Mechanical Patents (Class 123/185.1)
  • Patent number: 10710449
    Abstract: A geartrain for a powertrain system is disposed to transfer mechanical power between an internal combustion engine, an electric machine and a driveline. The geartrain includes a flywheel, a torque converter, an off-axis mechanical connection and a transmission gearbox. The off-axis mechanical connection includes a first element rotatably coupled to a second element. The flywheel is coupled to a crankshaft of the internal combustion engine. The torque converter includes a pump, a turbine and a pump hub, and the transmission gearbox includes an input member. The pump of the torque converter is coupled to the flywheel, and the pump hub is coupled to the first element of the off-axis mechanical connection. The second element of the off-axis mechanical connection is coupled to a rotor of the electric machine, and the turbine of the torque converter is coupled to the input member of the transmission gearbox.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: July 14, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Derek F. Lahr, Peter Beller, Chunhao J. Lee
  • Patent number: 10072627
    Abstract: A starting system for a vehicle including an internal combustion engine having a crankshaft includes a pinion gear driven by a starter motor. A drive plate includes a set of teeth in constant meshed engagement with the pinion gear. A one-way clutch assembly is adapted to drivingly interconnect the drive plate and the crankshaft. The clutch assembly includes an inner race adapted to be fixed for rotation with the crankshaft, an outer race fixed for rotation with the drive plate, and a plurality of rollers positioned radially therebetween. One of the inner and outer races includes circumferentially spaced apart cam surfaces. The clutch assembly also includes a cage for positioning the rollers in a circumferentially spaced apart alignment with the cam surfaces and a roller bearing assembly positioned axially offset from the one-way clutch rollers to rotatably support the outer race on the inner race.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 11, 2018
    Inventors: Sean Steele, David Dorigo, Adrian C. Cioc
  • Patent number: 9797359
    Abstract: The invention relates to a starting device (10) for an internal combustion engine, the starting device (10) comprising a hub (12; 70) configured to drivingly engage an internal combustion engine when the hub (12; 70) is rotated in a first direction (A); a pulley (14; 47; 60) interconnected with the hub (12; 70) by a spring (23; 41); a shaft (21) on which the pulley (14; 47; 60) and hub (12; 70) are mounted independently rotatable; a flexible member (16) attached to and coiled about the pulley (14; 47; 60); and where the spring (23; 41) coupled at a first end (26; 53) to the hub (12; 70) and at a second end (28; 54) to the pulley (14; 47; 60). The pulley (14; 47; 60) comprises a recess (15) arranged to receive the flexible member (16), which recess has the shape of a conical helix having a first end (15A) with a first diameter and a second end (15B) with a second diameter, larger than the first diameter; and is attached to the pulley (14; 47; 60) at the second end (15B).
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: October 24, 2017
    Assignee: HUSQVARNA AB
    Inventors: Stefan Kullberg, Joakim Persson, Anders Hansson, HÃ¥kan Fransson
  • Publication number: 20150136059
    Abstract: A kick start engine starter assembly is provided herein, which is a universally adaptable kick start device for use on most push mowers and other pull-start engines, allows a user the capability to pull start a hand start lawnmower with the assistance of the user's leg.
    Type: Application
    Filed: September 27, 2014
    Publication date: May 21, 2015
    Inventor: Gordon Mulligan
  • Publication number: 20150075476
    Abstract: An engine generator includes a four-cycle engine including a cylinder, one inlet port that supplies air-fuel mixture into the cylinder, one inlet valve that opens/closes the inlet port, a piston reciprocable inside the cylinder, a crank shaft that converts reciprocating movement of the piston into rotating movement, a connecting rod that connects the piston and the crank shaft to each other, and a recoil starter that rotates the crank shaft. The engine has a geometric compression ratio not smaller than about 8.5. The valve closure timing of the inlet valve is defined as a timing when the closing inlet valve has a valve lift of about 1 mm, and is within a range from after the bottom dead center to the top dead center.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventor: Atsushi SUZUKI
  • Patent number: 8973547
    Abstract: An engine starter that employs a clutch between a flywheel or flex plate and a plate structure that is configured to receive rotary power from a starter motor through a transmission. The transmission may include ring and pinion gears or a belt that transmits rotary power between pulleys.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: March 10, 2015
    Assignee: Litens Automotive Partnership
    Inventors: John R. Antchak, James W. Dell, Warren Williams, Jun Xu
  • Patent number: 8943914
    Abstract: A starting system for a hybrid vehicle includes a pinion gear driven by a starter motor and a drive plate having a set of teeth in constant meshed engagement with the pinion gear. A one-way clutch assembly drivingly interconnects the drive plate and an engine crankshaft and includes an inner race fixed for rotation with the crankshaft, an outer race coupled for rotation with the drive plate and a plurality of rollers positioned radially therebetween. The outer race includes a first set of teeth drivingly engaging a second set of teeth on the drive plate and arranged to allow the outer race to rotate about an axis misaligned with an axis of rotation of the drive plate. A spring engages the drive plate and the outer race to urge the first and second sets of teeth into alignment with one another.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 3, 2015
    Assignee: Magna Powertrain Inc.
