With Lubricating Means Patents (Class 92/153)
  • Patent number: 10801623
    Abstract: A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: October 13, 2020
    Assignee: Thermo King Corporation
    Inventors: Joseph Robert Kaiser, David John Dykes, Ralph David Price, Ryan Michael Fritts
  • Patent number: 10781815
    Abstract: The present invention discloses a large-flow plunger pump, comprising a box, a crank-link mechanism, a plunger, a suction valve and a discharge valve. On the basis of the conventional multi-cylinder plunger pumps, assemblies such as a detachable upper crosshead guide, an intelligent plunger packing lubrication system, a damping valve, crankshaft support roller assemblies, and a suction-pressure stabilizer having a cooling water coil therein are invented. Both the service life and the reliability of the large-flow plunger pumps are overall improved.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: September 22, 2020
    Assignee: JINTUO PETROLEUM MICHINERY MANUFACTURING CO., LTD.
    Inventors: Yuanzhi Ma, Qinghe Gao
  • Patent number: 10718391
    Abstract: A caliper brake featuring a hydraulic piston assembly includes a housing, a movable piston within a chamber of the housing, a first port providing a first fluid pathway into the chamber, and a redundant seal assembly. The redundant seal assembly may include a first pressure seal disposed about a first interior circumference of the chamber disposed above the first port, a second pressure seal disposed about a second interior circumference of the chamber disposed above the first pressure seal, and a second port disposed between the first pressure seal and the second pressure seal, the second port providing a second fluid pathway from inside of the chamber to outside of the chamber, and the second port establishing a bleed-off for fluid traversing above the first pressure seal such that the second pressure seal experiences a lower fluid pressure than the first pressure seal during normal operation of the caliper brake.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: July 21, 2020
    Assignee: Wind Solutions, LLC
    Inventors: Christopher James Winslow, Matthew Kenneth King
  • Patent number: 10653516
    Abstract: An artificial muscle including an internal electromechanically charged rod extending beyond two attach points. A plurality of mesh cylinders having a mesh cylinder top and a mesh cylinder bottom surrounding the charged rod. A fiber surrounding the mesh cylinders and mechanically attached to the mesh cylinders at an attachment spacing and wherein an electromagnetic source activates the artificial muscle through at least one microprocessor. The artificial muscle fiber may be nylon and the attach points may be titanium. The artificial muscle fiber may be coated with nylon. The artificial muscle fiber may contain a viscous fluid.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 19, 2020
    Assignee: The Government of the United States as Represented by the Secretary of the Air Force
    Inventor: Matthew A Eastwood
  • Patent number: 10612540
    Abstract: A device for shielding pump gland wells which permits visual access to the pump gland components. The device includes and not limited to a rectangular body structure (1) comprising of a flexible material having at both ends narrow sections (2) with stop flange sections (3), a window section (7) with a clear member (5) permanently held in place by pop rivets (4) and washers (6) having a fastening means by the elasticity of the body structure (1) to compress to form a u-shape and install with biased tension by pressing the narrow sections (2) into the inner circumferential surface of the gland well (9) which installation is complete when contact between the stop flange section (3) with the gland well (9) top edge. The device maybe made of a clear flexible material and further comprising of other shapes which will produce the equivalent result.
    Type: Grant
    Filed: February 18, 2018
    Date of Patent: April 7, 2020
    Inventor: Paul Joseph DeCanio
  • Patent number: 10539164
    Abstract: A hydraulic actuator includes a hollow tube that has a first opening at a first end of the hollow tube and that has a second opening at a second end of the hollow tube. The hollow tube contains hydraulic fluid. A moveable magnet moves within hollow tube as a result of a magnetic field within the hollow tube. A magnetic field source located outside the hollow tube creates the magnetic field within the hollow tube. When the moveable magnet moves to the first end of the hollow tube, a first piston pushes hydraulic fluid out of the first opening. When the moveable magnet moves to the second end of the hollow tube a second piston pushes hydraulic fluid out of the second opening.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 21, 2020
    Inventor: William Davis Simmons
  • Patent number: 10422359
    Abstract: A method is disclosed wherein two sheets of a flexible, inelastic substance are sealed along a periphery thereof, creating an interior reservoir preferably containing two or more elongate chambers, organized normal to an axis of traction. The disclosed axis of traction is an axis along which the disclosed device reduces length as a compressed medium is introduced into the reservoir. Further disclosed is a method by which one or more bladders of flexible, inelastic substance are woven through two or more preferably parallel strips or strings. The bladders are adapted to receive a preferably gaseous or liquid compressed medium. As the compressed medium is moved into the bladders, the flexible strips or stings are deformed to cause the strips or strings to have a reduced length along the axis of traction.
