Cams Patents (Class 74/567)
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Patent number: 8720055Abstract: The instant invention relates to a cam shaft for internal combustion engines of motor vehicles, which is supported on a cylinder head housing via at least one roller bearing, wherein provision is made for at least one thrust bearing, which supports the cam shaft in axial direction and which is embodied as ball or also as roller bearing.Type: GrantFiled: June 12, 2012Date of Patent: May 13, 2014Assignee: Mahle International GmbHInventors: Thomas Flender, Michael Kreisig, Falk Schneider
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Patent number: 8720289Abstract: A loading machine for feeding a receiver includes, but is not limited to, a drum cam that is configured to rotate. The drum cam includes, but is not limited to, a first cam path, and a second cam path. A rammer subassembly is positioned proximate the drum cam. The rammer subassembly includes, but is not limited to, a first member that is configured to engage the first cam path and to move longitudinally with respect to the drum cam upon a rotation of the drum cam, and a second member that is configured to telescopically engage the first member and further configured to engage the second cam path and telescopically move with respect to the first member upon the rotation of the drum cam.Type: GrantFiled: January 5, 2011Date of Patent: May 13, 2014Assignee: General Dynamics Ordnance and Tactical Systems, Inc.Inventors: William E. Howard, Robert C. Hinkley, Victor J. Forrester
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Publication number: 20140116197Abstract: A driving device has a driving cam driven by a motor around a cam shaft, a roller which is in contact with the driving cam, a supporting frame, and a control shaft. The driving cam has a pocket portion. At the pocket portion, a profile distance from a center increases or decreases when the driving cam rotates in a normal direction or a reverse direction. When the pocket portion is in contact with the roller and the motor is stopped, the rotational force of the driving cam becomes zero. The rotational position of the driving cam and the axial position of the control shaft are held at a constant position. Thereby, the rotary place of the driving cam and the axial position of the control shaft component can be held in a fixed position.Type: ApplicationFiled: October 23, 2013Publication date: May 1, 2014Applicant: DENSO CORPORATIONInventors: Yuuya TAKAHASHI, Yasuyoshi SUZUKI, Toshihiro TAKAHARA, Shinichi SUGIURA, Atsushi ITO
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Patent number: 8695480Abstract: In a device for driving a piston pump, including at least one cam (10) mounted on a camshaft (4) and cooperating with the pump piston (3), or a component arranged between the cam (10) and the pump piston (3), to generate a reciprocating movement of the pump piston (3), wherein the cam (10) has a cam elevation curve (15, 18) with a first section for the upward stroke and a second section for the downward stroke, the cam elevation curve (15, 18), departing from a shape substantially corresponding to that of a sine wave (14, 19), is modified in a manner that, in comparison to the shape of a sine wave (14, 19), an increase in the piston acceleration occurs at the beginning of the upward stroke and a decrease of the piston deceleration occurs at the end of the upward stroke.Type: GrantFiled: March 19, 2008Date of Patent: April 15, 2014Assignee: Robert Bosch GmbHInventor: Martin Bernhaupt
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Patent number: 8696208Abstract: A device for vehicle brakes, such as truck brakes actuatable by an S-cam, and of the type having a camshaft support bracket. The device includes an S-cam shaft, and the S-cam shaft has a shaft and an S-cam provided on an end of the shaft. The device includes a mounting adapter bracket, and a bushing support tube. The mounting adapter bracket is configured for supporting the bushing support tube on the camshaft support bracket of the vehicle. The bushing support tube is configured for receiving the S-cam shaft in it. There are a number of modular bushings provided in the tube, and each of the modular bushings is spaced apart along the length of the tube. The shaft extends through the modular bushings and is supported by them.Type: GrantFiled: March 8, 2012Date of Patent: April 15, 2014Inventors: Chris Alan Everline, Drew H. Larsen
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Patent number: 8684704Abstract: A first aspect of the invention includes a multi-stage gas compressor having a central cam with a plurality of pistons operably connected to and radially extending from the central cam. The cam follower assemblies each include a roller element connected to a roller bracket which rides within and along a guide channel defines by facing grooves formed in housing end plates.Type: GrantFiled: December 19, 2008Date of Patent: April 1, 2014Assignee: Carleton Life Support Systems, Inc.Inventors: Timothy Raleigh, Sammy Mickelson, Robert Francois, Scott H. Harvey, Kevin Hurley