    Inventors: Sean Steele, Adrian Cioc
  • Patent number: 8944021
    Abstract: The invention pertains to a device for starting an internal combustion engine for handheld equipment such as chain saws, lawn mowers, lawn trimmers and the like, or for vehicles such as mopeds, boats or miniature aircraft. The starting device features an output element into which a starter torque can be introduced when the starting device is actuated. The output element is functionally connected to a crankshaft of the internal combustion engine in order to introduce a crankshaft torque therein. The functional connection between the output element and the crankshaft introduces variable crankshaft torque into the crankshaft depending on the rotational angle of the crankshaft at a constant starter torque. This advantageously improves force or torque characteristics for largely operating the starter device independently of the compression phase and the expansion phase of the internal combustion engine.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 3, 2015
    Assignee: DOLMAR GmbH
    Inventor: Christian Kellermann
  • Publication number: 20140245984
    Abstract: Mobile assembly (500) for meshing with a toothed starter ring gear (C) of a heat engine comprises: a drive unit (1) provided with a pinion (11); a starter drive element (118); a pivoting control lever (20) including a lower forked end having two arms; and a friction clutch (300), pinion being rotationally fixed with a casing partially housing the drive element (118) and comprising the reaction plate (112) of the clutch. The lever (20) is associated with means for closing the clutch and is configured to move the casing axially, while the closure means are configured to move the drive element axially in order to tighten the friction clutch. The heat engine starter comprises such a mobile assembly.
    Type: Application
    Filed: July 23, 2012
    Publication date: September 4, 2014
    Applicant: Valeo Equipments Electriques Moteur
    Inventors: Guillaume Seillier, Christian Mornieux, Alexis Chalmet
  • Publication number: 20140076259
    Abstract: There is provided a vehicle starting apparatus that reduces vibration of an engine caused when the engine starts so that vibration of the vehicle can be decreased. A vehicle starting apparatus according to the present invention is provided with an engine starting apparatus that starts an engine mounted in a vehicle, wherein before the engine is ignited, the engine starting apparatus makes a cranking rotation speed of the engine lower than a rotation speed corresponding to the resonance frequency of the engine, and after the engine has been ignited, the engine starting apparatus increases the rotation speed of the engine up to a rotation speed that is the same as or higher than said rotation speed corresponding to the resonance frequency.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 20, 2014
    Inventor: Masahiko Fujita
  • Patent number: 8631779
    Abstract: An internal combustion engine with a kick starter for ensuring layout flexibility of a kick shaft while suppressing an enlargement of the engine. An output shaft is disposed at a position overlapped with a driven pulley from a side view. A power transmission mechanism is disposed between the output shaft and the driven shaft pulley in a crankcase. A kick shaft is disposed at a position below and forward of the driven pulley shaft, which is not overlapped with the driven pulley from the side view. A kick intermediate shaft is disposed between the kick shaft and the crankshaft such that the kick starter is mounted on the crankcase.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: January 21, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventor: Katsuya Abe
  • Patent number: 8534254
    Abstract: In order to create a starter device (100) for an internal combustion engine of a manually guided engine unit, wherein the device comprises a housing (10) and a cable drum (11) which can be rotated relative to the housing (10) about a rotational axis with a starter pull for starting the engine, and has a recoil spring space (14), which is arranged between the housing (10) and the cable drum (11), for a recoil spring (13), in order to move the cable drum (11) into its original position after a rotational movement of the starter, wherein sealing of the recoil spring space (14) is provided, which starter device on the one hand prevents dirt from penetrating into the recoil spring space and on the other hand has a simple design, it is proposed that the seal (15) is spaced apart radially from the rotational axis (X) to such an extent that the recoil spring space (14) is formed by a wall (16) of the cable drum (11) and an approximately opposite wall (17) of the housing (10).