    Type: Grant
    Filed: May 8, 2016
    Date of Patent: September 24, 2019
    Inventor: Alexander Sergeev
  • Patent number: 9243634
    Abstract: A compressor includes sliding members arranged to slide relative to each other when compressing a refrigerant. At least one of the sliding members has a resin layer that is formed on the whole area or a portion of at least one sliding surface. The resin layer has an arithmetic mean surface roughness (Ra) of 0.3 or more, or the whole area or a portion of an area opposed to the resin layer is entirely or partially harder than the resin layer and has an arithmetic mean surface roughness (Ra) of 0.3 or more.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: January 26, 2016
    Assignee: Daikin Industries, Ltd.
    Inventors: Takeo Hayashi, Yuuichi Yamamoto, Masahide Higuchi, Chihiro Endou
  • Patent number: 9021937
    Abstract: Provided is a reciprocating compressor having a structure in which friction losses between a shaft and a bearing can be reduced without impairing the ability of the bearing to support the shaft. A reciprocating compressor (100) includes a cylinder (5), a piston (4), a connecting rod (6), a shaft (1), and a bearing (2). The shaft (1) has a journal portion (28) as a portion covered by the bearing (2). The journal portion (28) has a first journal portion (7) located closer to the connecting rod (6) with respect to a midpoint M of the journal portion (28) in a direction parallel to a rotational axis and a second journal portion (8) located farther from the connecting rod (6) with respect to the midpoint M. The bearing (2) has a first sliding portion (10) for supporting the first journal portion (7) and a second sliding portion (11) for supporting the second journal portion (8).
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 5, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Sugamoto, Masaru Matsui, Fuminori Sakima, Ko Inagaki, Akira Nakano
  • Patent number: 8967037
    Abstract: A common rail fuel pump includes a cam shaft with at least one cam rotatably supported in a pump housing. A plurality of tappet assemblies are each reciprocatingly movable in the pump housing, and include an axle pin mounted in a tappet, and a roller mounted in contact for rotation about the axle pin. Each end of the roller includes a plurality of non-contiguous planar thrust surfaces separated by lubrication grooves. A lubrication pathway for the roller includes in sequence a lubrication passage that opens to a roller bearing surface, movement along the roller bearing surface into the lubrication grooves, and then between the planar thrust surface of the roller and a counterpart thrust face of the tappet responsive to rotation of the roller on the cam shaft.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: March 3, 2015
    Assignee: Caterpillar Inc.
    Inventors: Christopher Robert Jones, Stephen Robert Lewis, Sana Mahmood, Eric L. Rogers
  • Publication number: 20140318365
    Abstract: Restrictors (16,17) for aerostatic bearings capable of ensuring a constant flow, regardless of their size and dimensional tolerance, such that the gas flow is adjusted by deforming their internal section. A process for the production of restrictors (16,17) for aerostatic bearings with respect to ensuring the gas flow values desired is also provided.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 30, 2014
    Applicant: WHIRLPOOL S.A.
    Inventors: Henrique Bruggmann Muhle, Dietmar Erich Bernhard Lilie
  • Patent number: 8863644
    Abstract: A lubricant supply mechanism is provided to an upper portion of a cam. A fixing member of the lubricant supply mechanism includes a recovery blade as a lubricant recovery member having lower end portions in contact with side face peripheral edge portions of the cam. The lower end portions of the recovery blade are in contact with the side face peripheral edge portions of the cam. An angle ?, which the lower end portions of the recovery blade make with a direction of rotation of the cam is smaller than 90°.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: October 21, 2014
    Assignee: Shimadzu Corporation
    Inventor: Masanori Fujiwara
  • Publication number: 20140190154
    Abstract: The invention relates to a method for operating a steam power plant, comprising a steam engine which is operated with a vaporous working medium, an evaporator for evaporating the working medium; a condenser for liquefying the working medium and a reservoir for the working medium. The invention is characterized in that a lubricant sump in a housing of the steam engine is heated to a temperature above the evaporating temperature of the working medium by means of a heating device during the starting phase of the steam engine.
