Patents Examined by Clarence R. Gordon
  • Patent number: 4096828
    Abstract: A rotary piston internal combustion engine of the Wankel type for reducing unburned detrimental components such as NOx, HC, CO, etc. in exhaust gas without decrease of engine performance which comprises a first combustion chamber communicating by means of a passage means with a second combustion chamber formed between a trochoidal inner peripheral surface of a housing and a side surface of a rotary piston, said first combustion chamber being formed radially outside of said trochoidal inner peripheral surface, the volume of said first combustion chamber being 35 to 65% of the sum of both said combustion chambers at the top dead center (T.D.C.) of the engine, a fuel injection nozzle and an ignition plug provided in said first combustion chamber, said passage means opening onto said trochoidal inner peripheral surface in the range of 15.degree. before the junction of the two arcuate portions of said trochoidal inner surface to 30.degree.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: June 27, 1978
    Assignee: Toyo Kogyo Co. Ltd.
    Inventors: Haruhiko Satou, Yoshinori Honiden, Motoyuki Hayashida, Mutsuo Wakamoto
  • Patent number: 4095420
    Abstract: A thrust augmented twin spool turbofan engine system to control instability at high altitude, low Mach number conditions wherein an engine electronic control monitors engine inlet temperature, engine burner pressure and Mach number, and inhibits fuel flow to the outermost augmentor segment when the engine inlet temp drops below 25.degree. F, when engine burner pressure drops below 120 psia or when the Mach number drops below 0.4. When fuel flow to the outermost augmentor is inhibited, upmatch logic modifies the variable nozzle AJ trim signal closed 8% and the power level angle trim signal up 4.degree..
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: June 20, 1978
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Robert B. Abernethy, Edmond Preti, John P. Rembold
  • Patent number: 4094209
    Abstract: A knob assembly for use, either singly or in pairs, has portions of two shaped members seated in face-to-face relationship in an opening in an operating lever. One of said members has an extension which projects substantially across the axial end of the lever so as to protect said end of the lever.
    Type: Grant
    Filed: March 17, 1977
    Date of Patent: June 13, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: Richard Van Rossem, Michael B. Hyde
  • Patent number: 4091644
    Abstract: A reversible turbine pump for producing bi-directional liquid flow wherein there is provided a housing having a substantially annular outer wall and top and bottom walls closing the ends of the outer wall. Within the housing there is a rotatable impeller having an annular series of blades extending outwardly and forming with the wall a toroidal space. First and second spaced outlet openings are provided in the housing and also first and second circumferentially spaced channels between the impeller and each of the outlet openings in liquid flow communication with the toroidal space. A dam is located between the channels. An inlet opening is located in each of the channels.
    Type: Grant
    Filed: April 8, 1977
    Date of Patent: May 30, 1978
    Assignee: General Electric Company
    Inventor: John Bochan
  • Patent number: 4090455
    Abstract: A coal fired steam generating system including an auxiliary oil fired burner combined with an air heater. The air heater provides heated air that is adapted to heat and dry the coal for combustion, while hot products of combustion exhausting from the oil fired burner supply heat to a precipitator that raises its operating temperature to increase its collecting efficiency.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: May 23, 1978
    Assignee: Combustion Engineering, Inc.
    Inventor: Michael Scott McCartney
  • Patent number: 4090663
    Abstract: An improved fan controller for forced-air temperature conditioning apparatus for buildings, such as for example, forced warm air furnaces in which the fan turn-off is controlled as a function of the difference in temperature between the plenum temperature and the return air temperature.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: May 23, 1978
    Assignee: Honeywell Inc.
    Inventors: Ulrich Bonne, James R. Tobias
  • Patent number: 4089307
    Abstract: An internal combustion engine having at the intake system an electronically controlled carburetor with a throttle valve and in the exhaust system a three-way catalytic converter, the carburetor being operated in response to the composition of exhaust gases entering the three-way catalytic converter. A dashpot mechanism is connected to the throttle valve of the carburetor to damp the returning movement of the throttle valve. Furthermore, a throttle valve opening mechanism is provided to the carburetor to open slightly the throttle valve when a certain vacuum is created in the intake system downstream of the throttle valve.