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 17, 2013
    Assignee: Dolmar GmbH
    Inventors: Carsten Ziegs, Boris Kaun
  • Publication number: 20130125852
    Abstract: A starting element has a housing (4) and a guide pin (6) for centering the starting element during assembly. The guide pin (6) is made of sheet metal and is connected to the housing (4) by means of a positive connection. A method of producing such housing of a starter element is also disclosed.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 23, 2013
    Applicant: ZF Friedrichshafen AG
    Inventor: ZF Friedrichshafen AG
  • Publication number: 20120090569
    Abstract: A drive mechanism 1 comprises a combustion engine 3 and a start system 5 which has an output 7 that is connected to a camshaft 9 of the combustion engine. The start system further includes a flywheel 11 and connecting means connecting the flywheel to the output. The connecting means comprise a clutch 13 and a gear reduction 15. The start system 5 further includes a drive source 17 formed by an electromotor which is directly connected to the flywheel 11 or which is connected to the connecting means between the clutch 13 and the flywheel 11. The maximum power that can be delivered by the drive source 17 is just sufficient to maintain the flywheel at the proper r.p.m. If the drive source 17 is turned on, it thus delivers just sufficient power to maintain the flywheel at the proper r.p.m. The maximum power of the drive source is in this case 50 W.
    Type: Application
    Filed: November 19, 2009
    Publication date: April 19, 2012
    Applicant: DTI Group B.V.
    Inventors: Roell Marie Van Druten, Bas Gerard Vroemen, Alexander Franciscus Anita Serrarens
  • Patent number: 7980218
    Abstract: In a pump driving device in an engine, driving a pump shaft of a pump mounted to an engine body by a valve-operating cam shaft supported by the engine body, a bolt is threadedly engaged with one end of the cam shaft, the bolt having a head portion in which a polygonal hole is formed, and a polygonal shaft portion is formed at one end of the pump shaft so as to be fitted into the polygonal hole. The pump shaft is driven by the cam shaft via the polygonal hole and the polygonal shaft portion. Thus, a large driving torque can be transmitted from the cam shaft to the pump shaft without reducing any effective support surface of a journal portion of the cam shaft.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: July 19, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventor: Masanori Tsubouchi
  • Publication number: 20110120406
    Abstract: The invention relates to a starter device which is used to start internal combustion engines, which comprises an electromagnetic toe-in mechanism (10) and a start-stop-mechanism, which in a stop-phase of the internal combustion engine, even during and/or after stopping the internal combustion engine, a positioned state of the toe-in mechanism (10) is provoked, such that when the internal combustion engine is subsequently started, it is already in the positioned state. According to the invention, a locking device (20), which is used to lock the toe-in mechanism (10) in the positioned state, is embodied in such a manner that it can be controlled such that the electromagnetic toe-in mechanism (10) is maintained in the advanced position during the stop-phase.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 26, 2011
    Inventor: Jochen Laubender
  • Patent number: 7712448
    Abstract: An internal combustion engine has a starter device, wherein the starter device has a drive member and a driven member and a locking mechanism for coupling the drive member and the driven member to one another for starting the internal combustion engine. The locking mechanism has at least one pawl that is pivotably supported on the driven member. For decoupling the drive member and the driven member, the at least one pawl is pivoted outwardly relative to an axis of rotation of the starter device. The at least one pawl has at least one pivot position in which the at least one pawl contacts at least one contact area of the driven member. The at least one pawl has at least one cover covering the at least one contact area.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: May 11, 2010
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Helmut Zimmermann
  • Patent number: 7658176
    Abstract: A starter device for an internal combustion engine has a drive element and a output element. The drive element enables driving the starter device in rotation. The output element is supported rotatably about an axis of rotation and has a coupling device for releasably coupling the starter device to the crankshaft. A coil spring is arranged operatively between drive element and output element in an axial direction between a first abutment at the drive element and a second abutment at the output element. The first and second abutments have a first spacing relative to one another at least at one circumferential location in a first area and a second spacing relative to one another in a second area. The first and second spacing are measured parallel to the axis of rotation. The first spacing is smaller than the second spacing. The first area is radially outside of the second area.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: February 9, 2010
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Antonio Fattorusso, Ulrich Kapinsky
  • Publication number: 20090188459
    Abstract: A process for starting a direct-injecting internal-combustion engine is disclosed. The process includes triggering a separate drive for adjusting the camshaft for causing an angular position change between the crankshaft and the camshaft until the separate drive rotates the crankshaft such that a working medium is compressed by a piston in a cylinder of the internal-combustion engine. The position of the pistons of the internal-combustion engine is determined by using position determining devices to identify the cylinder of the internal-combustion engine in which the working medium is compressed. Fuel is injected into the cylinder in which the working medium is compressed when the cylinder is in a proximity of an upper dead center to start the internal-combustion engine.