    Type: Application
    Filed: July 14, 2011
    Publication date: July 10, 2014
    Inventors: Jurgen Berger, Christian Bausch, Jens Grieser
  • Publication number: 20140123848
    Abstract: A piston for a die-casting machine, in particular with a cold chamber, comprises a stem which extends from a proximal end to a distal end along a piston axis and a piston head which extends from the distal end of the stem and which has a side wall with at least one sealing area suitable to form a seal on the wall of said container of the press. A lubrication circuit suitable for favouring the sliding of the piston comprises first lubrication ducts made in the stem and ending at the distal end of said stem, and second ducts made in the piston head, fluidically communicating with said first ducts and coming out in the lateral wall at least in correspondence with said sealed area.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 8, 2014
    Applicant: Copromec Die Casting S.r.I.
    Inventors: Carlo Schivalocchi, Chiara Schivalocchi, Nicola Schivalocchi
  • Publication number: 20140000451
    Abstract: A reciprocating compressor of the present invention includes an electric component (6), a compression component (9), and a container (1).
    Type: Application
    Filed: March 9, 2012
    Publication date: January 2, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takumi Hikichi, Ichiro Kita
  • Patent number: 8601935
    Abstract: A linear compressor comprising a piston housing; a compressor piston configured for reciprocatory motion with the piston housing along an axis thereof, whereby the compressor piston is mounted in the piston housing a housing wall having openings formed therein with a gaseous fluid flowing through the openings; and a discharge device for fluid condensate.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: December 10, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Marco Giacchi, Thorsten Kusnik, Jan-Grigor Schubert
  • Publication number: 20130205991
    Abstract: A method of producing a piston includes a step of producing a naked piston having the skirt portion; a step of forming the skirt portion with streaks; a step of applying a skirt portion of the s naked piston with a first film forming paint which is provided for producing the inner solid lubricant film; a step of heating the first film forming paint on the skirt portion at a temperature of 60° C. to 160° C. for a time less than 800 seconds to dry the same; a step of applying an outer surface of the dried first film forming paint with a second film forming paint which is provided for producing the outer solid lubricant film; and a step of heating the first and second film forming paints on the skirt portion at a temperature of 160° C. to 240° C. for a time of 15 minutes to 180 minutes.
    Type: Application
    Filed: January 29, 2013
    Publication date: August 15, 2013
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Hitachi Automotive Systems, Ltd.
  • Publication number: 20130167795
    Abstract: A piston engine may include a non-contact bearing between a piston assembly and a cylinder. The piston may be configured to translate in a bore of the cylinder, and a non-contact bearing may be included in a clearance gap between the piston assembly and the bore. A bearing fluid may be supplied to the clearance gap via the piston assembly and/or cylinder to create the non-contact bearing. A bearing element may be used to direct or otherwise manage the flow of bearing fluid in the clearance gap. The bearing element may include one or more holes, porous portions, and/or passages to direct the bearing fluid to the clearance gap.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 4, 2013
    Applicant: Etagen, Inc.
    Inventor: Etagen, Inc.
  • Publication number: 20130139682
    Abstract: A single sided, dual plunger pump is disclosed for use pumping difficult working fluids, including fluids with high particulate content. Each plunger operates in the opposite state as the other, such that when one plunger is filling with fluid, the other is discharging, and so forth. This creates discharge flow that is much more stable than a pump using only a single plunger, without requiring two individual pumps to be connected together.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 6, 2013
    Applicant: GSSC, INC.
    Inventor: Nick Chagaris
  • Publication number: 20130112073
    Abstract: Enclosure (16) for housing a coupler (18) between a driving rod (20) and a driven rod (22) comprises a first and a second preferably cylindrical pieces (30, 28). Said pieces are sized so that the first piece (30) is able to slide telescopically within the second piece (28) and are threaded to engage each other when in operation the enclosure (16) is in a close position, thereby the enclosure (16) being able to retain lubricant in the inside. For service, after having drained the lubricant from the enclosure (16), the two pieces are loosened by screwing the first piece (30) until the end of the thread is reached, and then the first piece (30) is slideably telescoped into the second piece (28), thereby setting the enclosure (16) in an open position an enabling easy access to the rod coupler (18).
