Patents Assigned to Combustion Engineering
-
Patent number: 4206159Abstract: A venturi-type rod scrubber for effecting the cleaning of the flue gas produced as a by-product of the combustion process that occurs during the course of the operation of fossil fuel firing steam generators, before the flue gas flows up the exhaust stack and is released to the atmosphere. The subject scrubber includes inlet means through which the flue gas enters the scrubber. A first spray system is suitably mounted in juxtaposed relation to the inlet means so as to be operative to introduce liquid into the stream of flue gas entering the scrubber through the inlet means. In alignment with but in spaced relation to the inlet means, the scrubber is provided with a throat region, i.e., a region of restricted cross-section. A plurality of spaced rows of parallel rods are suitably mounted within the throat region so as to extend substantially perpendicular to the path of flow of the flue gas flowing therethrough.Type: GrantFiled: January 5, 1979Date of Patent: June 3, 1980Assignee: Combustion Engineering, Inc.Inventors: Edward J. Angelini, Khaldoun W. Malki
-
Patent number: 4204909Abstract: A self-actuated mechanism within a safety assembly in a liquid metal nuclear reactor comprising sensor fuel pins located in a reactor coolant flow path, a sensor bulb containing NaK located near the upper end of the sensor fuel pins and in the reactor coolant flow path, and a sensor tube connecting the sensor bulb to a metal bellows and push rod. The motion of the push rod resulting from the temperature dependent change in the NaK volume actuates a safety rod release mechanism when a predetermined coolant temperature is reached.Type: GrantFiled: June 10, 1977Date of Patent: May 27, 1980Assignee: Combustion Engineering, Inc.Inventors: Nicholas Giuggio, Richard C. Noyes, Shakir U. Zaman
-
Patent number: 4204934Abstract: Flow paths for liquids are disclosed in vessels, the paths oriented with electrodes which are electrically energized to establish electrostatic fields through the paths, one of the liquids is more polar than the other liquids in the paths, one of the fields is intense enough to generate the force to move drops of the polar liquid fast enough to shear the drops to smaller sizes and disperse the smaller drops. A second one of the fields is less intense than the first field yet intense enough to generate the force to move the dispersed drops into coalescense. Various spacing and means of energizing the electrodes are disclosed to place the forces on the liquids in sequence and at different intensities.Type: GrantFiled: February 21, 1979Date of Patent: May 27, 1980Assignee: Combustion Engineering, Inc.Inventors: Kenneth W. Warren, Floyd L. Prestridge
-
Patent number: 4202403Abstract: A system for automatically assembling flaskless copes and drags, preparing them for metal pouring on an indexing conveyor belt. A cope is centered on the conveyor, lifted, and rotated 180.degree.. Thereafter, a drag is centered beneath the cope, and the cope is lowered onto the drag, to form a complete mold, ready for metal pouring. All of the above is accomplished automatically, with little or no supervision required.Type: GrantFiled: April 21, 1978Date of Patent: May 13, 1980Assignee: Combustion Engineering, Inc.Inventor: Charles R. Miller
-
Patent number: 4201755Abstract: Two zones are connected to each other and to a source of gas containing sulfur oxide as a pollutant to be removed. The gas is passed through the two zones in series and scrubbed with aqueous solutions. The pH level is controlled in each zone to minimize the amount of chemical added to the solutions and maximize the efficiency of the sulfur oxide removal.Type: GrantFiled: October 10, 1978Date of Patent: May 6, 1980Assignee: Combustion Engineering, Inc.Inventor: Abb A. Nofal
-
Patent number: 4200516Abstract: An electrode is fluid-coupled to the driven electrode, which is directly connected to either an AC or a DC source of potential. The driven electrode is provided with the usual ground electrode to establish the electrostatic field of a coalescing system. The electrode fluid-coupled to the driven electrode is positioned to establish two zones in the electrostatic field. A fluid mixture is passed through the two zones of the electrostatic field, in sequence. The intensity of the field in the first zone decreases as the dispersed polar fluid of the mixture increases, in relation to the less polar fluids of the mixture. At the same time, the field in the second zone increases in intensity. The field gradient shifts between the two zones, in accordance with the quantity of the polar fluid in the mixture passed through the zones in the field, in sequence.Type: GrantFiled: July 28, 1978Date of Patent: April 29, 1980Assignee: Combustion Engineering, Inc.Inventor: Kenneth E. Pope
