Patents Examined by Henry C. Yuen
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Patent number: 7077080Abstract: A free piston engine has a pair of opposed cylinders on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each in a respective one of the cylinders, with a push rod connected therebetween. The push rod forms a fluid plunger. An outer piston assembly includes a pair of outer pistons, one each in a respective one of the cylinders, with a pull rod connected therebetween. The pull rod forms a fluid plunger. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output. A hydraulic coupler synchronizes the inner and outer piston assemblies.Type: GrantFiled: August 28, 2004Date of Patent: July 18, 2006Assignee: Ford Global Technologies, LLCInventors: Joachim Schmuecker, Ing Gunter Guerich, Herman-Josef Laumen, Adrain Tusinean, Kevin Fuqua
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Patent number: 7077096Abstract: In a multi-cylinder engine, a decrease of the load capacity of a main metal bearing between a bearing portion of a crankcase and a crank journal is prevented to achieve a reduction in the scale and a reduction in the weight of the engine while lubricating oil is supplied between a major end portion of a connecting rod and a crankpin. A pair of outermost crank journals are disposed most outwardly along an axial line of a crankshaft from among a plurality of crank journals have a length in the axial direction set greater than the length of the remaining crank journals in the axial direction. Crankpin oil paths extending from at least one of the two outermost crank journals to the crankpins are provided in the crankshaft while an oil supply source is connected to the crankpin oil paths at least at one of the outermost crank journals.Type: GrantFiled: July 22, 2004Date of Patent: July 18, 2006Assignee: Honda Motor Co., Ltd.Inventor: Minoru Matsuda
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Coolable annular support for intentionally cooled piston rings and method for the production thereof
Patent number: 7077077Abstract: The invention relates to a coolable annular support (1) for internally cooled piston rings, comprising an annular body (2) embodied as a circular ring and a cooling channel plate (3), the cooling channel plate (3) being a component of the cooling channel, and a method for the production thereof. The components forming the annular body (2) and the cooling channel plate (3) are connected together by means of laser beams from at least one laser in a continuous wave operation. The cooling channel plate (3) is U-shaped and has openings (6) which act as an inlet or an outlet for the cooling material in conjunction with tubular-shaped bodies. It is possible to simultaneously compensate variations in volume by different air temperatures during welding. At least one edge of the annular body (2) and the cooling channel plate form a cavity (5) for the cooling material by connecting the end areas of the limbs of the cooling channel plate to said edge of the annular body (2).Type: GrantFiled: July 4, 2002Date of Patent: July 18, 2006Assignee: A.I.M.L. GmbHInventor: Susanne Mayr-Kohn -
Patent number: 7073494Abstract: Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.Type: GrantFiled: March 5, 2004Date of Patent: July 11, 2006Assignee: Ford Global Technologies, LLCInventors: Michael John Cullen, Gopichandra Sumilla, Christian T. Goralski, Jr.
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Patent number: 7073492Abstract: A light metal cylinder crankcase for combustion engines has cylinder bushings with a running layer that forms the running surface and a rough, external bonding layer for bonding the cylinder bushings to the cylinder crankcase while pouring the cylinder crankcase. At least 60% of the bonding layer relative to the jacket surface of the bonding layer is connected with the casting material of the cylinder crankcase in a material tight manner.Type: GrantFiled: September 25, 2003Date of Patent: July 11, 2006Assignees: Atz-Evus Applikations-Und Technikzentrum, Hyrdro Aluminium Deutschland GmbHInventors: Dietmar Hoffmann, Josef Steibl, Frank Dornenburg, Markus Nolte, Achim Sach, Berthold Aumuller, Klaus Dotzler
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Patent number: 7069895Abstract: An outboard motor has a V-type engine in which in which a plurality of cylinders are arranged in a V-shape, a crankshaft is arranged substantially vertically, and an overhead valve (OHV)-type valve train is mounted. This outboard motor also includes an air intake system in which a carburetor is arranged above the engine and in a space of a V bank between the cylinders.Type: GrantFiled: May 27, 2005Date of Patent: July 4, 2006Assignee: Suzuki Kabushiki KaishaInventors: Jun Itoh, Hiroyuki Maejima, Hiroo Yamauchi, Masashi Takayanagi
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Patent number: 7069881Abstract: The invention relates to a cooled ring carrier that is cast into a piston for internal combustion engines. According to the invention, the zone of the ring carrier facing the cooling channel is coated, thereby preventing air from escaping from the cooling channel through the ring carrier material to the melt during alfination of the cooled ring carrier, and forming oxides.Type: GrantFiled: June 26, 2002Date of Patent: July 4, 2006Assignee: MAHLE GmbHInventor: Karlheinz Bing