    Type: Application
    Filed: November 19, 2010
    Publication date: May 9, 2013
    Inventors: Nicholas K. Studt, Matthew R. Theisen, Ronald W. Mangus, Charles J. Wheeler, Brian L. Allen, Christopher J. Pellin
  • Publication number: 20120234038
    Abstract: A compressor (10, 200) for compressing refrigerant, having a power unit arranged in a power unit space (14) which is delimited at least partially by a power unit housing (12), having a suction gas volume (46) and having a high-pressure volume (48) is in fluid communication with the power unit space (14) via a second fluid connection (74), wherein the compressor furthermore has a first fluid connection (54, 254) which can be placed in or is in fluid communication with an oil-conducting volume (205) of a refrigeration plant or of the compressor (10, 200), wherein an oil seperator (56) is arranged in the first fluid connection (54, 254).
    Type: Application
    Filed: November 23, 2010
    Publication date: September 20, 2012
    Inventors: Wolfgang Etter, Arno Goerlich
  • Publication number: 20120160090
    Abstract: An air cylinder that can prevent foreign substances from intruding inside in an environment where fine foreign substances such as dust are scattered. The air cylinder includes, in a through hole of a rod cover, an annular lubricator impregnated with a lubricant so as to supply the lubricant to the rod and a liquid-absorptive annular dust wiper not containing a lubricant and provided for preventing fine foreign substances such as powder stuck to the rod from intruding inside. The lubricator and the dust wiper are disposed air-tightly and slidably in contact with the rod, and the dust wiper is located closer to a leading end of the rod than the lubricator.
    Type: Application
    Filed: March 9, 2010
    Publication date: June 28, 2012
    Applicant: SMC CORPORATION
    Inventors: Akiyoshi Kato, Naoki Shinjo
  • Publication number: 20120132069
    Abstract: A cylinder bore for minimizing the friction loss may include a plurality of oil pockets formed on stroke sections that contact a piston on an interior circumference of the cylinder bore. The oil pockets may be formed by a laser honing method, and may have different shapes over the stroke sections or different shapes over the stroke sections according to stroke speeds. Moreover, the oil pockets may have a structure such that more oils can be supplied to an upper stroke section or to a lower stroke section than to a center stroke section of the cylinder bore. Furthermore, the oil pockets may be formed symmetrically with respect to a center stroke section of the cylinder bore.
    Type: Application
    Filed: September 15, 2011
    Publication date: May 31, 2012
    Applicant: Hyundai Motor Company
    Inventor: Moon Ki Roh
  • Patent number: 8122811
    Abstract: A housing has a cylinder and a compression chamber. A plunger is slidable in the cylinder and configured to pressurize fuel in the compression chamber. A cam is eccentric with respect to a shaft center axis of a camshaft and integrally rotatable with the camshaft. A sliding member is slidable around an outer circumferential periphery of the cam and configured to revolve around the shaft center axis in conjunction with rotation of the camshaft. The plunger is slidable on the sliding member and configured to convert the revolution into a linear movement. The cam and the sliding member are accommodated in the housing. The sliding member has an opening through which the outer circumferential periphery is partially exposed.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: February 28, 2012
    Assignee: Denso Corporation
    Inventors: Satoru Takamizawa, Katsumi Mori, Atsushi Sano, Takafumi Naitou
  • Patent number: 8118567
    Abstract: A swash plate type piston pump motor is configured such that: a plurality of pistons are arranged in a circumferential direction in a cylinder block configured to rotate with a rotating shaft; the pistons reciprocate such that tip end portions thereof are guided by a smooth surface of a swash plate; and the swash plate is slidably supported by a concave surface of a swash plate support of a convex surface to be able to tilt with respect to a rotating axis, and concave surfaces and of the swash plate support include quenched portions which are partially quenched by laser light.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: February 21, 2012
    Assignee: Kabushiki Kaisha Kawasaki Precision Machinery
    Inventors: Takashi Mori, Yasuo Ohmi, Hideki Okado
  • Patent number: 8092193