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Patent number: 8668466Abstract: A variable displacement reciprocating pump with pumping rate that is adjustable from zero to maximum stroke while the pump is running. Stroke is varied by changing relative position of pairs of eccentric inner and outer cams that drive the pump's plungers. The pump's input drive shaft drives two gear trains: a first gear train that turns the inner cams and a second gear train that turns the outer cams. These cams normally revolve together with no relative motion occurring between them. A rotary actuator is positioned in the first gear train to rotate the inner cams relative to the outer cams and thereby changes the pump's stroke. A computerized system of sensors and control valves allows the pump to be automatically controlled or limited to any one or combination of desired output flow, pressure and horsepower.Type: GrantFiled: October 11, 2010Date of Patent: March 11, 2014Assignee: Serva CorporationInventor: Thomas E. Allen
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Patent number: 8661937Abstract: A cam apparatus of a suspended cam type includes a cam driver 2 having a sliding surface 9; a cam slide 3 which is moved with its sliding surface 28 in contact with the sliding surface 9 of the cam driver 2; a cam-slide supporting means 4 for supporting the cam slide 3 movably in an A direction; and a returning mechanism 5 for returning the cam slide 3 to its rear initial position in the A direction of that cam slide 3.Type: GrantFiled: May 23, 2008Date of Patent: March 4, 2014Assignee: Oiles CorporationInventor: Takayuki Miyaji
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Patent number: 8656877Abstract: A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft rotatably supported between the cam housing and the cam cap, the camshaft supporting a cam; a rocker arm configured to be pushed by the cam; and a valve configured to operate by being pushed by the rocker arm; and an oil pipe that is formed integrally with the cam cap. Lubricant oil is supplied through the oil pipe to a contact point between the cam and the rocker arm.Type: GrantFiled: October 12, 2010Date of Patent: February 25, 2014Assignee: Otics CorporationInventors: Naoki Hiramatsu, Masahide Sakurai
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Publication number: 20140041984Abstract: The pivot control mechanism that selectively controls the rotation of the pivot control shaft by an electric impulse from the solenoid, which locks the pawl into the ratchet, thereby permitting the shaft to rotate in a selected direction. When a passage direction is chosen, the cam followers move out of the home position of the lofted ratchet over the peak position to the next home position. The guiding pins controlling the axial motion of the lofted ratchet in conjunction with the compression springs secure the cam followers in the home position. The shock absorber acting on the cam is used to prevent the turnstile from over rotating with any great amount of force, hence softening the return of the cam followers to the home position. The micro switch is activated, sending a signal to the control board, which through the action of the solenoid, locks the pawls into the ratchet.Type: ApplicationFiled: August 13, 2012Publication date: February 13, 2014Inventor: George Jiri Balastik
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Patent number: 8627734Abstract: A prestressing unit which has a first ramp disk and a second ramp disk. Ramp contours are formed in one side of an annular face of the ramp disks. In the prestressing unit, the rolling bodies ascend and/or descend on the ramp contours as a result of rotational pivoting of one of the ramp disks in relation to the other ramp disk about an axis. The ramp contours are each formed as a single-part running face for the rolling bodies. The running face is inclined with respect to the axis.Type: GrantFiled: April 14, 2009Date of Patent: January 14, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Harald Martini, Fritz Wiesinger
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Publication number: 20140007736Abstract: The invention relates to a shaft, particularly a cam shaft (1), comprising a hollow shaft section (10) with at least one inlet opening (11a, 11b) for evacuating a gas through said hollow shaft section (10), and comprising a splash-guard device (4) arranged in the region of the radial inlet opening (11a, 11b) on the hollow shaft section (10). According to the invention, the splash-guard device (4) has a radially exposed cover with radial passage openings (8) and protrusions between said passage openings (8). The protrusions can, in particular, be in the form of ribs (9). To be published with FIG. 3.Type: ApplicationFiled: February 2, 2012Publication date: January 9, 2014Inventor: Ulf Mueller
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Publication number: 20130333513Abstract: One embodiment of the present invention relates to an improved smaller-active camming device including a head member, a plurality of cam lobes, a retraction system, and a connection system. The head member includes a terminal and an axle. The axle comprises a unique configuration of multiple radial regions extending from opposite sides of the terminal. The radial regions of the axle are offset with respect to one another along at least one three dimensional axis. The offset of the radial regions is configured to reduce the geometrical interference of the cam lobes across the camming range.Type: ApplicationFiled: June 15, 2012Publication date: December 19, 2013Inventors: Brenden Perkins, Sammuel Goodrich Lacey, Bill Belcount, Jacob Hall, Jeremy Andrew Steck, Joseph Benhamn Walker, Kent Lansing Dodge