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Patent number: 7069894Abstract: An intake manifold arrangement for an internal combustion engine in which transverse channels (12) are arranged between the intake channels upstream from the cylinder intakes of a multi-cylinder internal combustion engine equipped with exhaust gas recirculation. The connections (2, 3) for the introduction of clean air into the intake channels, the transverse channels (12) and a connecting flange (4) for the exhaust gas recirculation line are integrated into a one-piece component (1), preferably made of cast aluminum, which can be mounted on the respective cylinder intakes of the internal combustion engine, particularly a V engine.Type: GrantFiled: April 21, 2005Date of Patent: July 4, 2006Assignee: Mann & Hummel GmbHInventors: Klaus Gessner, Ludger Stuerwald
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Patent number: 7069900Abstract: A module for an internal combustion engine formed as a unit comprising an oil filter for lubricating oil of the engine and an oil separator for crankcase ventilation gas and which, as a whole, is attached to the engine by a flange connection with flow connections. An oil duct for oil to be filtered and an oil duct for filtered oil extend through the flange. A ventilation duct for ventilation gas and an oil return duct for separated oil also extent through the flange. A drain duct connected to the crankcase via the flange connection is provided for draining the oil filter upon a replacement of the filter element. The drain duct, the ventilation duct and the oil return duct are united in the flange connection and along at least a part of their length in the module in a single combined gas-and-oil duct.Type: GrantFiled: July 13, 2004Date of Patent: July 4, 2006Assignee: Hengst GmbH & Co., KGInventor: Wilhelm Ardes
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Patent number: 7069918Abstract: The present invention relates to an internal combustion engine cylinder head having an exhaust gas recirculation passage formed therein. The exhaust gas recirculation passage extending along the length of the cylinder head casting and disposed in a heat transfer relationship with a water jacket located within the cylinder head.Type: GrantFiled: July 22, 2004Date of Patent: July 4, 2006Assignee: Cummins Inc.Inventors: Jason Mackey, Ryo Fucinone
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Patent number: 7066116Abstract: An apparatus and method for transferring energy from an internal combustion engine to drive a load. The system includes a rapid response component, a valve system and an actuator. The rapid response component is configured to be operatively coupled to a combustion portion of the internal combustion engine. The rapid response component is also configured to draw a portion of energy from the combustion in the internal combustion engine and transfer the portion of energy as a fluid including pulsitile fluid flow. The valve system is operatively coupled to the rapid response component and is operable to receive and controllably direct the pulsitile fluid flow from the rapid response component. The actuator is operatively coupled to the valve system and is configured to be operatively coupled to the load. The actuator operates to receive the fluid from the valve system to drive the load operatively coupled thereto.Type: GrantFiled: July 29, 2004Date of Patent: June 27, 2006Assignee: Sarcos Investments LCInventors: Stephen C. Jacobsen, Marc Olivier, Shane Olsen, Mike Morrison
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Patent number: 7066119Abstract: A two-stroke engine includes a scavenging passage opening in a combustion chamber in a scavenging stroke to fill the combustion chamber with a working gas containing a fuel; and a scavenge filling chamber communicating through a communicating port with the scavenging passage and arranged to be filled with a non-working gas in a fuel weight concentration smaller than that of the working gas prior to the scavenging stroke. In the scavenging stroke, the scavenging passage and the scavenging filling chamber are made open in the combustion chamber and the non-working gas in the scavenge filling chamber is forced into the combustion chamber by the working gas inside the scavenging passage through the communicating port to scavenge the combustion chamber.Type: GrantFiled: February 15, 2005Date of Patent: June 27, 2006Assignee: Maruyama Mfg. Co., Inc.Inventor: Terutaka Yasuda
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Patent number: 7066155Abstract: A system and method of adjusting the rate of supplementary fuel flow to an engine while monitoring the operating characteristics of an engine. The amount of pressure to apply to a regulator valve is determined based at least in part upon the operating conditions of the engine and information included in a stored fuel grid.Type: GrantFiled: June 28, 2004Date of Patent: June 27, 2006Assignee: Autotronic Controls CorporationInventors: Brandon K. Uhde, Ezell R. Clarke, Stephen C. Masters, Douglas B. Waits
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Patent number: 7066130Abstract: A recoil starter has a guide surface with limited polar symmetry about the axis of the pull-rope limiting rotational orientation of the pull-handle in the at-rest position to less than three angular positions.Type: GrantFiled: November 18, 2004Date of Patent: June 27, 2006Assignees: Tohatsu Corporation, Brunswick CorporationInventors: Michael A. Purdy, Mark T. Lokken, Koichiro Takahashi
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Patent number: 7066134Abstract: In a vertical engine, a bulged portion protrudes upwards, in conformity to a partially cylindrical outer wall of uppermost one of cylinders, on an upper surface of a cylinder block forming a bottom wall of a chain chamber accommodating a chain for driving a camshaft and a balancer shaft through a crankshaft. A pair of oil return bores for returning an oil in the chain chamber to an oil pan are provided in lower portions of the bottom wall on opposite sides of an axis of the bulged portion. The oil which has lubricated the chain in the chain chamber flows so that it is distributed to the opposite sides of the axis, and the oil is returned smoothly from the oil return bores formed in the bottom wall to the oil pan.Type: GrantFiled: May 25, 2004Date of Patent: June 27, 2006Assignee: Honda Motor Co., Ltd.Inventors: Yoshihiko Fukuda, Hiroki Tawa, Kazuhiro Ishizaka
