Patents Examined by Jeffrey L. Yates
  • Patent number: 4241706
    Abstract: A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a small arc each time the valve completes its opening and closing cycle. Concentric coil compression springs resist opening movement of the poppet valve and both of these springs are supported by a valve retainer which rests on the rotator plate. The lower ends of both springs are supported at the same elevation and the springs are centralized by means of integral fingers struck from the retainer ring to hold one or both springs in central position.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: December 30, 1980
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Shimada, Takenori Makino
  • Patent number: 4228771
    Abstract: A hydraulic lash adjuster for valve gear of an internal combustion engine, the lash adjuster being of the type which operates from oil received under pressure from a gallery provided in the engine lubricant supply system. The body of the adjuster has a movable plunger with a one-way check valve for admitting and retaining oil in a chamber between the adjuster body and the plunger. A portion of the plunger includes a pivot surface for pivotally engaging associated components of the valve gear with a reservoir formed in the plunger which communicates with a one-way valve for admitting oil to the chamber. An inlet metering means including an annular metering land provides exclusive lubricant communication to the reservoir from an oil entry port in the body.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: October 21, 1980
    Assignee: Eaton Corporation
    Inventor: John J. Krieg
  • Patent number: 4215658
    Abstract: A kit for converting an automobile engine from a conventional water pump driven by mechanical engine power to electrical drive which is separately controllable independently of engine operation. The kit includes a conventional air conditioning blower motor, and a bracket which permits motion of the electric motor on the bracket, whereby the motor, belts, pulleys, etc. can be changed without having to remove the bracket from the water pump on the engine.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: August 5, 1980
    Assignee: W. R. Grace & Co.
    Inventors: Richard J. Smith, Jr., Ralph R. Bellino
  • Patent number: 4214560
    Abstract: The invention concerns an improved cylinder head.The cylinder head is fixed to the engine block by means of two short bolts 13 and 14 and four long bolts 15 to 18, all arranged at the points of a regular hexagon. The inlet and exhaust manifolds 20 and 21 are on the same side, on each side of the bolt 13, opposite to the rocker arm push-rods 9 and 10, and an injector carrier 34 placed obliquely above the bolt 14. The cooling liquid arrives under the inlet manifold 20, passes between the valves 5 and 6, and then directly cools the injector carrier 34.Application: reduction in the bulk of the upper part of the engine as regards width.
    Type: Grant
    Filed: May 4, 1978
    Date of Patent: July 29, 1980
    Inventor: Jean M. Nikly
  • Patent number: 4212270
    Abstract: A cooling system for an internal combustion engine, having a first circuit means for circulating cooling water through a cylinder block and a second circuit means for circulating cooling water through a cylinder head and temperature control means for controlling the temperature of the cooling water circulating through the first and the second circuit means substantially independently from each other so that the temperature of the cooling water circulating through the first circuit means is higher than that of the cooling water circulating through the second circuit means.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: July 15, 1980
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Nakanishi, Takeshi Okumura
  • Patent number: 4211192
    Abstract: The camshaft is constructed in portions each of which has an integral flange at one end and a releaseably secured discoid member at the other end. The flange of one shaft portion is secured to the discoid member of an adjacent shaft portion by means of screws. Each shaft portion has a plurality of cams shrink fitted thereon.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: July 8, 1980
    Assignee: Sulzer Brothers Ltd.
    Inventors: Peter Baumgartner, Robert Kuhne
  • Patent number: 4210109
    Abstract: An internal combustion engine has at least one cylinder acting as an air pump for the admission of scavenging air into the remaining cylinders.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: July 1, 1980
    Assignee: Nissan Motor Company, Limited
    Inventors: Yasuo Nakajima, Michio Onoda, Kunihiko Sugihara, Shinichi Nagumo
  • Patent number: 4207055
    Abstract: A cigarette lighter employing a combustible gas uses electric means for heating the combustible gas toward its flash point. The electric means is aided by catalytic or thermo-electric means to reduce the power supplied by a self-contained battery. In one embodiment, the combustible gas contains a component which reacts with a catalyst to provide an additional heat increment to the gas in order to reduce the amount of electricity required. In other embodiments, a thermo-electric generator, heated by the flame of the lighter, generates electricity which recharges a rechargeable battery.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: June 10, 1980
    Assignee: Tokyo Pipe Co., Ltd.