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Publication number: 20130333514Abstract: A compliant cam system includes a cam having a cam body rotatable with respect to a cam rotational axis. The cam body has a cam body center spaced from the cam rotational axis. At least a portion of the cam is an elastically compressible material. A follower having at least one follower surface is in contact with the compressible material portion of the cam. A cam non-deflected condition is defined when an elastically compressible material portion outer surface is in contact with the cam follower surface prior to deflection of the elastically compressible material portion. The cam when thereafter rotated with respect to the cam rotational axis moves the cam body center toward the follower. The elastically compressible material portion deflects, defining a deflected condition, creating a biasing force acting toward the follower, and releasably frictionally engaging the elastically compressible material portion with the follower.Type: ApplicationFiled: August 1, 2013Publication date: December 19, 2013Applicant: Harris CorporationInventors: Donald Ball, Christopher Corey, Patrick Waters
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Patent number: 8578721Abstract: Provided is an ice maker including a mold with two or more cavities for receiving water to be frozen into ice pieces. A bracket defines a track establishing a range of travel of the mold during an ice making cycle and a removable pin projects outwardly from the mold, extending into the track defined by the bracket to support the mold within the ice maker. The mold can be provided with a partition separating the cavities, the partition including an aperture for establishing a substantially-even water level in the cavities below the partitions.Type: GrantFiled: February 26, 2010Date of Patent: November 12, 2013Assignee: Electrolux Home Products, Inc.Inventors: Thomas W. McCollough, Russell Watts, David R. Ducharme, Gerald Maxie
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Patent number: 8573089Abstract: A speed change operation apparatus includes a pivotal body operatively connected to a trunnion shaft to be pivotally displaced in response to an operational displacement by an operational tool, a positioning body operatively coupled with the pivotal body so as to be pivotally displaced in response to a pivotal displacement of the pivotal body, a main urging mechanism for applying an urging force to the pivotal body via the positioning body for returning the pivotal body from an operational position to the neutral position, and an auxiliary urging mechanism for applying an auxiliary urging force to the pivotal body for returning the pivotal body from the operational position to the neutral position.Type: GrantFiled: March 21, 2011Date of Patent: November 5, 2013Assignee: Kubota CorporationInventors: Akifumi Nishino, Kiyokazu Nakanishi, Shinichi Morita
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Publication number: 20130269474Abstract: The invention relates to a camshaft for a small internal combustion engine used in for example cars or motorbikes, it is characterized by being divided into two or more components, preferably it is the camshaft bearing journals (3) on the camshaft that are separate components. With a camshaft in one piece the camshaft lobes (4) cannot have a larger radius than the camshaft bearing journals (3) if the camshaft is to be inserted through the camshaft support bearings (2) in the engine. The bearing journals (3) will then limit the design and height of the camshaft lobes (4). By designing the camshaft divided in separate components to be assembled at the same time or after the camshaft has been inserted into the engine, it is possible to insert the camshaft radially displaced through the camshaft support bearings (2). This makes it possible to design the camshaft lobes (4) larger than what would otherwise be possible for given dimension of the support bearings (2).Type: ApplicationFiled: May 11, 2011Publication date: October 17, 2013Applicant: AGAP HBInventors: Reine Gustafsson, Fredrik Andersson
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Publication number: 20130263693Abstract: The present Invention relates to a cam roller (1) for a cam mechanism, a cam control and/or a roller track, comprising a roller bolt (3) and a roller body (2) which is rotatable about the latter and which is guidable on a groove cam of the cam mechanism, the cam control and/or on a roller track, wherein a lubricant carrier (4) retained on the roller bolt (3) is provided for the release of lubricant onto the tread (20) of the roller body (2).Type: ApplicationFiled: April 3, 2013Publication date: October 10, 2013Inventor: Thomas Albrecht
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Publication number: 20130258507Abstract: A lens barrel includes an optical system for forming an optical image of an object, a first tube for supporting at least one lens included in the optical system, and a second tube disposed inside or outside the first tube. The first tube includes first cam grooves in the side surface thereof on which the second tube is disposed. The second tube includes first cam followers that engage with the first cam grooves.Type: ApplicationFiled: May 30, 2013Publication date: October 3, 2013Applicant: Panasonic CorporationInventors: TETSUYA UNO, TAKUMI KUWAHARA