    Abstract: A self-lubricating water-cooled piston-style water pump has a unitary pump housing with a crankcase in direct water communication with the water pump inlet. A low pressure chamber is in direct water communication with the crankcase. A compression chamber is in direct pressurized water communication with a high pressure water manifold through a one-way valve. A high pressure water pump outlet extends outwardly from the manifold to the exterior of the housing. A crankshaft is connected to a connecting rod and a plunger rod, both of which are lubricated and water-cooled in the crankcase. A compression plunger has water channels therethrough connected to the plunger rod and in water communication with the low pressure chamber. The plunger is reciprocal within the compression chamber. A second one-way valve is on the plunger in the compression chamber to let water into the compression chamber.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 10, 2012
    Assignee: Diversified Dynamics Corporation
    Inventor: Steve Larson
  • Publication number: 20110239856
    Abstract: A system and method for lubricating a packing gland of a positive displacement plunger pump. The system includes a pressure regulated lubricant discharge from the packing gland. The pressure regulated lubricant discharge maintains a positive pressure in the packing gland to resist unloading of the packing.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 6, 2011
    Inventors: William J. Tiller, Steven T. Donald
  • Publication number: 20110232276
    Abstract: A Stirling engine includes a high-temperature side cylinder and an expansion piston that is subjected to gas lubrication, or more specifically static pressure gas lubrication, relative to the high-temperature side cylinder and has a layer on an outer peripheral surface thereof, the layer being formed from a flexible material having a higher linear expansion coefficient than a base material of the expansion piston, wherein a booster pump and a ECU are provided as a contact avoiding device to prevent the expansion piston from contacting the high-temperature side cylinder when an engine operation is stopped until a temperature of the expansion piston can be suppressed below a predetermined value.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 29, 2011
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroshi Yaguchi, Daisaku Sawada, Masaaki Katayama
  • Publication number: 20110192277
    Abstract: A lubricant supply mechanism is provided to an upper portion of a cam. A fixing member of the lubricant supply mechanism includes a recovery blade as a lubricant recovery member having lower end portions in contact with side face peripheral edge portions of the cam. The lower end portions of the recovery blade are in contact with the side face peripheral edge portions of the cam. An angle ?, which the lower end portions of the recovery blade make with a direction of rotation of the cam is smaller than 90°.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 11, 2011
    Inventor: Masanori Fujiwara
  • Publication number: 20110154982
    Abstract: A refrigeration compressor includes an internal cooling system. The compressor includes a compressor shell (1), inside of which are disposed a compression cylinder (2, 3), a piston that performs an alternating movement inside the cylinder, an oil accumulation region (5) in the lower part of the compressor shell, and piston drive means having a rotary shaft (4) oriented substantially vertically, with an upper end mounted to a piston drive cam (7). The compressor has a system for collecting the oil coming from the shaft (4), and expelled by the cam (7), in the upper part of the shell (1). This accumulated oil is drained over the compression cylinder (2, 3), so as to cool it, thus increasing the efficiency of the compressor.
    Type: Application
    Filed: July 15, 2009
    Publication date: June 30, 2011
    Inventors: Fernando Antonio Ribas Junior, Mateus Magnabosco
  • Publication number: 20110146626
    Abstract: A high pressure fuel pump (20) that pressurizes and supplies a fuel by driving a cam (21) such that a plunger (23) reciprocates, the high pressure fuel pump (20) comprises a lifter guide (25) having a guide hole (25A), a lifter (22) that is disposed between the cam (21) and the plunger (23) and is fitted into the guide hole (25A) to be free to slide so as to transmit a driving force from the cam (21) to the plunger (23), an oil collection portion (27) that is provided above the guide hole (25A) so as to surround a periphery of the lifter (22), and stores a lubricating oil for lubricating a sliding portion between the lifter (22) and the guide hole (25A), and an oil supply passage (25C) for supplying the lubricating oil to the oil collection portion (27). As a result, a reduction in a lubricating performance with regard to the lifter (22) in a position away from an opening portion of the oil supply passage (25C) is suppressed.