    Inventor: Noboru Tanaka
  • Patent number: 4206726
    Abstract: A reciprocating engine including a block having at least one cylinder therein, a piston reciprocally received in the cylinder and having a crown, a depending skirt and a ring-receiving groove on the skirt near the crown. The piston has a central cavity terminating near the crown and a coolant-receiving passage in heat exchange relationship to the groove. A nozzle is stationarily mounted on the engine and has first and second jets, the first jet directing coolant to the cavity and the second jet directing coolant to the coolant-receiving passage, both for all operating positions of the piston within the cylinder. A filtered oil supply for the nozzle is provided.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: June 10, 1980
    Assignee: Caterpillar Tractor Co.
    Inventors: John L. Johnson, Jr., Robert M. Vize, Noel D. Wiggins
  • Patent number: 4205634
    Abstract: Mechanism for varying the timing of the valves of an internal combustion engine to obtain optimum efficiency and performance of the engine throughout a substantial portion of its operating speed range, wherein cam means for at least each intake valve is mounted on a rotatable cam shaft of the engine. Each cam means includes at least one and preferably a pair of axially spaced first cam members contoured to provide a first timing for their associated valves such as to provide optimum performance throughout one operating speed range of the engine and a second cam member of smaller size than and positioned between the first cam members and contoured to provide optimum performance throughout another operating speed range. Timing of the valves is normally controlled by the first cam members acting through linkage connected to the valves, and a plurality of elongated finger followers are provided for coaction with the second cam members to render them effective to control the timing of the valves.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: June 3, 1980
    Inventor: Edward M. Tourtelot, Jr.
  • Patent number: 4204486
    Abstract: A V-shaped, forced air-cooled engine includes a radial flow cooling fan mounted in front of the crankcase, within a housing containing air passageways leading to the cylinders on the opposite sides of the engine. The air passageways are constructed so as to assure the same amount of cooling air intake for each cylinder, the threshold areas of each passageway being provided with rounded surfaces shaped so as to assure a minimum of hissing sound and other noise caused by the moving, intake airstream.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: May 27, 1980
    Assignee: Kubota, Ltd.
    Inventors: Itsusuke Nakagawa, Tokuichi Aoyama
  • Patent number: 4202296
    Abstract: A quiet cooling system for internal combustion engines includes a radial impeller and a ring radiator. The ring radiator is disposed in the vicinity of the circumference of the radial impeller and is spaced at a distance from the impeller. The ring radiator can be made integral or in the form of segments. The radiator includes cooling water tubes which are to carry water and have fins fastened thereto. The cooling water tubes run parallel to the fan axis and are positioned parallel to the flow direction of cooling air leaving the radial impeller.
    Type: Grant
    Filed: December 13, 1977
    Date of Patent: May 13, 1980
    Assignee: Suddeutsche Kuhlerfabrik Julius Fr. Behr GmbH & Co. K.G.
    Inventors: Manfred Nonnenmann, Kurt Hauser, Gebhard Schwarz
  • Patent number: 4201174
    Abstract: A rotary valve system for a motor and the like includes a flow conduit and rotary valve means interposed in the flow conduit. Intermittent sealing means are provided for preventing flow through the flow conduit, comprising a sealing surface intermittently positionable in stationary, sealing relationship across the conduit. Means are also provided for moving the sealing surface into such stationary sealing relationship with the flow conduit, and out of sealing relationship with the flow conduit in a manner correlating with the operation of the rotary valve means, to facilitate sealing as the valve operates.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: May 6, 1980
    Assignee: Alto Automotive, Inc.
    Inventor: Tony E. Vallejos
  • Patent number: 4201162
    Abstract: Serious racers strive to squeeze as many revolutions per minute as possible out of their engines. They often use exotic metals like titanium in efforts to minimize the weight of some reciprocating parts. Almost exclusively, serious racers use titanium valve spring retainers to obtain higher speeds. This invention relates to an improved valve spring retainer for use in high performance engines. More particularly, it relates to an aluminum valve spring retainer which is lighter and less costly than titanium retainers of approximately equivalent strength.
