Abstract: The compensation element is compensating for temperature-conditioned length changes of an object. An injection valve that is fully functional in the entire range of the operating temperatures of a motor requires a device that compensates thermally conditioned length changes of the mechanical components (piezo-electric actuator, valve lifter, housing, etc.). This device should be capable of absorbing great forces and allow a stiff bearing of the actuator. The compensation element (3) has an oil-filled chamber (21) is composed of an actuator-side upper part (18), of a lower part (19) supported on a stiff bearing (valve housing 17), and of a structure (annular seal element 20) sealing the chamber (21) and yielding in an axial direction.

Abstract: The present invention concerns a process for the production of cement clinker in rotary kilns with substitution of primary raw materials and fuels by use of residual materials containing minerals and combustible parts with moisture contents of up to about 65% without predrying. The process makes possible a material and/or thermal utilisation of residual materials in the case of saving of the clay and fuel sources and relief of dumping with simultaneous lowering of the emissions, above all NO.sub.x, in the cement rotary kiln.

Abstract: The present invention relates to a system for thermally profiling preforms prior to blow molding. The system includes a pallet for holding a plurality of preforms and a station, such as a heating oven, for thermally conditioning the preforms. In a first embodiment, the pallet comprises a self aligning pallet which is movable towards and away from the heating oven. In a second embodiment, the pallet holding the preforms is fixed in position and the heating oven is movable towards and away from the preforms. The pallet further includes rotatable mandrels for supporting the preforms and a programmable motor for rotating the preforms a desired amount and at a desired speed.

Abstract: A furnace of a pulverized coal firing boiler includes a coutant bottom and walls intersecting with the coutant bottom and extending generally vertically therefrom to enclose and define an interior combustion chamber. A first windbox disposed in a corner of the combustion chamber includes therein a vertical array of consecutively spaced coal compartments. A coal nozzle of the lowermost coal compartment of the vertical array is disposed at least ten feet from the intersection of the walls with the coutant bottom. A second coal nozzle is disposed within a second adjacent coal compartment at a first vertical spacing to the first coal nozzle; a third coal nozzle is disposed within a third adjacent coal compartment at a second vertical spacing to the second coal nozzle; and a fourth coal nozzle is disposed within a fourth adjacent coal compartment at a third vertical spacing to the second coal nozzle.

Abstract: A four-way selector valve comprises a valve case connected with a first pipe, a separate chamber communicating with a second pipe, a first valve seat ring in communicating path between a connecting portion of a third pipe and a space of said valve case, a second valve seat ring in a communicating path between a connecting portion of a fourth pipe and said space, a moveable valve element assembly for alternating co-operation with said first and second valve seat rings, and a valve drive means connected to said moveable valve element assembly to at least selectively interconnect said first pipe either with said third pipe or said fourth pipe and simultaneously the remaining one of said third or fourth pipes with said second pipe, wherein first and second valve disks are pressed essentially in the direction of the axis of the associated valve seat ring in closing direction by remanent forces onto said first and second valve seat rings, and first and second cylindrical and hollow valves are moveable substantially

Abstract: A water-cooled firing grate made up of grate bar blocks extending over the width of the grate and each having a plurality of grate bars mounted on a grate bar carrier and interconnected by connecting pieces communicating between meandering shaped channels in the grate bar and a pair of end pieces forming an inlet and an outlet at the outer boundaries of the block and connected to an inlet and an outlet for the cooling water. The pieces are so fixed to the bars that they maintain a clearance between the bars of 1 to 1.5 mm.

Abstract: In order to carry out the method for controlling the firing rate of the combustion installation, the fire grate is equipped with a plurality of undergrate zones. In order to determine the control signal, the undergrate zone at the beginning of the main combustion zone is equipped with the corresponding measurement devices, namely a temperature sensor and a pressure sensor and the associated air supply line is equipped with an airflow measuring device. A further pressure sensor is provided in the furnace space so that the static pressure difference between the undergrate zone and the furnace space can be determined. The measured values from this measurement equipment are supplied to a central computer ZR which outputs, if necessary taking account of a flow coefficient .alpha.

Abstract: A method of producing cement clinker using a high sulfur fuel includes introducing raw material into a Lelep-Lepol travelling grate; drying and heating the raw material in the Lelep-Lepol travelling grate while passing the raw material through the Lelep-Lepol travelling grate; transferring the heated and dried raw material from the Lelep-Lepol travelling grate to a rotary kiln; combusting a high sulfur fuel in the rotary kiln; passing the raw material through the rotary kiln in the presence of the combusting fuel so as to sinter the raw material to form a sintered material; measuring a sulfur content of the sintered material; and controlling an excess concentration of oxygen in the rotary kiln based on the measured sulfur content of the clinker end product.

Abstract: The invention provides an electrically activated valve assembly for control of a fluid. It has a diaphragm with a control chamber on one side and a flow barrier on the second side. Portions of a first flow passage and a second flow passage are on the second side of the diaphragm, with the flow barrier between them. When the control chamber has a relatively high pressure, the diaphragm is pressed against the flow barrier, isolating the first flow passage from the second flow passage. When the control chamber has a relatively low pressure, the diaphragm moves away from the flow barrier, so flow may occur between the first flow passage and the second flow passage. The position of the diaphragm is determined by pressure in the control chamber so the pressure in the control chamber controls the fluid flow connection between the first flow passage and the second flow passage.