    Type: Application
    Filed: June 29, 2009
    Publication date: June 23, 2011
    Inventors: Noriyoshi Maruyama, Tomoyuki Koike
  • Patent number: 7882779
    Abstract: A variable displacement inclined plate type compressor comprising a spindle, an inclined plate provided to be inclinable relative to the spindle and rotating together with the spindle, a pair of shoes arranged to hold the inclined plate therebetween, and a piston coupled with the inclined plate through the pair of shoes, wherein the quantity of stroke of the piston is determined depending on the inclination angle of the inclined plate. In the sliding surface of the inclined plate with which the planar part of the shoe comes into contact, a groove is provided such that the contact area of the shoe and the sliding surface of the inclined plate when the inclination angle of the inclined plate is minimum becomes smaller than that when the inclination angle of the inclined plate is maximum. In such a structure, power consumption can be reduced during low displacement operation without damaging reliability of the compressor.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: February 8, 2011
    Assignee: Sanden Corporation
    Inventor: Teruo Higuchi
  • Patent number: 7878081
    Abstract: A portable, refrigerant recovery unit for transferring refrigerant from a refrigeration system to a storage tank. The recovery unit includes two, opposed piston heads rigidly attached to respective piston rods that extend along a common fixed axis. The piston rods are rigidly attached to the yoke member of a scotch yoke arrangement. In operation, incoming refrigerant from the system is simultaneously and continuously directed to the opposing piston heads wherein the forces of the pressurized refrigerant on them counterbalance or neutralize one another. The scotch yoke arrangement includes a two-piece slide mechanism mounted about a cylindrical crank pin and a single piston embodiment is additionally disclosed.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: February 1, 2011
    Inventor: Gregory S Sundheim
  • Publication number: 20110005386
    Abstract: A linear motion device includes a housing which extends in a longitudinal direction, and in which a rotor movable in the longitudinal direction is accommodated, the housing including a lubricant supply device, via which the rotor may be supplied with lubricant. The lubricant supply device includes a plunger mounted on the housing and movable transversely to the longitudinal direction, and a spring via which the plunger may be pushed against the rotor, to establish a lubricant supply connection to the rotor via the plunger.
    Type: Application
    Filed: May 19, 2010
    Publication date: January 13, 2011
    Inventor: Rainer Sauer
  • Patent number: 7849783
    Abstract: Embodiments of the present invention are disclosed herein. One embodiment of a bearing for a piston engine has a bearing made of a plastic material and having a substantially planar base and a substantially hemispherical portion. The base is configured to engage with a swash plate, and the hemispherical portion is configured to engage with a piston.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: December 14, 2010
    Assignee: GGB, Inc.
    Inventor: Yuan Peng
  • Patent number: 7845269
    Abstract: A piston has a piston body with a pair of pin bosses having pin bores aligned along a central axis. The pin bores have bearing surfaces, wherein at least one recess extends axially across at least one of the bearing surfaces. A groove extends partially about the bearing surface circumference and is arranged in fluid communication with the recess. The recess and groove provide a lubrication feature to the pin bore, while the bearing surface has an uninterrupted portion for enhanced load carrying capacity.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: December 7, 2010
    Assignee: Federal-Mogul Worldwide, Inc.
    Inventors: James Russell Hayes, Gary D. Dowdy, Jeffery D. Wilkerson, John David Overbey
  • Publication number: 20100202901
    Abstract: A self-lubricating water-cooled piston-style water pump has a unitary pump housing with a crankcase in direct water communication with the water pump inlet. A low pressure chamber is in direct water communication with the crankcase. A compression chamber is in direct pressurized water communication with a high pressure water manifold through a one-way valve. A high pressure water pump outlet extends outwardly from the manifold to the exterior of the housing. A crankshaft is connected to a connecting rod and a plunger rod, both of which are lubricated and water-cooled in the crankcase. A compression plunger has water channels therethrough connected to the plunger rod and in water communication with the low pressure chamber. The plunger is reciprocal within the compression chamber. A second one-way valve is on the plunger in the compression chamber to let water into the compression chamber.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 12, 2010
    Applicant: Diversified Dynamics Corporation
    Inventor: Steve Arnold Larson
  • Patent number: 7765917
    Abstract: An air compressor that employs splash lubrication to lubricate and cool a piston kit that includes a cylinder and a piston reciprocating in the cylinder. In one form, cooling channels can be coupled to or formed on the cylinder to direct the lubricant that is splashed onto the cylinder to drain in a desired manner, such as helically around the exterior of the cylinder, to more effectively cool the piston kit. In another form, the cylinder can include an annular flange that can be bigger in diameter than a remainder of the cylinder. The annular flange can be received into a counterbore in a cylinder block. A cylinder head, which can be fastened to the cylinder block, can apply a clamping force to the annular flange to clamp or fix the cylinder to cylinder.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 3, 2010
    Assignee: Black & Decker Inc.
