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Match Document Document Title
8182250 Gerotor motor and brake assembly  
A hydraulic device includes a gerotor assembly, a wobble stick, an output shaft, a housing assembly, first and second ports, first and second brake disks, a piston, and a biasing member. The...
8157552 Rotary fluid pressure device and improved parking lock assembly therefor  
A rotary fluid pressure device (11) includes an end cap (23) which is disposed rearwardly of, and adjacent, the fluid displacement mechanism (21). The end cap defines a piston cavity (103) in which...
8128389 Positive-displacement machine design (variants)  
In the first variant, the device comprises a stator and a rotor eccentrically mounted in the stator. A planetary train consists of large and small gear wheels. The large gear wheel is fixedly...
8096795 Oil pump rotor  
An oil pump rotor for use in an oil pump includes an inner rotor having (n: “n” is a natural number) external teeth, an outer rotor having (n+1) internal teeth meshing with the external teeth, and...
8037862 Simplified multifunction component rotary engine  
An internal combustion rotary engine has a chamber defined by a chamber wall and a rotor valve body in three locus-sealing contact with the chamber wall to define a series of three subchambers...
7963754 Hydraulic machine  
The invention concerns a hydraulic machine with a set of teeth, having a toothed ring with an inner toothing and a gear wheel with an outer toothing, the gear wheel rotating and orbiting in the...
7959422 Oil pump and method of assembling the oil pump  
An oil pump including a first housing having a rotation shaft insertion hole, a cam ring, a pump element, a rotation shaft rotatably extending through the rotation shaft insertion hole, a second...
7913663 Rotary piston machine  
A rotary piston machine 10 includes an enclosure 12 having a cavity 14 therein with arcuate side walls 16a,b,c defining a plurality of arcuate recesses 18a,b,c and a piston member 20 rotationally...
7887309 Gear pump having optimal axial play  
The invention relates to a pump, in particular an oil pump, for internal combustion engines, comprising a pump case, with the pump case comprising a pump lid and a pump flange, with at least one...
7857606 Variable displacement pump  
A variable displacement pump includes a pump body defining first and second pools for introducing fuel/lubricant oil, and internal and external rotary members rotatably mounted on the pump body and...
7845919 Brake releasing mechanism and brake system  
An embodiment of a gerotor apparatus includes a housing including a first member. The first member includes a brake pin aperture formed therein. The apparatus also includes a brake pin at least...
7845920 Oil pump  
An oil pump in which pulsation vibration due to the dynamic pressure on the discharge port side can be attenuated. In an oil pump for transporting fluid from a suction port to a discharge port by...
7837453 Device for driving an oil pump in a transmission  
A device (1) for driving an oil pump (2) for a transmission of a motor vehicle, having a pump housing (4), a transmission housing (3), a pump shaft (8), and a gear shaft (13), which is in...
7832996 Hydrostatic rotary cylinder engine  
The invention relates to a hydrostatic, slow-speed rotary cylinder engine comprising a power part (1) which acts as an output, said power part comprising a central, stationary stator (4), a rotary...
7832997 Variable capacity gerotor pump  
A variable capacity gerotor pump includes an inner rotor that is axially displaceable with respect to the outer rotor to vary the volumetric capacity of the pump. An active piston abuts the lower...
7799074 Rotary displacement pump with smaller radial dimensions  
According to the invention the rotary pump consists of an external gear (13) with internal teeth (16) in the form of a squirrel cage, and an internal gear (9), housed in an off-centre manner in the...
7755237 Motor for driving a container-holder plate in a labelling machine  
A motor for a plate of a labelling machine comprises a housing with a connecting portion for connecting the motor to a carousel of the labelling machine, a motor shaft pivotally supported within...
7726958 Hydraulic machine  
A hydraulic machine has a gear wheel (2) with outwardly extending teeth and a gear ring (4) with inwardly extending teeth formed by rollers each of which is supported in a pocket (8) in the gear...
7722342 Pump apparatus and power steering  
In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion...
7704061 Oil pump  
An oil pump includes pump chambers each having a volume varied by engine drive and for pressurizing oil inhaled through an inlet port and discharge it through an outlet port, and a branch passage...
7698818 Method for assembling precision miniature bearings for minisystems and microsystems  
The aim of the invention is to obtain a cost-effective solution for providing a microsystem with bearings, which have sufficiently high precision and long-term stress resistance. The invention...
7695258 Gerotor motor and brake assembly  
A hydraulic device includes a gerotor assembly, a wobble stick, an output shaft, a housing assembly, a first port in the housing assembly, a second port in the housing assembly, first brake disks,...
7695259 Rotary fluid pressure device with modular multi-speed control mechanism  
A rotary fluid pressure device (11) includes a plate assembly (17) having a plate member (71) and at least one cover plate (105), which defines a mounting surface (107) adapted for sealing...
7669577 Gerotor and method of assembling the same  
A gerotor and methods for assembling the gerotor are disclosed. The gerotor includes a pump housing having a channel and a rotor positioning cavity, a pump shaft, an inner rotor, and an outer...
7637725 Variable output gerotor pump  
A variable output gerotor pump includes outer and inner driven and driving rotors and an annular output control ring which is rotatable within a bore mounted within the pump's body so as to change...