    Type: Grant
    Filed: May 12, 1978
    Date of Patent: May 6, 1980
    Inventor: Frank H. Speckhart
  • Patent number: 4201166
    Abstract: An air to fuel ratio control system for an internal combustion engine having a fixed venturi type carburetor is disclosed. The air to fuel ratio control system comprises a device for extracting an atmospheric pressure within a venturi or a pressure corresponding to a relieved venturi vacuum, a device for extracting a static fuel pressure downstream of a main jet provided in a fuel path, a device for comparing those pressures directly or indirectly and a device for controlling the static fuel pressure in accordance with an output of the detecting device. Control is made such that the difference between those pressures is always maintained substantially constant. The air to fuel ratio control system may further comprise a device for detecting composition of exhaust gas of the engine.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: May 6, 1980
    Assignee: Hitachi, Ltd.
    Inventors: Yutaka Nishimura, Yoshishige Oyama
  • Patent number: 4200067
    Abstract: A hydraulic valve actuator and fuel injection system for an internal combustion engine includes an engine driven pump, similar to a diesel fuel metering and distributing pump, which is used to sequentially supply pressurized fuel to each of a plurality of hydraulic actuator plungers positioned to effect opening movement of an associated normally closed inlet valve of the engine, the hydraulic line to each actuator plunger having a solenoid valve associated therewith for controlling flow from the hydraulic line to a relatively low pressure drain conduit whereby to control inlet valve lift duration. Each actuator plunger, during inlet valve opening movement, is used to pressurize liquid fuel for injection into the induction fluid flow to an associated combustion chamber of the engine.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: April 29, 1980
    Assignee: General Motors Corporation
    Inventor: Myron U. Trenne
  • Patent number: 4200065
    Abstract: A method for preventing undesirable heat losses in a cooling system for liquid-cooled vehicular internal-combustion engines by affecting the flow at the connections of the lines to and from the header tank of the cooling system by measures commonly practiced in flow engineering such that the pressure will be the same at the inlet and the outlet of the header tank, so that with the thermostat closed no coolant is allowed to flow through the header tank and on through the radiator. With a cooling system having an engine vent line which connects to the header tank this method produces, by affecting the flow in the engine vent area and with the engine running and the thermostat closed, a pressure at the connecting point of the vent line for engine venting which is equal to that prevailing at the entry of the vent line to the header tank.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: April 29, 1980
    Assignee: Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
    Inventor: Uwe Buddenhagen
  • Patent number: 4200066
    Abstract: The cage for the valve seat is provided with cooling ducts which are uniformly spaced about the cage. Alternating ducts are used as coolant supply ducts while the remaining ducts are used as exhaust ducts. The ducts are arranged to uniformly cool the cage and valve seat. Suitable cross ducts are used to achieve a uniform distribution of the coolants supplied to the cage as well as a uniform removal of a coolant.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: April 29, 1980
    Assignee: Sulzer Brothers Limited
    Inventor: Ernst Berchtold
  • Patent number: 4198935
    Abstract: In an internal combustion engine its crankcase defines an oil reservoir and a pump receptacle. A crankshaft journaled in the crankcase carries a crank in the reservoir. A cylinder fixedly mounted on the crankcase is formed with a cooling jacket which communicates with the pump receptacle through communicating bores in the cylinder and crankcase. A pump shaft rotatably secured in the crankcase in the receptacle carries an impeller for common rotation about an axis parallel to the axis of rotation of the crankshaft, and the motion transmitting input member of a drive train, a toothed wheel, is mounted on the crankshaft next to a spur gear which meshes with a spur gear on the pump shaft.
    Type: Grant
    Filed: March 3, 1978
    Date of Patent: April 22, 1980
    Assignee: Fichtel & Sachs AG
    Inventors: Hans Seibt, Rudolf Schlenz
  • Patent number: 4195613
    Abstract: Hot gas engine units of the type having four parallel cylinders arranged in two parallel rows of two cylinders per row may be effectively balanced by a minimum of counterweight masses. The engine pistons are connected to two parallel crank shafts and four primary counterweights are positioned on the crankshafts each diametrically opposite a respective crank. The crankshafts engage a common gear wheel rotating opposite to but at the same angular speed as the two crank shafts, and the gear wheel is mounted on a third shaft parallel to the two crank shafts. Secondary counterweights including at least two axially spaced, oppositely directed secondary counterweights positioned on the third shaft are used to cancel the moment about the engine vertical axis produced by the primary counterweights.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: April 1, 1980
    Assignee: Kommanditbolaget United Stirling (Sweden) AB & Co.
    Inventors: Jan C. Bratt, Bengt-Ove M. Moodysson