Abstract: A unitary airflow diffuser for use with a forced-air space heater has a plurality of spurs radially extending from a hub. The spurs include one or more vanes for deflecting the airflow generated by fan blades within the space heater. A nozzle assembly is secured through an aperture in the hub of the diffuser for supplying fuel within a combustion chamber. Brackets can be provided for securing an igniter and a sensor to the airflow diffuser. Mounting tabs are provided on each vane to secure the airflow diffuser to a mounting plate disposed at the input of the combustion chamber. The nozzle ejects the fuel through a central aperture in the mounting plate into the combustion chamber. The mounting plate can have secondary apertures through which air can be diverted, and vanes can be provided on the mounting plates to direct air through the secondary apertures.

Abstract: An inlet tube or dip tube for use in a water heater includes a cylindrical tube having near its top end a plurality of outwardly-facing upper openings having a combined upper surface area. The tube also has near its bottom end a plurality of outwardly-facing lower openings having a combined lower surface area, and a downwardly-facing bottom opening defining a bottom surface area. The lower surface area is about fourteen times larger than the upper surface area, and about four times larger than the bottom surface area to provide an even distribution of water in the water heater tank.

Abstract: Furnace for the treatment of ore on a rotary hearth, including a toroidal chamber, a rotary hearth and drives for the rotary hearth, the hearth being arranged on a supporting frame fitted with guides means and motion-supports; the drives are at least partly connected to the said guides and/or to the motion-supports means.

Abstract: An exhaust gas extraction apparatus for a vehicle shed includes a running rail arranged in the exit direction of a vehicle in an upper shed region, with a carriage which can travel thereon and an extraction hose hanging down therefrom, with an extraction socket disposed at its lower, free end and capable of being clamped onto the exhaust of the vehicle. A connecting hose which can extend elastically in its longitudinal direction, is connected at one end to the carriage and at the other end to a collecting line and is carried from the running rail by a plurality of supports with rollers which can move in the running rail. A brake device is arranged on the carriage, with a movable brake shoe which can be pressed onto the running rail in its braking position by a pneumatic, electrical, electromagnetic or mechanical actuating device. A control device is also provided which acts through a control pulse on the actuating device on release of the extraction socket from the exhaust.

Abstract: A method for incineration and an incinerator for composition of exhaust gases containing organic substances, the incinerator comprising an elongated, preferably cylindrical combustion chamber, an oil or gas fired burner with a flame-tube axially centrally at one end of the combustion chamber, a flue gas outlet pipe provided at the end of the combustion chamber opposite to the burner for the flue gases produced during incineration, and an inlet conduit connected to the side of the combustion chamber for the exhaust gases to be decomposed, wherein the inlet feed pipe opens or discharges in the combustion chamber in proximity to the burner. The incinerator is characterized by a conduction/deflection plate (36), adjacent the input conduit (24), for pre-heating the exhaust gases flowing by.

Abstract: A vent disc for a container is provided. The vent disc has a concavely curved domed central panel with a plurality of perforations extending therethrough along radii that form the concave curvature of the domed central panel. The domed central panel can have a plurality of upwardly extending depressions therein that leave residual central panel above the depressions. The depressions have center lines that are coincident with radii that form the concave curvature of the domed central panel. The perforations extend through the residual of central panel material. Methods and apparatus are also provided for forming the vent disc with the perforations and depressions therein.

Abstract: This invention relates to a slow pull dryer comprising a rectangular water tank and a wave eliminator. The water tank has four vertical side-walls and a bottom plate with a water hole for filling hot water wherein the hot water filled in the water tank can spill out of the water tank from the top side of one predetermined side-wall. The wave eliminator is installed at the bottom of the water tank. The lower side of the wave eliminator has a rectangular recess facing downward, and the upper side of the wave eliminator has a line-shaped opening in parallel with the predetermined side-wall. The hot water from the water hole flows into the recess and its flowing speed is slowed down in the recess. The line-shaped opening allows the hot water in the recess flow upward into the upper portion of the water tank and form a panel-shaped vertical water flow.

Abstract: A feed stock composed of an iron ore and a solid reducing material is supplied in a movable hearth furnace provided with a unidirectionally movable hearth, stacked on the movable hearth and then subjected to a series of operations of preheating, reduction and discharge. To this end, a feed stock subsequently supplied in such furnace is preheated by utilizing a heat applied by the finished reduced ore and is stacked on the movable hearth.

Abstract: A direct-fired steam generator utilizes dual regulators for delivering combustible gas to a burner chamber. A first regulator is a constant pressure gas regulator. A second regulator is a variable pressure gas regulator. The variable pressure gas regulator utilizes a pressure feedback which is representative of the pressure in the burner chamber. One or more air blowers can be utilized to supply air (oxygen) to the burner chamber.

Abstract: A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and fumes to enter the enclosure without igniting flammable gases or vapors outside of the enclosure.

Abstract: A Pyrocleaning Furnace and Thermal Oxidizer System which degreases metal components and comprises an oven, an oxidizer, a system gas supply means, a system gas exhaust means, and a first heat exchanger. The degreasing is accomplished by first transporting the metal components through the oven and exposing the oil coated metal components to hot gases which have a temperature above the vaporization point of the oil, but not one that is exceedingly high thereby also preventing the thickening of the oxide layer of the metal components. The hot gases are introduced into oven by way of the system gas supply means and do not include products of combustion (indirect heating). Since the gases are at a temperature above the vaporization point of the oil, upon contact with the metal components, the gases cause the oil to evaporate from the metal components. The resultant hydrocarbon-filled surrounding gases are then quickly evacuated from the oven and transported to the oxidizer.