-
Patent number: 4200203Abstract: A storage circuit receives signals representative of voltage pulse trains. A generator of voltage pulse trains feeds a predetermined number of voltage pulses into the first circuit for storage. The first circuit generates a signal to stop the generation of the first pulse train. A second train of pulses is generated by the flow of fluid to make up a batch of the fluid. The first circuit is arranged to generate a signal to a control valve for the fluid supply when the circuit has received a number of pulses in a train which equals the total required for a batch minus the predetermined number of voltage pulses manually established in storage. The circuit then establishes a second signal to the control valve when the second train of pulses equals the total number of pulses for each batch.Type: GrantFiled: May 30, 1978Date of Patent: April 29, 1980Assignee: Combustion Engineering, Inc.Inventor: Jerald R. Rider
-
Patent number: 4199404Abstract: A fuel-pellet composition for use in fast breeder reactors. Uranium carbide particles are mixed with a powder of uranium-plutonium carbides having a stable microstructure. The resulting mixture is formed into fuel pellets. The pellets thus produced exhibit a relatively low propensity to swell while maintaining a high density.Type: GrantFiled: August 5, 1977Date of Patent: April 22, 1980Assignee: Combustion Engineering, Inc.Inventors: Walter J. Mordarski, Sylvester T. Zegler
-
Patent number: 4199403Abstract: An improved core shroud for a nuclear reactor employs cylindrical bands that surround a coolant boundary and reinforce it by means of support members that engage the coolant boundary and the bands.Type: GrantFiled: November 21, 1977Date of Patent: April 22, 1980Assignee: Combustion Engineering, Inc.Inventors: Arun Puri, John F. Mullooly
-
Patent number: 4194323Abstract: The grinding wheel of a centerless grinder comprises a cylindrical abrasive grinding surface sandwiched between two slightly frustoconical guide surfaces made of a resilient material. The regulating wheel has a surface that mates with the composite surface of the grinding wheel. This arrangement permits blanks of a brittle material fed axially of the wheel to be ground to a barrel shape without chipping.Type: GrantFiled: November 30, 1978Date of Patent: March 25, 1980Assignee: Combustion Engineering, Inc.Inventor: Edwin W. Blocker, Jr.
-
Patent number: 4195062Abstract: A limestone flue gas scrubbing system includes a confining means which collects the effluent from the spray tower. A portion of this effluent is removed to a secondary reaction tank which operates at low pH for increased utilization of the additive. A first portion of the flow from the tank is passed to waste with the liquid portion returning to the main additive tank. A remaining portion of the slurry from the secondary tank is recirculated to the spray tower in parallel with the main slurry flow from the main reaction tank.Type: GrantFiled: March 21, 1978Date of Patent: March 25, 1980Assignee: Combustion Engineering, Inc.Inventors: James R. Martin, Khaldoun W. Malki
-
Patent number: 4193158Abstract: A reciprocable soot blower that is adapted to extend laterally through an outer wall to remove deposits of slag that collect on the walls of a pressurized furnace, gasifier or other reactor. The soot blower is telescopically mounted in a conduit attached to an outside wall of the furnace to permit its complete withdrawal from the furnace when not in use. A steam seal is adapted to be activated in the conduit when the soot blower is extended to increase pressure in the conduit to thus prevent entry of foreign material from said furnace into the space between the conduit and the soot blower.Type: GrantFiled: January 5, 1979Date of Patent: March 18, 1980Assignee: Combustion Engineering, Inc.Inventor: Henry J. Blaskowski
-
Patent number: 4193735Abstract: A stepped platform is arranged to traverse the down-facing tubesheet of a nuclear steam generator with a rotating, circular work table attached to the platform to position a plurality of tools, in sequence, at a common area of the tubesheet for required work.Type: GrantFiled: April 24, 1978Date of Patent: March 18, 1980Assignee: Combustion Engineering, Inc.Inventors: Dennis E. Savor, James W. Hales
-