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Publication number: 20130260152Abstract: Apparatus to deliver predetermined forces, containers to hold particulate material and media, media, and the associated parameters for operating such equipment along with methods and compositions provided by the apparatus and methods.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Inventors: Scott L. Murray, Jim L. Peyton, Korey Morris
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Publication number: 20130247711Abstract: A cam part (1) is provided for a variable sliding cam valve drive of an internal combustion engine, which cam part (1) can be mounted on a basic shaft of the sliding cam valve drive fixedly so as to rotate with it but axially displaceably, and has one or more cam groups (2, 3) and at least one connecting link piece (4) with at least one spiral groove (5) for an actuator pin engagement. At least one weight-reducing groove (7) which does not coincide with the spiral groove (5) is formed on the outer casing (6) of the cam part (1).Type: ApplicationFiled: March 5, 2013Publication date: September 26, 2013Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Arne Manteufel, Andreas Biermann
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Patent number: 8534252Abstract: A camshaft may include a first shaft, a first lobe member, and a second lobe member. The first shaft may include an annular wall defining a first bore. The wall may include a first portion having a first radial outer surface and a second portion having a second radial outer surface that is radially offset relative to the first radial outer surface. The first lobe member may define a second bore having the first portion of the first shaft located therein and frictionally engaged with the first shaft for rotation with the first shaft. The second lobe member may define a third bore having the second portion of the first shaft located therein. The second lobe member may be rotatably disposed on the second portion of the first shaft.Type: GrantFiled: January 5, 2011Date of Patent: September 17, 2013Inventors: Glenn E. Clever, Frederick J. Rozario, Shekhar G. Wakade, Joseph E. Robbins
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Patent number: 8522643Abstract: A cam follower for a high-pressure fuel pump of an internal combustion engine, which has a cam roller that is accommodated in a pocket of the cam follower. The cam roller has a bore and the bore is mounted by on a pin which is seated at the ends in receptacles of opposite walls of the pocket. The cam roller runs with its end sides directly in front of the walls. Each end side of the cam roller takes the form of an outer surface of a spherical zone, and each wall is smooth and straight, at least in the region of its run-on piece at the respective end side of the cam roller.Type: GrantFiled: August 3, 2011Date of Patent: September 3, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Dorn, Norbert Geyer
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Publication number: 20130220068Abstract: A method for producing a functional shaft is provided in which a functional element which is provided with a pocket is inserted into a retaining element, a shaft is inserted into the pocket, and a force applied to the functional element while the shaft is being inserted into the pocket is measured. A device for producing a functional shaft and to a functional shaft produced in accordance with the method is also provided.Type: ApplicationFiled: April 12, 2013Publication date: August 29, 2013Applicant: Neumayer Tekfor Holding GmbHInventor: Neumayer Tekfor Holding GmbH
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Patent number: 8511203Abstract: A compliant cam system includes a cam having a cam body rotatable with respect to a cam rotational axis. The cam body has a cam body center spaced from the cam rotational axis. At least a portion of the cam is an elastically compressible material. A follower having at least one follower surface is in contact with the compressible material portion of the cam. A cam non-deflected condition is defined when an elastically compressible material portion outer surface is in contact with the cam follower surface prior to deflection of the elastically compressible material portion. The cam when thereafter rotated with respect to the cam rotational axis moves the cam body center toward the follower. The elastically compressible material portion deflects, defining a deflected condition, creating a biasing force acting toward the follower, and releasably frictionally engaging the elastically compressible material portion with the follower.Type: GrantFiled: April 7, 2011Date of Patent: August 20, 2013Assignee: Harris CorporationInventors: Donald Ball, Christopher Corey, Patrick Waters
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Publication number: 20130205940Abstract: An eccentric bearing for an electrohydraulic piston pump assembly of a vehicle brake system includes a shaft which can be driven in rotation about its axis, a bearing ring which is eccentric relative to the shaft, and rolling bodies arranged between the bearing ring and the shaft. The rolling bodies have different diameters corresponding to a varying width of a gap between the bearing ring and the shaft. When the shaft is driven in rotation, an eccentricity of the bearing ring circulates around the shaft at half of the rotational speed of the shaft and drives pump pistons. The pump pistons bear at the outside against the bearing ring so as to perform a reciprocating movement.Type: ApplicationFiled: March 10, 2011Publication date: August 15, 2013Applicant: Robert Bocsh GmbHInventors: Juergen Haecker, Norbert Alaze