    Type: Application
    Filed: September 26, 2008
    Publication date: July 30, 2009
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Marco FLECKNER, Dietmar SCHWARZENTHAL
  • Publication number: 20090183707
    Abstract: An operation control system for an engine having at least one piston includes an engine control unit which drives a fuel pump for supplying fuel to an injector. The engine control unit is configured to perform a control function to cut the electric power supply to the fuel pump when the piston arrives at a position in the vicinity of compression top dead center in the cylinder of the engine.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 23, 2009
    Inventor: Yuichi Sasaki
  • Patent number: 7395794
    Abstract: In an engine which starts using a recoil starter, ignition chance during inertia rotation is not missed. If the engine 42 is rotated by the recoil starter 41, output of a power generator which is directly connected to the engine 42 is increased, and a CPU 27 is reset at timing t0. At timing t1, if pulse P1 is input from a revolution number sensor 29 to the CPU 27, the CPU 27 outputs first ignition instructions when predetermined time T1 is elapsed (t2). At timing t3, second pulse P2 is input. At that time point, since the CPU 27 is normally operated, ignition timing is obtained from an ignition timing map 30 in accordance with the revolution number calculated by a time interval between the pulses P1 and P2, and the ignition instructions are output at timing t4 in accordance with the ignition timing. Thereafter, the ignition timing is determined using the ignition timing map 30.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 8, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Riyuuhei Tamamoto, Makoto Yamamura, Mitsuyoshi Kanai
  • Patent number: 7228222
    Abstract: An engine start control device which in a time period from the start of a starting operation by a starter for starting an engine to the start of the engine, reads out substitute values used at the time of starting the engine, instead of reading out backup data used for normal operation control of the engine, and after starting of the engine, reads out the backup data instead of the substitute values.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: June 5, 2007
    Assignee: Keihin Corporation
    Inventor: Masato Ono
  • Patent number: 6886518
    Abstract: A retainer retains a release member for engine valves of an internal combustion engine. The release member causes an engine valve to be actuated depending on various operating conditions of the engine, such as engine speed or oil level. The retainer retains the release member to at least one of a cam lobe and a cam gear. The release member may be substantially L-shaped and centrifugally responsive. Alternatively, the release member may be a substantially U-shaped yoke that at least partially surrounds a cam shaft. The retainer includes a pin that is substantially transverse and non-intersecting to the cam shaft. The pin may be substantially straight and interconnect to bosses that project from the cam gear. Alternatively, the pin may be substantially C-shaped and extend into apertures in the cam gear that extend in the axial direction of the cam gear.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: May 3, 2005
    Assignee: Briggs & Stratton Corporation
    Inventors: Gary J. Gracyalny, John H. Thiermann
  • Patent number: 6810759
    Abstract: An engine starter includes a recoil device, and a recoil cover for accommodating the recoil device therein also covers a flywheel operatively rotated with the recoil device, ring gears integrally fixed to the flywheel, and pinions which are components of a starter device and engage with the ring gears when the starter device is operated. The recoil cover is provided with a drain mechanism, including a boss formed integrally with the recoil cover, a drain pipe projected on the boss, and a drain cap plugged to the drain pipe and made of rubber so that it is manually detachable therefrom without using a tool. Thus a liquid such as muddy water which has entered from the recoil cover can be removed simply by pulling out the drain cap.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: November 2, 2004
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Fusao Tachibana
  • Patent number: 6396388
    Abstract: A remote starting device intended chiefly for use in cars that utilizes a pulse signal that is generated by either an RF transmitter, a keypad, or a telephone. The pulse signal is transmitted to a rotating drive attached to the subject ignition. When the device receives the pulse signal, the rotating drive rotates to activate the ignition of the car, thereby starting the engine. The remote starting device operates independently of the car's circuitry using only the car's battery, via the cigarette lighter, as a power source. There is no need to modify the car's electrical system to install the device. This greatly simplifies installation of the device and does not jeopardize any applicable warranty on the car.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: May 28, 2002
    Inventor: Dawei Dong
  • Patent number: 6202625
    Abstract: The invention relates to a driving device for a motor driven vegetation cutter or the like with a two cycle engine showing an injection valve (12), a coupling placed in a coupling box (15), air intake and air blow-off devices, a fuel pump (17), a starter box (18) as well as eventual other additional sets. It is proposed so as to create a compact arrangement of the parts of said driving device with an optimal cooling and combustion to place the coupling box (15) and the starter box (18) on opposed sides of the two cycle engine and to direct the injection valve (12) with its jet direction onto the cylinder head or the ignition plug (11).
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: March 20, 2001
    Assignee: Dolmar GmbH
    Inventors: Andreas Singer, Jochen Schoenhaar, Torsten Haussner