Patent number: 4192716Abstract: An alignment system is provided for nuclear fuel assemblies in a nuclear core. The core support structure of the nuclear reactor includes upwardly pointing alignment pins arranged in a square grid and engage peripheral depressions formed in the lateral periphery of the lower ends of each of the fuel assemblies of the core. In a preferred embodiment, the depressions are located at the corners of the fuel assemblies so that each depression includes one-quarter of a cylindrical void. Accordingly, each fuel assembly is positioned and aligned by one-quarter of four separate alignment pins which engage the fuel assemblies at their lower exterior corners.Type: GrantFiled: January 16, 1978Date of Patent: March 11, 1980Assignee: Combustion Engineering Inc.Inventor: Andrew J. Anthony
-
Patent number: 4191246Abstract: Apparatus for reducing the heat flux in a localized area of a heat exchange tube, by placing a sleeve inside of the tube, creating a gap, or dead space, which fills with stagnant water, between the sleeve and inner tube wall. This reduced heat transfer will considerably reduce or prevent steaming on the outer side of the tube, thereby minimizing or preventing any solids from separating out at this location.Type: GrantFiled: March 5, 1979Date of Patent: March 4, 1980Assignee: Combustion Engineering, Inc.Inventor: Don S. Cassell
-
Patent number: 4190857Abstract: A remotely controlled periscope assembly that is used in conjunction with closed circuit television apparatus to view the inside of tubes in a nuclear steam generator or other apparatus. The periscope assembly is moved universally to any given location and then it is readily collapsed after visual identity has been accomplished to permit the insertion of an aligned tool deemed necessary for maintenance or repair.Type: GrantFiled: June 8, 1978Date of Patent: February 26, 1980Assignee: Combustion Engineering, Inc.Inventors: Ronald B. Creek, John P. Cook
-
Patent number: 4187876Abstract: The gate for each conduit, of a preferably multiple conduit installation is transversally slidably mounted between full skirts. Dual hydraulic actuators drive a transversally extending rolling cam follow pin along an oblique path to slide the gate open and closed. The actuators have spring-assisted closure for fail safe operation, the actuator pistons being isolated from well pressure. Where there are two conduits so valved, the actuators for one extend longitudinally upwards from a central bulkhead, and the actuators for the other extend longitudinally downwards. Stem packing for the actuator piston rods is located in the central bulkhead. Modifications for accommodating, e.g. a third valved conduit are described. Also disclosed is a version with two, mutually inverted commonly housed gate valves controlling the same conduit.Type: GrantFiled: May 8, 1978Date of Patent: February 12, 1980Assignee: Combustion Engineering, Inc.Inventor: Heinrich Lang
-
Patent number: 4188186Abstract: A vessel is mounted above a furnace, and is used for retaining gypsum as it is calcined to prepare it for making wallboard or plaster. A feed of crushed gypsum supplies the vessel-kettle regulated by the temperature required to calcine gypsum. Calcined gypsum flows from the kettle while maintaining a predetermined level of gypsum in the kettle.Type: GrantFiled: June 22, 1978Date of Patent: February 12, 1980Assignee: Combustion Engineering, Inc.Inventor: Richard D. Ladwig
-
Patent number: 4187145Abstract: A poison bundle release mechanism within a safety assembly of a liquid metal nuclear reactor. A baffle consisting of a plate with recesses in fluid communication with low pressure coolant is formed in the upper portion of the safety assembly. A plug attached to the upper end of the poison bundle fits snugly against the recesses and is held up against the plate by the coolant pressure difference acting on the lower and upper sides of the plug. A conduit and valve arrangement is provided within the plug whereby the actuation of the valve permits high pressure coolant to enter the recessed region, reducing the pressure difference across the plug and producing rapid disengagement thereof from the plate.Type: GrantFiled: July 25, 1977Date of Patent: February 5, 1980Assignee: Combustion Engineering, Inc.Inventors: Richard C. Noyes, Shakir U. Zaman
-
Patent number: 4184837Abstract: A fluid fuel burning system is mounted in a firetube and generates heat of combustion which is transferred to industrial fluid flowing through a vessel in which the firetube is mounted. The air for combustion flows into the burner as primary air mixing with the fluid fuel and a secondary air which is regulated as it flows to the combustion being completed downstream of the burner. The regulation is carried out with a damper positioned in the entrance to the firetube.Type: GrantFiled: April 21, 1976Date of Patent: January 22, 1980Assignee: Combustion Engineering, Inc.Inventor: William P. Manning