    Inventors: John W. Hardin, Mark W. Wood, John R. Bezold, Lance S. Hathcock
  • Publication number: 20100095837
    Abstract: An article with an abradable dry powder coating thereon comprises an abradably coated article with a substrate surface and having at least one coating of a liquid primer on the substrate surface and then coating with at least one abradable dry powder coating on the surface of the liquid primer. The sequence of layers may also be reversed, or additional layers may be useful. The abradable dry powder coating is formed of a dry powder coating composition including a thermoset resin having a cure temperature combined with at least one filler material, wherein the filler is formed of a material which does not melt substantially at or below the cure temperature of the resin, whereby an abradable coating results employing a filler to make the coating.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 22, 2010
    Inventor: Andrew W. Suman
  • Publication number: 20090272259
    Abstract: This disclosure concerns machines that convert rotating motion to reciprocation, and vice-versa, and more particularly, but not exclusively, to reciprocating piston machines. Some embodiments include a crankshaft defining a crankshaft-drive and at least one radially extending piston-journal spaced from the crankshaft-drive, and a piston configured to pivotally engage the piston-journal. The piston defines a cylindrical head and an elongate body. Some embodiments further include a drive-member defining a central-axis-of-rotation and being rotatably engageable with the crankshaft-drive. Some embodiments also include a block defining one or more cylinders for receiving one or more pistons. The drive-member rotates when the piston reciprocates, and vice-versa.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 5, 2009
    Inventors: Christopher L. Cook, Scott Cook
  • Patent number: 7600464
    Abstract: The concentricity and coaxiality of a central bore through a piston for a free piston Stirling machine is improved with a piston that has a sleeve with a core constructed from at least two, separate, axially-engaging core components sealed within the sleeve. During fabrication, a central bore is machined through each of the core components. The piston is assembled by heating the sleeve and cooling the core components, inserting the core components into the sleeve and then allowing the sleeve to cool and the core components to warm. This drives the core components into sealed engagement with each other and with the sleeve and aligns the central bore coaxially with the outer cylindrical surface of the sleeve.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 13, 2009
    Assignee: Sunpower, Inc.
    Inventors: E. Todd Cale, Aaron M. Courtney, Jerry A Royse
  • Patent number: 7513756
    Abstract: A fuel supply pump with a large fuel discharge amount and a tappet structure body, which are suitably used for an accumulated pressure-type fuel injection device that mechanically amplifies pressure, is provided. A fuel supply pump has a tappet structural body and a spring sheet, wherein a penetration portion for allowing passage of a lubricant or a fuel for lubrication therethrough by coordinating the tappet structure and the spring sheet is provided between a spring-holding chamber for holding a spring to be used for pulling up a plunger and a cam chamber for housing a cam to be used for moving the plunger up and down.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 7, 2009
    Assignee: Bosch Automotive Systems Corporation
    Inventors: Nobuo Aoki, Kazuya Kubota, Takeshi Terada, Noriyuki Kobayashi
  • Publication number: 20090031894
    Abstract: A sliding device 1 includes a swash plate 3 rotated in association with a rotating shaft 2 and a plurality of semispherical shoes 4 sliding on the swash plate 3. The semispherical shoe 4 is formed of a ferrous material, and the swash plate 3 is manufactured using high-strength brass as a material. On a sliding surface 4A of the shoe 4, a large number of minute annular expandingly projecting parts 7? are formed by laser hardening, and a lubricating oil passage 10? consisting of a reticular concave part is also formed. Thereby, the sliding device 1 having excellent seizure resistance as compared with the conventional sliding device can be provided.
    Type: Application
    Filed: January 18, 2006
    Publication date: February 5, 2009
    Inventors: Hiroshi Kanemitsu, Masaharu Hatta
  • Patent number: 7467582
    Abstract: A hydraulically driven pump includes a first chamber exposed to a process fluid, a second chamber configured to retain a hydraulic fluid, and a multi-layer diaphragm positioned between the first and second chambers. The diaphragm includes a first layer in contact with the process fluid being pumped, a second layer in contact with the hydraulic fluid, and a third layer that includes an elastomeric base material and an elastomeric conductive trace embedded in the elastomeric base material. The third layer is positioned between the first and second layers and being movable relative to the first and second layers. Changes in an electrical resistance of the conductive trace indicate a failure condition in one of the first, second and third layers.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: December 23, 2008
    Assignee: Wanner Engineering, Inc.