7618247 Progressive staged flow to precompress the pump internal volume/volumes to be displaced  
Besides the conventional pump timing in rotary hydraulic devices, a series of constant and variable restrictions have been applied to condition the pressurized flow used to internally precompress...
7559754 Internal gear pump in combustion engine  
An internal gear pump (39) of the present invention includes an inner rotor (49) relatively non-rotatably mounted on one end of a pump shaft (22) driven by a crankshaft (9), and an outer rotor (50)...
7553138 Rotary screw machine of volume type and method of transforming a motion in a volume screw machine  
The invention relates to a rotary screw machine of volume type comprising a body (30) having a main axis X, two members (10, 20), wherein a first one (20) surrounds a second one (10). Said first...
7530801 Bi-directional disc-valve motor and improved valve-seating mechanism therefor  
A rotary fluid pressure device (11) has a stationary valve member (17), a rotatable valve member (51), and a valve seating mechanism (73). The valve seating mechanism (73) defines an outer balance...
7500837 Small size gear pump  
A small size gear pump having a disc-shaped case, inside which a flat cylindrical motor rotor chamber, a bearing chamber and a flat cylindrical gear chamber are arranged eccentrically from the...
7488163 Trochoid oil pump  
A trochoid oil pump, which enables the endurance to be increased and the reduction of discharge pulsations and noise to be achieved, and in which those results can be realized with a very simple...
7481633 Rotor with cut-outs  
A gerotor device having a rotor and a stator, the rotor including a plurality of teeth defining a profile, each tooth being divided by a tooth axis. At least one tooth includes an inner recess and...
7467934 Axial piston engine with integrated filling pump  
The invention relates to an axial piston engine with a filling pump integrated in a receiving bore of the axial piston engine, which filling pump comprises a gerotor set with an externally toothed...
7434563 Rotary engine  
The rotary engine includes a cylinder body having a cylinder chamber, an intake port, an exhaust port, and a spark plug, and a rotor which is received in the cylinder chamber to eccentrically...
7435066 Oil pump  
The present invention provides an oil pump in which eroding of the inside of the pump due to cavitation and erosion is prevented by minimizing the pressure change in a fluid when inter-tooth spaces...
7413424 Gear pump and holding element therefor  
The gear pump unit (100) comprises a pump cover (1), an internal rotor (16) mounted rotatably in a recess (9) of the pump cover (1) and formed in a rotationally fixed manner on a driven plug-in...
7407374 Hydraulic machine  
The invention concerns a hydraulic machine with a toothed set comprising a toothed ring with an inner toothing, whose circumferential surface extends in parallel with its axis, and a gear wheel (3)...
7384251 Trochoidal oil pump  
A trochoidal oil pump which makes it possible to achieve an improved reduction in discharge pulsation and noise, and which makes it possible to realize such a reduction using an extremely simple...
7322808 Balancing plate—shuttle ball  
A pressure compensation mechanism for a gerotor motor is disclosed, which mechanism includes a shuttle valve that selectively interconnects either port to a single pressure chamber and thus to...
7287969 Rotary fluid pressure device and improved brake assembly for use therewith  
A rotary fluid pressure device defining a fluid inlet (17), an output shaft (37), and a housing (41,43) defining a brake chamber (61), a piston member (63,65) being disposed therein and biased...
7255544 Housing including shock valves for use in a gerotor motor  
A housing for a motor having fluid passages integrated within. The passages include a first passage for receiving a fluid from outside the motor, a second passage for directing the fluid away from...
7220111 Hydraulic pump  
A fluid pump includes a housing having a lateral wall and an end wall, an insert located in the housing surrounded by the lateral wall and including a body having a central aperture and inlet and...
7156628 Wobblestick with helix  
A wobblestick with driving teeth with a helix which is equal to or less than 1° of the running angle of the wobblestick.
7147445 Turntable with turning guide  
A gerotor mechanism is used to guide the rotation of a turntable having a Reuleaux triangle shape. In one version, the mechanism includes a gerotor having three lobes, and the gerotor guide has a...
7137797 Turntable with gerotor  
A gerotor mechanism is used to guide the rotation of a turntable having a Reuleaux triangle shape. The mechanism includes a gerotor having three lobes; the gerotor guide has a guide profile...
7070402 Integrated speed reducer and pump assembly  
An integrated speed reducer and gerotor pump is disclosed. The device comprises a motor, a speed reducer, and a gerotor pump. The motor provides torque at an elevated speed. The speed reducer is...
7052256 Synchronized transaxle hydraulic motor  
A dual shaft gerotor motor (11) of the type comprising a gerotor gear set (13) including an internally-toothed ring member (15) and an externally-toothed star member (17). The motor (11) includes...
6986304 Hydraulic torque motor with cable feedthroughs as well as a crane with such a torque motor  
A hydraulic rotating motor for the driving mechanism of electricity consumers. The rotating motor preferably has revolving working pressure chambers, which are acted upon by hydraulic fluid for...
6983729 Rotary piston machine  
A rotary piston machine having a housing defining a prismatic chamber the cross section of which forms an oval of odd order. A rotary piston is guided in the chamber and, in each position,...
6968823 Rotary internal combustion engine  
A rotary engine is provided that comprises a compression cylinder and combustion cylinder divided by a separation wall. Air or a fuel/air mixture is drawn into the compression cylinder, compressed,...
Matches 1 - 50 out of 463 1 2 3 4 5 6 7 8 9 10 >