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Patent number: 7063081Abstract: A deterioration determining apparatus and a deterioration determining method are applied to an engine in which a feedback control of an air-fuel ratio is performed by calculating an air-fuel ratio correction coefficient based on an output of an oxygen sensor, and response of the air-fuel ratio correction coefficient with respect to the output of the oxygen sensor is set so as to be variable. In the deterioration determining apparatus and the deterioration determining method, a deterioration determining value concerning a determination as to whether the oxygen sensor has deteriorated is set so as to be variable according to the set response of the air-fuel ratio correction coefficient with respect to the output of the oxygen sensor, and the determination as to whether the oxygen sensor has deteriorated is made based on an inversion cycle of the output of the oxygen sensor and the deterioration determining value.Type: GrantFiled: March 5, 2004Date of Patent: June 20, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazuhiro Yamada
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Patent number: 7063074Abstract: An apparatus for protecting a fuel system component disposed on an engine body in a vehicle, the apparatus including a protector including a first wall and a second wall connected with the first wall. The first and second walls extend toward the engine body and cooperate with each other to surround the fuel system component. The second wall has one end opposed to the engine body with a clearance. A first fastening member fixes the first wall to the engine body.Type: GrantFiled: February 11, 2004Date of Patent: June 20, 2006Assignees: Nissan Motor Co., LTD, Aichi Machine Industry Co., Ltd., Renault s.a.s. societe par actions SimplifieeInventors: Takehiro Horibe, Koji Asano, Syoji Kobiyama, Akio Iwamoto, Takahiro Yata
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Patent number: 7059292Abstract: A cylinder block includes an inner block member having a cylinder liner portion and an outer block member having a cylinder outer wall portion. With the inner and outer block members assembled together, a water jacket is defined between the outer and inner circumferential surface. A first sealing surface of the cylinder liner portion is opposed to a second sealing surface of the cylinder outer wall portion below the water jacket, and a liquid gasket is provided between the first and second sealing surfaces. A continuous projection is provided on the first sealing surface. When the cylinder liner portion is inserted into the space defined by the cylinder outer wall portion, the projection prevents the gasket from being displaced to a trailing side on the cylinder liner portion with respect to the inserting direction. As a result, the clearance between the block members is sealed reliably.Type: GrantFiled: December 27, 2004Date of Patent: June 13, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Minoru Sugano, Kazunari Takenaka
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Patent number: 7059291Abstract: An internal combustion engine, includes: a cylinder head including; a bearing holder; and an integrated cam bracket held to the cylinder head, in a manner that a first cam shaft and a second cam shaft in parallel with each other in a direction of a line of a cylinder are sandwiched between the cylinder head and the integrated cam bracket. The integrated cam bracket includes; a first side frame and a second side frame, bearing beams bridging across the first side frame and the second side frame, the first cam shaft and the second cam shaft being rotatably born by the bearing beams with the bearing holder, a center beam disposed between the first side frame and the second side frame and extending in parallel with the first side frame and the second side frame, and a void portion collinear with the center beam and free from the center beam.Type: GrantFiled: March 9, 2004Date of Patent: June 13, 2006Assignees: Nissan Motor Co., Ltd., RENAULT s.a.s. societe par actions simplifieeInventors: Tarou Ueno, Hajime Oota
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Patent number: 7059300Abstract: An ignition control apparatus for an internal combustion engine for preventing ignition control upon occurrence of rotation reversal of the engine includes a rotation sensor (3) disposed in opposition to projections (11, 12) of a rotor (1), and an ignition timing control circuit (4) for fetching a rotation sensor signal (R) as a reference angular position signal to output a driving signal (P) to the ignition circuit (6). A retarded ignition control module (46) of the control circuit (4) measures a period of a specific interval of the sensor signal (R) while generating a driving signal (P) in dependence on the specific interval period. An arithmetic module (46) of the retarded ignition control module (46) sets an expectation period for accepting a succeeding sensor signal on the basis of the specific interval period to validate only the signal inputted during the expectation period.Type: GrantFiled: March 11, 2004Date of Patent: June 13, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Toru Ikeda