    Type: Grant
    Filed: February 5, 1976
    Date of Patent: May 16, 1978
    Assignee: Nissan Motor Company, Limited
    Inventor: Koyo Nakamura
  • Patent number: 4087961
    Abstract: A gas turbine engine is operated from a gaseous fuel supply whose pressure may occasionally drop from a normal and comparatively high value. The acceleration limit schedule for the engine is established as a function of compressor discharge pressure but this schedule is modified as a function of fuel supply pressure so that, when lower than normal supply pressures exist, the engine may develop substantially the maximum power which is possible at the lower supply pressures.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: May 9, 1978
    Assignee: Woodward Governor Company
    Inventor: Paul A. Avery
  • Patent number: 4086880
    Abstract: A readily reversible, rotary type internal combustion engine which is selectively operable as a compressor and capable of several basic modes of operation, wherein an expansible combustion chamber or volume cyclically initiated from zero volume is chargeable, directly from a contractible compression volume, with compressed gaseous fluids in real-time as the combustion chamber is cyclically formed and expands from a selectively small volume, said volumes being formed within a housing between intermeshing rotors. The flow of compressed and expanding gases within the apparatus is controlled primarily by said rotors.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: May 2, 1978
    Inventor: Kenneth Clayton Bates
  • Patent number: 4086824
    Abstract: A dual braking arrangement is provided for a vehicle whereby setting the hand brake will not affect the positioning of the foot-brake pedal and conversely the actuation of the foot-brake pedal will not affect the positioning of the hand-brake lever. A split linkage is provided whereby the brake actuator is splined to a dual operative lever, such that actuation of the dual operative lever by either the linkage connected to the hand-brake lever or the linkage connected to the foot-brake pedal, will actuate the brake.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: May 2, 1978
    Assignee: Caterpillar Tractor Co.
    Inventor: David G. Johnson
  • Patent number: 4085579
    Abstract: A method for operating a gas turbine installation and an apparatus for carrying out the method, particularly for a vehicle gas turbine installation, in which the air is compressed and heated up by utilizing the exhaust gas heat of the gas turbine installation, fuel is combusted under supply of compressed air with an excess of air, the resulting gas is thinned out and cooled off by admixture of compressed heated air, and the produced gas is then permitted to expand for producing an output; a more or less large quantity of non-preheated air is thereby admixed to the preheated primary air prior to the entry into the combustion zone at least within the lower partial load range, preferably as a function of load, in order to control the temperature in the combustion space.
    Type: Grant
    Filed: April 3, 1975
    Date of Patent: April 25, 1978
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Immanuel Holzapfel, Werner Bruder
  • Patent number: 4084555
    Abstract: A radial engine having an engine casing supporting for rotation therein a central drive shaft and having mounted thereupon a rotator drivingly afixed to said shaft, at least two combustion apertures provided along the circumferential edge of the rotator and in alignment with complimentary apertures provided within the engine block for mating with said rotor apertures. At least two axially reciprocal pistons for compressing the fuel within said engine combustion chambers, at least one intake valve with each combustion chamber, and a slotted piston cam drivingly engaged on said central shaft and associated by cam follower mechanism with said reciprocal pistons. Appropriate exhaust ports are provided within the engine block and spaced at least a rotor combustion chamber width away from the combustion chambers and in alignment with the combustion chambers in said rotator. Intake valve cam structure also appropriately arranged for drive from the central shaft.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: April 18, 1978
    Inventor: Homer G. Outlaw
  • Patent number: 4084549
    Abstract: Exhaust gas recycling means by which exhaust gas is recycled and introduced, via a port which is formed in the peripheral wall of a rotary piston engine and which port may also serve for introduction of air or an air-fuel mixture required for low-speed operation of the engine, into a leading zone of an intake chamber. Since the port formed in the peripheral wall is so disposed that the air or air-fuel mixture introduced therethrough tend to be stratified at the leading zone of the intake chamber, the recycled exhaust gas also tends to be stratified at the same leading zone so that the recycled exhaust gas tends to exist in vicinity of the spark plug, whereby less exhaust gas is required to be recycled since a given amount of exhaust gas is more effective in preventing production of nitrogen oxides, and there is correspondingly less engine wear and attendant production of hydrocarbons or similar compounds.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: April 18, 1978
    Assignee: Toyo Kogyo Co., Ltd.