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Publication number: 20130199330Abstract: An actuator device of a sliding cam system having at least one sliding cam and at least one engaging pin (2) projecting out from a housing (1), the housing (1) being fastenable to a component of a cylinder head or to the cylinder head of an internal combustion engine, and the engaging pin (2) being able to be contacted by at least one groove of the sliding cam system that has at least one lead-out slope, and the engaging pin (2) being spring-loaded toward the sliding cam, and, in the retracted position thereof facing the groove, the engaging pin(s) (2) or at least one component connected thereto can be secured in place by an arrestable latch device.Type: ApplicationFiled: August 22, 2011Publication date: August 8, 2013Applicant: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Patent number: 8480020Abstract: In a spinning reel, a traverse camshaft 21 is arranged to engage with an engaging member used to cause a bail arm and a spool to undergo a relative reciprocal movement. The traverse camshaft 21 has a shaft body 37 and a cam groove 38. The shaft body 37 is arranged to rotate in coordination with rotation of a handle assembly in at least a line reel-in direction. The cam groove 38 is formed in an external circumferential surface of the shaft body 37 and configured to engage with the engaging member. The cam groove 38 is also configured to intersect itself. The cam groove 38 has a first groove section 38b and a second groove section 38c on opposite sides of an intersecting portion 38a. The first groove section 38b and the second groove section 38c have different widths at the intersecting portion 38a.Type: GrantFiled: December 29, 2009Date of Patent: July 9, 2013Assignee: Shimano Inc.Inventors: Koji Ochiai, Tetsuo Inoue
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Patent number: 8479694Abstract: The finger follower employs two independent lost motion arms and a rod which moves longitudinally to lock both arms. The rod is transversely mounted in the follower. In order to avoid premature locking, each arm has a chamfered surface on a top wall to force the rod out of engagement with the arm during upward movement of the arms, to protect premature movement of the rod from an unlocked position to a locked position.Type: GrantFiled: February 11, 2011Date of Patent: July 9, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Debora Manther, Jeff Villemure
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Publication number: 20130153384Abstract: A non-homogeneous cam includes an eccentric disk having side surfaces with an opening therethrough, and a cam surface disposed between the side surfaces. A first radius extending from a point within the opening to a number of first portions of the cam surface and second radii extending from the point to second portions of the cam surface define the cam surface. The first radius is greater than each of the second radii. The cam surface includes a first cam surface generally having the first radius and a second cam surface having a plurality of the second radii. The first and second cam surfaces define an angle of less than 90 degrees. The eccentric disk is generally made of a first material having a first strength. A portion of the eccentric disk between the first and second cam surfaces is made of a different second material having a greater second strength.Type: ApplicationFiled: December 20, 2011Publication date: June 20, 2013Inventors: Anthony T. Ricciuti, Daniel E. Palmieri, Patrick C. Wolfe
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Patent number: 8459133Abstract: The swinging operation of a rotary striker turns micro switches and, which detect the position of a piston, ON/OFF. The striker includes a lower-limit switch cam and an upper-limit switch cam. The cams and engage with switch bosses and that move together with the piston. When the piston is positioned at a lower-limit stop position L, the cam becomes engaged with the boss to make the striker swing in the X-direction and pushes a switch button of the switch. When the piston is positioned at an upper-limit stop position U, the cam becomes engaged with the boss to make the striker swing in the Y-direction and pushes a switch button of the switch.Type: GrantFiled: October 29, 2010Date of Patent: June 11, 2013Assignee: Mitsuba CorporationInventors: Masaki Inoue, Masato Nakamura, Masatoshi Suzuki, Tsuyoshi Kumamoto
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Publication number: 20130133473Abstract: A pedal effort adjusting apparatus of an acceleration pedal allows adjustment of the elastic force of an elastic member by moving a carrier with rotation of a rotary cam and to easily adjust a pedal effort of a pedal arm, if necessary.Type: ApplicationFiled: June 14, 2012Publication date: May 30, 2013Applicants: Kia Motors Corp., Hyundai Motor CompanyInventors: Eun Sik Kim, Sung II Lee, Jeong Seon Min, Yang Rae Cho, Sun Geun Kim
