hydraulic drive device, especially for robot arms with several joints, has as the power drive an axial-piston hydraulic motor (13) in which the pressure medium supply is controlled by a follow-up servo valve (14) and there is an electr...  
WO/1991/016540A1
The device is a radial reciprocating engine with a built in synchronizing mechanism, which is designed thus that the two rotating main parts of the machine, the centre shaft (1) and the outer rim (2), by means of two cam rollers (24 and ...  
WO/1991/010831A1
A fluid motor is disclosed that has a housing with a body portion (10) formed as a hollow circular cylinder. A series of peristaltic tubes (30) are disposed in the housing with one end of each tube leading from an inlet manifold (19) on ...  
WO/1991/005966A1
Hydraulic circuit for limiting the torque of a hydrostatic hydraulic motor (2) connected in closed circuit to a hydraulic pump (1), which in braking mode operates as a hydraulic pump, in which pressure-control valves (6, 7, 8, 9) are con...  
WO/1990/012970A1
A hydraulic motor equipped with a reduction gear wherein the lubricating oil in the gear case is cooled to improving the lives of the sealant and the bearing. Said motor is provided with a pair of supply/discharge ports (18, 17) for circ...  
WO/1990/009510A1
The present invention provides a motor suitable for use in down-hole drilling applications. The motor is a wing motor and comprises a generally tubular casing (1, 2) and a rotor (4) mounted for rotation therein and substantially radially...  
WO/1990/007632A1
A power conversion machine comprising a rotor assembly having a first rotor part (124) with a first pair of pistons (137, 138) and a second rotor part (125) with a second pair of pistons (135, 136) which are rockable back and forth in re...  
WO/1990/007059A1
A hydraulic axial piston motor or pump (8) of the type in which a rotor (10) has an odd-numbered plurality of cylinder ports (30) with which the arcuate ports (40, 42) of a port plate (36) successively register. The port plate (36) is pr...  
WO/1990/006443A1
A machine for converting pressure energy of a fluid into mechanical work comprises a working chamber (27, 28) the volume of which is cyclically variable in response to reciprocatory motion of a wall (20) which defines the working chamber...  
WO/1990/004101A1
This invention relates to a variable capacitance, oblique spindle type hydraulic machine which supports the reaction of oil pressure acting on a cylinder block (8) by a radial static pressure bearing (23) or by a thrust static pressure b...  
WO/1990/001637A1
The rotor (18) of an axial piston engine (10) is connected to the engine shaft (16) so as to remain fixed during rotation and during sliding and is supported on the engine housing (91) without play in the axial direction. The cross-secti...  
WO/1989/011593A1
This invention relates to a main bearing device for the motor of a bent axis type axial piston pump constructed in such a fashion that the sum of a thrust load and a radial load acting on first and second bearings disposed in a tandem ar...  
WO/1989/010487A1
A roller-blade hydraulic machine comprises a hollow casing (1) with channels (2, 3) for the inlet and outlet of the working medium. The casing (1) is provided with recesses opening toward the hollow of the casing (1), inside which are pl...  
WO/1989/006604A1
An apparatus for mounting and demounting tyres on to and from a rim, respectively, comprises a device (14) for turning the rim, designed as a pneumatic motor with a rotor and a stator having radially disposed piston and cylinder units an...  
WO/1989/006216A1
A rotator for crane-mounted working implements comprises a housing (7) swingably connectible with the tip of the crane via a joint, and a pivot shaft (8) connectible with the working implement and pivotal relative to said housing by mean...  
WO/1989/002515A1
A gearwheel motor has two mutually engaged externally toothed wheels (14, 15) against the side surfaces of which is pressed a sealing plate (26) by means of two approximately concentric compression fields (A, B). The two compression fiel...  
WO/1989/002032A1
The motor described comprises a casing (1) containing a stack of piston chambers (35) incorporated between a basic piston chamber (2) and a sealing block (3-5). The annular space between the casing and the piston chamber is divided into ...  
WO/1988/009872A1
Motor apparatus which converts hydraulic energy and change of state expansion energy to mechanical energy. The motor (10) includes a main chamber (32) divided by a piston (34) into a charging chamber (36) and an exhaust chamber (38) duri...  
WO/1988/007133A1
A variable-capacity hydraulic motor capable of being mounted simply on a power shovel without interfering with or projecting outward from a truck frame, and capable of being manufactured easily. The variable-capacity hydraulic motor (M')...  
WO/1988/003992A1
A variable-capacity piston machine having a valve plate (3) provided with a high-pressure port (5) and a low-pressure port (6) used to supply and discharge a fluide into and from a piston chamber (80) in a cylinder block (2), and first a...  
WO/1988/001348A1
The hydromechanical drive consists of three main parts: hydraulic drive cylinders (2), a regulator and a gear box (6). In applying the drive cylinders (2) and the regulator these are showing a completely new principle deviating of all co...  
WO/1987/005972A1
A piston engine, in particular a radial piston engine, is provided with a housing (1) containing movable pistons (8) and a drive shaft (3) carried on a bearing in said housing. The drive shaft is provided with a second bearing designed a...  
WO/1987/003927A1
Conventional rotary-vane hydraulic actuators require external pressure sources. The hydraulic actuator (35) disclosed utilizes the centrifugal head developed in its pressure chambers (52, 54) when the entire actuator (35) rotates as a so...  
WO/1986/006787A1
A high torque, low speed hydraulic motor with radial slots (14) formed in the inner face of a housing forming working chambers; lobed rotors (22) have lobes (23) meshing with each chamber in turn as a drive element, on which the rotors (...  
WO/1986/005554A1
A hydraulic motor, in which a rotating motion is generated by a combined effect of a cam ring (2) and roller means (6) connected to the pistons (5) of a cylinder group (3). The object is to provide a new dummy coupling solution for a mot...  
WO/1986/004638A1
Apparatus (20) responsive to fluid pressures and capable of providing fluid under pressure to provide a unit which may selectively be used as a fluid motor or a fluid driven motor pump unit depending upon fluid directing and control stru...  
WO/1986/003547A1
Unitary cage assembly (52) annularly positioning a plurality of rollers (36) in a pair of roller bearings (32 and 34) supporting a cradle swashplate (24). By utilizing the unitary cage assembly, a parallel relationship between the roller...  
WO/1986/002128A1
The pinion motor has two pinions which engage on their external sides (14, 15) the shafts of the pinions being supported on both sides in bearings (18 to 21). The bearing elements (19, 21) on one side of the pinions are designed with a l...  

Matches 501 - 550 out of 6,286