    Inventor: Haruhiko Satow
  • Patent number: 4080784
    Abstract: A gas turbine engine power plant having a coal burning fluidized bed utilized as the heating source for the power plant. The fluidized bed comprises inerts and coal in which is immersed a temperature sensitive device, the signal from which is used to control the supply of coal to the bed to thereby maintain the bed at a predetermined temperature and to limit the bed temperature to a predetermined maximum value. The bed can be fluidized by the flow of compressed air from the compressor of the gas turbine engine power plant and the whole of the compressor delivery air flows through the bed in direct chemical contact with the bed materials and is then cleaned prior to delivery to the turbines of the power plant from which it is discharged to atmosphere.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: March 28, 1978
    Assignee: Rolls-Royce Limited
    Inventor: Albert Jubb
  • Patent number: 4078529
    Abstract: A radial engine with a rotating cylinder block is disclosed which is capable of high rates of rotation although operating on the two stroke cycle. An intake air compressor and an exhaust driven turbine are provided, both in driving connection with the same output shaft as the cylinder block. A peripheral manifold serves both to provide the stator of the exhaust turbine and to mask exhaust passages from the cylinders in the block so as to modify the two stroke cycle of the engine by effectively advancing the end of the scavenge phase. A system for recovering oil from the block is disclosed, and the block is reinforced by a peripheral tension band.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: March 14, 1978
    Inventor: Douglas Warwick
  • Patent number: 4078526
    Abstract: A rotary piston engine whose two pistons each have one or more sectors of greater radial dimensions sealingly engaging inner walls of two cylindrical, intersecting cavities respectively receiving the pistons, and one or more sectors of smaller radial dimensions which engage the larger sectors in all angular positions of the piston and radially bound working chambers with the inner casing wall. The pistons are coupled for simultaneous rotation of equal angular velocity, and the working chambers expand and contract cyclically because they are circumferentially bounded by the larger piston sectors and by a sealing arrangement connecting the engaged piston portions. A compressor drivingly connected to one of the rotary pistons supplies compressed fluid to the working chamber when it is at its minimum volume, and explosion of the fluid expands the chamber and turns the piston.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: March 14, 1978
    Inventor: Josef Gail
  • Patent number: 4077365
    Abstract: Expansible chamber apparatus for use either as an internal combustion engine or as a pump comprising a stationary housing, a cylinder block rotatable within the housing about a central axis, a shaft secured to and rotatable with a cylinder block with the longitudinal center line of the shaft constituting the above-mentioned axis. A stationary gear is carried by the housing and surrounds the shaft. The cylinder block has a plurality of cylinders therein with the longitudinal axes of these cylinders being tangent to a circle surrounding the axis. A piston for each cylinder is reciprocable within its respective cylinder and a connecting rod and an eccentric gear are provided so as to connect each piston to the stationary gear for effecting rotation of the cylinder block and the shaft relative to the housing and for effecting reciprocation of the pistons. Inlets and outlets are provided in the housing for the inlet and outlet of fluid to the cylinders as the cylinder block rotates and as the pistons reciprocate.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: March 7, 1978
    Inventor: James B. Schlueter
  • Patent number: 4077277
    Abstract: A force transmitting cable assembly is provided with a plastic sheathing overlapping the cable and its endpiece to prevent cable wear and fracturing at the point of cable connection to the endpiece.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: March 7, 1978
    Assignee: Volkswagenwerk Aktiengesellschaft
    Inventor: Bodo Henning
  • Patent number: 4077204
    Abstract: In an acceleration control of a gas turbine engine having a feedback system in which the fuel flow is controlled by comparison of a selected engine speed and an actual engine speed, when the difference between the speeds exceeds a predetermined level the control is performed from the selected speed signal to a temperature limit signal and the fuel flow is controlled so that the actual engine temperature does not exceed the limit.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: March 7, 1978
    Assignee: Nissan Motor Company, Limited
    Inventor: Takane Itoh
  • Patent number: 4077371
    Abstract: A fuel control system for automobile engines comprises load-sensor means for sensing the load on the engine, and fuel-mixture-ratio control means responsive to the load-sensor means to control the fuel-mixture ratio such as to produce a richer fuel mixture with increased loads, and a leaner fuel mixture with decreased loads.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: March 7, 1978
    Inventor: Mordeki Drori