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7628129 |
Camshaft, method of manufacturing cam for camshaft, and method of manufacturing shaft for camshaft
A method of manufacturing a cam for a camshaft, comprising the steps of continuously applying, to a billet having a volume larger by a specified volume than a final product, a plurality of cold...
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7627949 |
Motorcycle engine
In order to increase the displacement of a motorcycle engine, the existing cylinder block of the engine is dismounted from its crankcase, and the existing piston is dismounted from its connecting...
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7621250 |
Cutting tools and roughened articles using surface roughening methods
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while...
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7621245 |
Camshaft
The present invention relates to a camshaft ( 1 ) for more preferably motor vehicle engines with a termination element ( 2 ) arranged with an axial end side in or on the camshaft ( 1 ) and...
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7621244 |
Titanium alloy tappet, manufacturing method thereof, and jig used in manufacturing tappet
A titanium alloy tappet that is slidable at a high speed is provided by covering shortcomings of lightweight and high-strength titanium alloy. A surface 1 A of at least a slidable portion of the...
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7617805 |
Cylinder liner and method construction thereof
A cylinder liner for receipt in an internal combustion engine cylinder block having a water cooling jacket surrounding a portion of the cylinder liner and method of construction thereof. The...
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7617605 |
Component geometry and method for blowout resistant welds
In a method for reducing “blow-out” of annular welds for attaching components in a fuel injector, a relief region is formed on radially-facing surfaces of the components. The relief region is...
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7614848 |
Fan exit guide vane repair method and apparatus
A replacement fan exit guide vane assembly for installation between an inner case and an outer case of a gas turbine engine includes an airfoil structure having an outer end and an inner end, a...
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7614374 |
Rolling bearing for rocker arm
A rolling bearing for a rocker arm includes an outer ring in rolling contact with a cam of an engine, an outer-ring shaft placed inside the outer ring and fixed to the rocker arm, and a plurality...
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7614338 |
Piston, method of producing the piston, and pump having the piston
A piston 1 which is to be movably supported in a cylinder 11 of a pump 10 to be reciprocally driven is formed by a fluororesin so that it is not impaired by a corrosive liquid. A cylindrical...
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7610890 |
Camshaft with cams that can be rotated in relation to each other, especially for motor vehicles
The aim of the invention is to provide a reliable and inexpensive camshaft wherein the inner shaft and the outer shaft can be adjusted in a low-friction manner. For this purpose, a camshaft with...
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7610677 |
Method for manufacturing a throttle valve unit
A method for optimizing the friction, wear, and function of an injection-molded throttle valve unit, including a throttle valve housing and a throttle valve that can move in relation to it. The...
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7607903 |
Stator tube removal and installation device
An apparatus for removing a stator tube from a position about a rotor of a progressing cavity pump is provided. The apparatus includes an actuator assembly having a base and a piston which is...
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7607901 |
Wear rings for downhole pump
A downhole pump for a well has a barrel and a plunger. The barrel has a passage extending along the length of the barrel, with the passage having an inside diameter. The plunger has an outside...
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7607384 |
Piston for an axial-piston engine of the inclined-axis type and process for manufacturing such pistons
A piston ( 2 ) for a piston engine, in particular for an axial-piston engine ( 1 ) of the inclined-axis type, comprises a conical section ( 26 ), a neck region ( 19 ) and a ball end ( 9 ) which is...
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7600983 |
Radial plunger pump and method for manufacturing pump housing
A pump housing supporting a driving shaft has a plurality of cylinder bores extending radially and arranged at substantially regular intervals around an outer periphery of the driving shaft. Each...
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7600498 |
Internal combustion engine with gas exchange valve deactivation
An internal combustion engine with selectively deactivated intake and/or exhaust valves includes a fulcrum plate having a through hole with a slidable plunger supporting a pivot ball that engages...
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7597078 |
Camshaft
The present invention relates to a camshaft ( 1 ) having cams ( 3 and 4 ) rotatable with respect to one another about the camshaft axis ( 2 ) over limited circumferential angles, whereby an...
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7594467 |
Internal combustion engine with improved thermal efficiency
An internal combustion engine includes a piston adapted to reciprocate in a cylinder. The piston includes a first portion, a second portion, and a third portion. The first portion of the piston...
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7588397 |
Method and apparatus for machining crankshafts or camshafts
An apparatus and method are provided for performing multiple machining operations on a workpiece such as a crankshaft. Oil holes may be drilled in a crankshaft by a tool shifted along a curved path...
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7588006 |
Bearing between two coaxial camshafts for automotive engines in particular
A camshaft for automotive engines in particular having contra-rotating cams capable of rotating over a limited circumferential angle about the camshaft axis in which
an inside shaft ( 2 )...
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7584732 |
Shaft-mounted rocker arm arrangement
The present invention is a shaft-mounted rocker arm arrangement for an internal combustion engine which provides simplified assembly and disassembly by allowing individual rocker arms to be added...
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7584693 |
Bottomed cylindrical piston and method of manufacturing bottomed cylindrical piston
By forging a metal material, there is formed a dustproof boot 20 in which a side of an opening end portion 20 b formed with a groove 34 for a dustproof boot is provided with a diameter...
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7581316 |
Vane-type camshaft adjuster
In a camshaft adjuster for an internal combustion engine including a housing, with two side cover sections and a middle jacket section arranged between the side cover sections and a rotor disposed...