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Publication number: 20130133474Abstract: A method for joining structural elements onto a shaft may include generating at least one projection at a respective joining position on the shaft, sliding at least one of the structural elements over at least one projection and maintaining the structural elements in at least on projection.Type: ApplicationFiled: November 26, 2012Publication date: May 30, 2013Applicant: MAHLE INTERNATIONAL GMBHInventor: MAHLE INTERNATIONAL GMBH
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Publication number: 20130125699Abstract: A method for manufacturing a shaft, particularly a camshaft, in which the camshaft has a support element and multiple functional elements, each with a recess, and the functional elements are inserted into at least one holder element, and are held immobile in that position, and the support element is inserted into the recesses, also a holder device for manufacturing a camshaft, and a camshaft produced by such a method.Type: ApplicationFiled: January 18, 2013Publication date: May 23, 2013Applicant: NEUMAYER TEKFOR HOLDING GMBHInventor: NEUMAYER TEKFOR HOLDING GMBH
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Patent number: 8443499Abstract: A method of assembling a camshaft may include locating a first lobe member of the camshaft on a first shaft and inserting a locking pin into a first bore in the first lobe member and into a second bore in the first shaft. The locking pin may include a first recess extending into a first end thereof defining a first annular wall. A first retaining member may be forced into a first recess. The forcing may displace the annular wall in an outward radial direction and into a frictional engagement with the first bore.Type: GrantFiled: March 3, 2009Date of Patent: May 21, 2013Inventors: Glenn E. Clever, Roy Glenn Kaywood, Ronald Hendrick
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Publication number: 20130118298Abstract: A cam is disclosed. The cam may include a body having an outer surface at a substantially constant diameter extending between a first end and a second end, a first path helically disposed inward from the outer surface, around the body in a first direction, wherein a first end of the first path is proximate the first end of the body, and a second path helically disposed inward from the outer surface, around the body in a second direction, wherein a first end of the second path is proximate the second end of the body.Type: ApplicationFiled: November 14, 2011Publication date: May 16, 2013Applicant: M-TEK, INC.Inventors: Tom Liakopoulos, Norman R. Buggele
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Publication number: 20130112036Abstract: A method for manufacturing a split-shaft S-cam and apparatus. The method for converting a one-piece S-cam into a two-piece comprises: cutting an S-cam along a non-bearing-surface portion resulting in an S-cam inner portion and a head portion; machining a coupling means for releasably joining the inner and head portions into each cut end; providing a nipple having, cooperating coupling means for engaging with the coupling means machined into each cut end, and a shoulder having a width equivalent to the material removed in the cutting step, the shoulder disposed between the coupling means and adapted to engage a cooperating shoulder on each of the ends; mating the coupling means with the cooperating coupling means; whereby, the two-piece S-cam allows replacement of at least a portion of an S-cam without requiring complete disassembly of a trailer brake. The coupling means and cooperating coupling means may be threaded, splined, or other well-known mechanical-type connections.Type: ApplicationFiled: November 4, 2011Publication date: May 9, 2013Inventors: Dan Miller, Steven Craig
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Publication number: 20130109335Abstract: A drive power transmission element in the form of a wheel adapted to be mounted on a non-rotatable axel where the wheel has a peripheral surface of a geometric envelope or cam profile developed on a mathematical formula being bounded and rectifiable and therefore having Defined length and area receiving a flexible power transmission element such as a rope of solid braided nylon cord locked by compression rather than friction operating circumferentially, where for example as a boat cleat or in radial operation, ideal in general for transmission of mechanical power directly applied to various mechanical linkages or where the operable dynamic forces of compression may operate as force fields or mechanical structures in lighter than air envelopes, parachutes, hydraulic nozzles, pumps, internal combustion engines, envelopes for jet engines, fiber optics, designs of optical lenses, and related applications to move or contain mass and energy over distance.Type: ApplicationFiled: October 26, 2011Publication date: May 2, 2013Inventor: Frederic Mason Mathews
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Publication number: 20130091978Abstract: A positioning apparatus of a cam plate for a vehicular air conditioning system may include the cam plate rotatably coupled to an air conditioning case by a cam shaft and including a guide slot, a plurality of positioning holes formed in the cam plate, a detent mechanism projecting from the air conditioning case toward the cam plate, and an arm rotatably coupled to the air conditioning case and including a connecting pin that may be slidably coupled to the guide slot of the cam plate, wherein, while the cam plate rotates about the cam shaft and the connecting pin included in the arm performs a camming action along the guide slot formed in the cam plate, a leading end of the detent mechanism may be selectively inserted into one of the positioning holes to detent the position of the cam plate when the connectingType: ApplicationFiled: May 24, 2012Publication date: April 18, 2013Applicants: Hyundai Motor Company, HALLA CLIMATE CONTROL CORP., Kia Motors Corp.Inventors: Yoon Hyung Lee, Tae Yong Park