    Inventor: Richard Hembree
  • Publication number: 20080168898
    Abstract: An air compressor that employs splash lubrication to lubricate and cool a piston kit that includes a cylinder and a piston reciprocating in the cylinder. In one form, cooling channels can be coupled to or formed on the cylinder to direct the lubricant that is splashed onto the cylinder to drain in a desired manner, such as helically around the exterior of the cylinder, to more effectively cool the piston kit. In another form, the cylinder can include an annular flange that can be bigger in diameter than a remainder of the cylinder. The annular flange can be received into a counterbore in a cylinder block. A cylinder head, which can be fastened to the cylinder block, can apply a clamping force to the annular flange to clamp or fix the cylinder to cylinder.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 17, 2008
    Inventors: John W. Hardin, Mark W. Wood, John R. Bezold, Lance S. Hathcock
  • Publication number: 20080105117
    Abstract: An engine, e.g., a cam drive, barrel-type internal combustion engine, that includes: a main drive shaft defining a longitudinal axis; a sinusoidal main drive cam rigidly attached to the main drive shaft; a plurality of cam members that are in contact with the sinusoidal main drive cam and that are configured to follow the sinusoidal main drive cam, wherein rotation of the sinusoidal main drive cam corresponds to reciprocating linear movement of each of the plurality of cam members in a direction parallel to the longitudinal axis; for each cam member, a pair of linear pistons disposed on opposite sides of the cam member for reciprocating linear movement within respective cylinder bores.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 8, 2008
    Inventors: Larry Kubes, Pierre-Louis Vernhes, Chris Lambert, Jeff Klaver, Peter Campbell
  • Publication number: 20080098883
    Abstract: A reciprocating pump (10) for pumping seawater or other fluid under high-pressure. The pump (10) has a pump body (11) defining an internal space (13) and an opening (18) onto the internal space. A plunger (25) extends through the opening (18) and into the internal space (13). A sheath (30) closes the opening (18) and embraces an inner portion of the plunger (25), whereby pumping chamber (33) is defined between the pump body (11) and the sheath (30). The sheath (30) is deformable in response to reciprocatory movement of the plunger (25) to effect volume change within the pumping chamber (33). The sheath (30) comprises a first portion (31) which is generally stable, and a second portion (32) which embraces the plunger (25) and which deforms through expansion and contraction upon reciprocatory movement of the plunger. The first portion (31) defines a mounting flange (35) clampingly engaged with the pump body (11). The sheath (30) incorporates a recess (45) adjacent the open end thereof.
    Type: Application
    Filed: May 16, 2005
    Publication date: May 1, 2008
    Applicant: Seapower Pacific Pty Ltd
    Inventor: Alan Robert Burns
  • Patent number: 7325477
    Abstract: The present invention relates to a device for reducing energy losses in a machinery unit (1), having at least one part (4) which is arranged to rotate in fluid about a rotation axis (6) in a substantially closed chamber (3) delimited in the radially outward direction by means of a wall (18) extending around the rotation axis. The wall (18) has a radially inward facing wall surface (10) extending wholly or partially around the revolution, which wall surface is highly smooth and extends close to, but with an interspace (14) to the radially outer surface which is generated around the revolution by the rotary part (4). The interspace is suited to minimizing the rotating fluid volume and, at the same time, maintaining necessary width for a boundary layer in the fluid between the generated surface and the wall surface.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: February 5, 2008
    Assignee: Parker-Hannifin Corporation
    Inventor: Per-Ola Vallebrant
  • Patent number: 7267045
    Abstract: In an internal combustion engine for a motor vehicle, having a piston bearing surface divided into regions of different loading and having recesses for retaining lubricant arranged at distances which are shorter in regions of high loading than in regions of lower loading in a region with high loading, the distance between the recesses decreases from one recess to the next in the direction toward top dead center area with the smallest distance being at the top dead center position of the piston.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: September 11, 2007
    Assignee: DaimlerChrysler AG
    Inventors: Johannes Leweux, Wolfgang Pellkofer, Harald Pfeffinger
  • Patent number: 7246551
    Abstract: A sample handling tool includes a body having at least one plunger associated with a channel and arranged for axial movement within the channel. A seal is provided in the channel and sealingly engaged with a contact surface. The contact surface may include a surface feature, such that when contact surface moves, the seal and surface feature come into at least partial contact with one another. The seal may include an elastomeric member, such as an O-ring or X-ring, and the contact surface may be formed from any suitable material, including ceramic. The surface feature may take on a variety of forms including any suitable texture, surface porosity or include one or more grooves, holes, recesses, indentations, bumps, protrusions, etc., or a combination thereof.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: July 24, 2007
    Assignee: Protedyne Corporation
    Inventors: Peter Massaro, Michael Paschetto