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7581315 |
Connecting rod assembly for an internal combustion engine and method of manufacturing same
The present invention relates to a connecting rod assembly and method of manufacturing same. The method includes defining a small end of a connecting rod having a terminal end and defining a pin...
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7578229 |
Piston produced from a single forged or cast piston blank
A piston and method of making a piston which involves providing a single piece piston blank that, after casting or forging, is separated into separate upper and lower portions. The upper portion is...
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7575415 |
Methods and apparatus for assembling turbine engines
A method for assembling a gas turbine engine is provided. The method comprises coupling a first turbine nozzle within the engine, coupling a second turbine nozzle circumferentially adjacent the...
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7574795 |
Method of manufacturing connecting rod
To manufacture a connecting rod including positioning grooves having a function of positioning a bearing metal at low cost. A big end part of a split type connecting rod is fractured in two after...
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7568273 |
Surface roughening method
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while...
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7565729 |
Methods of manufacturing a segmented brush seal for sealing between stationary and rotary components
A method of forming brush seal segments includes mounting a pair of full form plates having opposite arcuate edges in back-to-back relation and wrapping wire about the form plates in multiple...
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7562647 |
Inlet valve having high temperature coating and internal combustion engines incorporating same
An inlet valve is partially coated with a protective coating to resist corrosion and gas impingement when used in an internal combustion engine. The inlet valve has a hard cladding that is shaped...
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7559306 |
Double-layer lubrication coating composition, double-layer lubrication coating and piston having same coating
A double-layer lubrication coating composition is made up of an upper-layer coating composition and a lower-layer coating composition. The upper-layer coating composition is made up of 50 to 70 wt...
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7559301 |
Valve lash adjustment and inspection apparatus
An apparatus and method for automatically adjusting the valve lash of an internal combustion engine is provided. In another aspect of the present invention, a probe is employed for verifying and/or...
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7559141 |
Torsional vibration damper
In order to adapt the damping behavior at a wider range in a process for damping torsional vibrations and in a torsional vibration damper, the length of an elastic element can be changed in...
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7556011 |
Valve structure for internal combustion
A sealing region where a valve seat and an outer peripheral surface of a enlarged diameter portion of a flare portion are contacted to each other is configured so that an end on a side opposite a...
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7556006 |
Valve mechanism of engine
To provide an inner shim that is unlikely to fall off from a spring retainer even when an anomalous operation of a valve occurs. A spring retainer fixed to the upper end portion of a valve shaft...
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7555837 |
Spray coating method and spray coating device
A cylinder block has at least two cylinder banks each having cylinder bores arranged in at least two directions relative to an axis for a crankshaft. A rotator on which the cylinder block is...
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7553143 |
Lobe pump system and method of manufacture
A method of manufacturing a rotor to be used in a dual-rotor lobe pump system for pumping a material at a periodic rate is provided. The method includes selecting a desired periodic flow rate for...
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7552911 |
Multipart composite valve for an internal combustion engine
A multipart composite valve for an internal combustion engine, in which a valve shaft ( 2 ) and a valve plate ( 4 ) are embodied separately while being joined together in an overlapping area ( 6 )....
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7546823 |
Variable overhead valve control for engines
A valve control mechanism is provided for an overhead valve, internal combustion engine having a camshaft moving a pushrod to move a rocker arm that in turn moves the valve. Three aligned rollers...
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7540726 |
Scroll compressor and method for machining scroll wrap
By cutting-machining a side face of a scroll wrap with a non-rotational tool, swells in the perimeter direction have a smaller size. Thus, compressed gas is prevented from leaking between...
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7540470 |
Powdered metal inlay
Hot-isostatic-pressure (HIP) is used to make substantially nonporous cemented carbide inlays on metal substrates. A radiused shell preform typically comprising at least one metal carbide and at...
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7540267 |
Engines with variable valve actuation and vehicles including the same
An engine includes a camshaft with outer and inner elongate members. The outer elongate member can include a lobe that actuates a valve. The inner elongate member can be axially disposed within a...
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7536945 |
Piston pin for a combustion engine and method for its manufacture
A piston pin for connecting the small connecting rod eye of a connecting rod to a piston of a combustion engine and a method for manufacturing the piston pin. The piston has boss bores aligned with...
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7533646 |
Balancing shaft for an internal combustion engine and a method for the production thereof
The invention relates to a balancing shaft for an internal combustion engine and to a method for the production thereof. In this case, the balancing shaft consists of a tubular hollow body and...
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7530156 |
Lamination cooling system formation method
An electric motor, transformer or inductor having a cooling system. A stack of laminations have apertures at least partially coincident with apertures of adjacent laminations. The apertures define...
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7516546 |
Method of manufacturing a connecting rod assembly for an internal combustion engine
The present invention relates to a method of manufacturing a connecting rod assembly having a stepped small end. The method includes defining a small end of a connecting rod assembly having a...
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7513237 |
Engine and methods of manufacturing an engine with increased internal support
Support members for a reciprocating piston internal combustion engine are disclosed. Embodiments include an engine block with support members extending between portions of the cylinder cavity...
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7513039 |
Method of making a double-screw extruder
To form the housing of a double-screw extrude, the housing body or a segment thereof is provided with auxiliary bores along a segment of the housing at which the hardening material is to be thicker...
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7507147 |
Method for machining rotary parts
In a method for machining rotation pieces, including at least one working step, and wherein at least one surface of the workpiece which is clamped in the device is subjected to a grinding step, at...
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