Abstract:
The method for fabricating the board includes as a first step the fabrication of a first board panel (10) having a raised electrically conducting first circuit pattern (15) extending from a base layer (14) of conductive material and a raised electrically conducting second circuit pattern (20) extending from the first circuit pattern (15). A second board panel (30) is also fabricated, having a raised electrically conducting third circuit pattern (35) extending from another base layer (34) of conductive material. The first board panel (10) is laminated to the second board panel (30) with a laminate insulating material (40) disposed therebetween electrically insulating the first circuit pattern (15) from the third circuit pattern (35) and with the second circuit pattern (20) electrically contacting the first circuit pattern (15) at selected portions thereof. Finally, the base layers (14, 34) of conductive material are removed from the laminate insulating material (40).
Abstract:
A plasma feed nozzle (3) for a furnace (1) which has a tubular mixing chamber (7) open at one end to the furnace (1), a plasma torch (13) which provides superheated gases axially to the central portion of the mixing chamber (7), a shroud gas conduit which enters the end of the mixing chamber opposite the end open to the furnace (1) in such a way as to swirl the gases as they move axially through the mixing chamber (7) to provide a temperature profile which is substantially hotter in the central portion of the mixing chamber (7) than adjacent the wall portion (9) thereof and a particulate feed nozzle (25) disposed to direct particulate material to the central portion of the mixing chamber (7).
Abstract:
A transport refrigeration system (10) suitable for mounting on the front wall (14) of a narrow post highway trailer (15) in which the refrigeration system (10) intrudes into the trailer cargo space (17) only to the extent necessary to direct trailer air (89) into an evaporator coil (72). The evaporator coil (72) is completely serviceable external to the trailer (15), with its inlet surface (76) being substantially co-planar with the inside surface (80) of the front wall (14) of the trailer (15). An air delivery assembly (98) is manufactured as an integral unit and mounted in a main support frame (12) of the transport refrigeration system (10) without requiring further adjustment. Mounting of the air delivery assembly (98) on an intermediate wall (50) of support frame (12) completes a plenum chamber (119) for the evaporator coil (72), placing an axially narrow blower (106) into an air flow path in which the blower (106) draws trailer air (89) through the evaporator coil (72) and forces conditioned air (91) back into the trailer (15). Mounting of the air delivery assembly (98) also creates a condenser plenum (123) and places a fan (110) into an air flow path in which outside air (93) is directed upwardly through a condenser coil (90), and laterally through an engine radiator (94).
Abstract:
A combustion controller (62) controls the supply of combustion air to the combustion barrel (10) of a rotary combustor (8) used for incinerating solid waste material (14). The rotary combustor (8) includes a combustion barrel (10) having a gas-porous side wall (36) and windboxes (48, 50, 52) underneath the combustion barrel (10) to supply the combustion air to support incineration of the waste material (14) into combustion products which include exhaust gases (20). The windboxes (48, 50, 52) receive combustion air via individual control ducts (40, 42, 44, 46, 47, 49) which are controlled by the combustion controller (62) to regulate the corresponding supplies of combustion air and thereby to provide substantially complete incineration of the solid material (14). An oxygen sensor (64) detects the percentage of oxygen present in the exhaust gases (20) and the combustion air supplied to the combustion barrel (10) is controlled to maintain the percentage of oxygen near a predetermined level. In addition, flame and temperature sensors (71 through 79) may detect temperature and the existence of a flame (26) respectively, in an area above each of the windboxes (48, 50, 52) so that the combustion air supplied to each windbox (48, 50, 52) can be individually controlled.
Abstract:
An arrangement for feeding combustible material (9) to the open end of a rotary combustor (10) including a vertical chute (33) leading to a doorway (42) to the rotary combustor (10) which is normally closed by a biaised door (43), and a stepped ram (44) reciprocating at the bottom of the chute (33) for feeding combustible material (9) through the doorway (42) and into the rotary combustor (10) when the ram (44) moves in the direction of the door (43).
Abstract:
A combustor (10) formed of a plurality of water cooled pipes (14)secured as a drum (16) by members (15) defining a plurality of holes (17) between the pipes (14), the drum (16) being mounted for rotation at an angle, with there being low U-shaped walls (40) surrounding the sides and high ends of the holes (17) so that aluminum melted by burning material in the drum (16) is guided around the holes (17) while that material flows to the lower end of the drum (16).
Abstract:
A low cost, multipurpose digital IC is used as the basic building block in establishing a network communication system over a desired communication link. The digital IC can function as an addressable microcomputer interface between the network line and a remotely located microcomputer which may, for example, comprise any microprocessor based controlled product. In such mode, the digital IC's function is to take data from the network and pass it on to the remotely located microcomputers upon command from the central controller and to transmit data from the microcomputer to the central controller. The digital IC may also function as a nonaddressable microcomputer interface between the central or master controller and the network line. In such case the digital IC's function is to continuously take data from the central controller and place it on the network and take data from the network and pass it back to the central controller. The digital IC may also function as an addressable load controller associated with an individual remote controlled device and responding to shed or restore load commands from the central controller over the network line. When so used the digital IC may also be commanded to transmit a reply message back to the central controller giving information as to the status of the controlled device, thus enabling the central controller to monitor a large number of remotely located controllable devices.
Abstract:
A gas turbine that has turbine vanes that can be cooled with either steam or air includes a compressor that compresses air, a combustor enclosed within a shell and in flow communication with the compressor, a turbine in flow communication with the combustor and receiving hot gas from the combustor and turbine vanes. The turbine vanes having an airfoil, a shroud and a cooling circuit that cools the airfoil and the shrouds with either steam or air.
Abstract:
A system and method generates electricity and co-produces a hydrogen flow from coal. The electricity is generated by a turbine with a topping combustor and a solid oxide fuel cell ("SOFC") reacting syngas. The syngas is produced in a coal gasifier with a portion of the compressed air from the turbine, coal, and steam. Prior to the syngas being delivered to the topping combustor and the SOFC, it is cleaned and a portion of the hydrogen in the syngas is removed to form the hydrogen flow. Additionally, a vitiated air flow from the SOFC is directed to the topping combustor and another portion of the compressed air from the turbine directed to the SOFC after it is heated with the turbine exhaust. An aspect of the invention varies the amount of electricity generated and the volume of hydrogen co-produced based upon the demand of electricity and/or the demand of said hydrogen.
Abstract:
A distributed process control system drop for controlling the operation of an industrial process includes a first workstation or personal computer running industrial continuous process control software on an open architecture operating system and operable to analyze input information provided from the industrial process according to a predetermined set of rules and generate output information provided to the industrial process to control the operation thereof. A second workstation or personal computer connected with the first workstation via a non vendor-specific, international standards-based data highway normally runs in a backup mode and also runs the industrial process control software on an open architecture operating system to perform the same analysis as the first workstation and generate backup output information. A monitoring function associated with the second workstation detects a failure in the first workstation and transfers control of the industrial process to the second workstation upon first workstation failure. Both the first and second workstations include non-proprietary software suites and each suite includes individual software packages operable to permit personnel associated with the industrial process to interface with the industrial process in a selected manner through the first and second workstations.