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Patent number: 8418663Abstract: A novel device for controlling the compression pressure of an internal combustion engine is disclosed. The combustion chamber of each cylinder of the engine is divided into two virtual spaces, a gas exchange space and a control space. The intake and exhaust valves move in a plane substantially perpendicular to the cylinder centerline and open into the gas exchange space. The position of a preferably toroidal volume control slider determines the control space volume and subsequently, the geometrical compression ratio of the engine. At least one actuation cam bidirectionally drives said control slider, by means of a slot and captive roller arrangement. The device further comprises actuator means to rotate the cam to a predetermined angular position, as a function of engine load. Thus, the device of the invention is capable of maintaining a constant compression pressure, under varying load, by altering the geometrical compression ratio of the engine.Type: GrantFiled: March 11, 2010Date of Patent: April 16, 2013Inventor: Radu Oprea
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Patent number: 8418493Abstract: A high-durability cam wheel assembly mounted in a shell of a refrigerant recovery machine is disclosed to include an open frame member, rigid wear strips mounted in the open frame member at two sides, a sliding block having friction cylinders arranged in parallel at two opposite sides and respectively disposed in contact with the rigid wear strips and a cam wheel set formed of a first cam wheel and a second cam wheel and inserted through an axle bearing in sliding block for causing the sliding block to move back and forth in the open frame member.Type: GrantFiled: October 5, 2009Date of Patent: April 16, 2013Assignee: Sun-Wonder Industrial Co., Ltd.Inventor: An-Chao Chang
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Patent number: 8418572Abstract: A three-dimensional cam mechanism capable of selecting a cam guide surface shape freely to improve the degree of freedom for selecting a target locus on the follower side, transmitting power between orthogonal axes and performing a reversible operation. A three-dimensional cam guide surface (2 (3)) is formed in a cam (1), and the cam guide surface (2) is caused to guide a cam follower (6 (7)) formed at a predetermined angle at one end of a follower side link (4), so that the rotational movement of the cam (1) is translated into the swinging movement at the other end of the follower side link (4). Thus, smooth operations of the cam are obtained by the selection of the shape of a supporting member and by the free design of the cam guide surface shape, without being limited to the power transmission between the orthogonal axes or followed by backlash.Type: GrantFiled: May 28, 2008Date of Patent: April 16, 2013Assignee: National University Corporation Fukushima UniversityInventors: Takayuki Takahashi, Seong Hee Jeong, Yoshihito Ozawa, Kunio Shimada, Yaoyang Zheng, Kazuhiko Fukuda
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Patent number: 8381615Abstract: A shaft, such as a camshaft for use in the internal combustion engine of a motor vehicle, in which the shaft includes a basic shaft body, a plurality of functional bodies, such as cams, mounted in axially spaced positions on the basic shaft body, and at least one balancing element mounted on the basic shaft body, in which the at least one balancing element is produced separately from the basic shaft body and from the functional bodies, and the functional bodies and the at least one balancing element are subsequently mounted on said basic shaft body, for example, by axial press fitting.Type: GrantFiled: February 5, 2008Date of Patent: February 26, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Manfred Vogel, Matthias Derse, Matthias Bechtold, Thomas Winkler
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Patent number: 8375580Abstract: A method for manufacturing cams for composite camshafts with the steps hot-forming a cam 11 such that a cam outside contour is produced and a cam bore 13 is punched and axially and radially calibrating the cam 11, wherein the calibration comprises the steps inserting the cam into an undivided mold 21 that defines the calibrated cam outside contour 12, inserting an arbor 23 into the cam bore 13 that defines the calibrated cam bore 13, and axially shortening the cam 11 between a lower die 22 that is situated between the mold 21 and the arbor 23 and on which the cam 11 lies with a first end face 14 and an upper die 25 that is guided between the mold 21 and the arbor 23 and acts upon the second end face 15 of the cam 11.Type: GrantFiled: June 5, 2008Date of Patent: February 19, 2013Assignee: Muhr und Bender KGInventors: Rudolf Bonse, Jürgen Schellbach, Jochen Wolf
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Publication number: 20130019710Abstract: A joined prefabricated individual cam (1, 2), comprising multiple cams for an adjustable camshaft in particular for an internal combustion engine of a motor vehicle, whereby the camshaft has two shafts mounted concentrically one inside the other, namely an inner shaft and an outer shaft, and the joined multiple cam is fixedly pinned to the inner shaft via radial openings provided in the outer shaft with a rotatable bearing on the outer shaft, should be easy and inexpensive to manufacture. To this end, such a multiple cam is characterized in that at least one prefabricated individual cam (1, 2) is placed as a cam ring on the outside circumference of a carrier pipe (3?) at an axial distance from the neighboring individual cams (1, 2) and is fixedly connected to this carrier pipe (3?) at a predetermined angle of rotation and axial distance assignment.Type: ApplicationFiled: July 13, 2012Publication date: January 24, 2013Applicant: MAHLE International GmbHInventors: Martin LECHNER, Mario PROKOP, Falk SCHNEIDER
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Publication number: 20130000442Abstract: A cam unit for arranging on a camshaft main part of a camshaft in a rotationally fixed and axially movable manner. The cam unit includes a tubular sleeve main part and at least one cam element that lies on the sleeve main part in a rotationally fixed and non-movable manner. The sleeve main part and the at least one cam element are designed as individual parts that can be separately produced and subsequently assembled.Type: ApplicationFiled: November 11, 2010Publication date: January 3, 2013Inventors: Peter Wiesner, Manfred Muster, Thomas Binder, Jonathan Heywood
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Patent number: 8342585Abstract: A drum lifter for lifting and moving empty and full chimed and unchimed drums. The lifter includes a cross member with grippers at each end. The grippers include a cam block with a cam rotatably mounted in the cam block.Type: GrantFiled: November 18, 2009Date of Patent: January 1, 2013Inventors: Edward L. Cooper, Kevin L. Copeland, Steven J. Hayes
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Publication number: 20120312158Abstract: A ring cam for a fluid-working machine is formed from a plurality of segments. The segments comprise a leading cooperating formation which has a piston facing surface which forms part of the working surface, at a trailing end, and which is recessed from the working surface at a leading end, and a trailing cooperating formation which has a piston facing surface which forms part of the working surface at a leading end, and which is recessed from the working surface at a trailing end. The segments having piston facing surfaces which are in compressive stress such as to partially or fully compensate for tensile stress arising from the action of rollers in use. The segments form a wavelike cam surface and attachment means are provided, through the working surface, on whichever of the leading or trailing surfaces thereof is subject to lowest forces from pistons in use.Type: ApplicationFiled: July 19, 2011Publication date: December 13, 2012Applicant: ARTEMIS INTELLIGENT POWER LIMITEDInventors: William Hugh Salvin Rampen, Uwe Bernhard Pascal Stein, Robert George Fox, Stephen Hugh Salter
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Patent number: 8328541Abstract: A mechanism converts rotational displacement to linear displacement with ramped driver discoidal elements and ramped driven discoidal elements on a common central axis. The ramped surfaces of the two elements are complementarily shaped and opposed so that, when in contact and completely interengaged, they form an assembly of minimum length. The driver elements are rotated by an external force. The driven elements are allowed to translate along the common axis while being prevented from rotating about the common axis, whereby a rotational displacement of the driver elements by an externally applied force causes the elements to separate by camming action of the interengaged ramp surfaces to produce a linear displacement of the driven elements. A spring is coupled to the driven elements so as to restore the assembly to its minimum length in the absence of the externally applied force.Type: GrantFiled: November 14, 2007Date of Patent: December 11, 2012Assignee: Rodia Technologies LimitedInventor: Gareth Philip Bristow
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Publication number: 20120291599Abstract: A torque-limiting driving tool having a body having an axis of rotation, an elongated shaft disposed along the axis of rotation and supported by the body, and a torque-limiting element disposed to limit the amount of torque imposed on the body which is transmitted to the elongated shaft. The torque-limiting element includes opposed cams each of which comprises a metallic cam surface and a non-metallic structural base which is disposed to hold the metallic cam surface in operable position within the body. The torque-limiting driver may have a torque-adjustment element which is operable to adjust the torque value to which the transmitted torque is limited, which may include a plug bearing threads which are compatible with threads of the body. The body may include a locking element which drivably interacts with the plug to resist spontaneous rotation of the plug.Type: ApplicationFiled: May 21, 2012Publication date: November 22, 2012Inventor: Brian James Cutler