Abstract: Provided is a construction machine including an air cleaner having a cylindrical outer peripheral surface and an air intake pipe, wherein the assembly of the air cleaner and the air intake pipe can have a reduced width size in the front-rear direction. The air intake pipe has a returning portion and a downstream-side portion. The downstream-side portion has a cross section having a shape including a hypotenuse portion inclined toward the air cleaner, arranged in the state where at least a part of the hypotenuse portion is located in a space defined between the cylindrical outer peripheral surface of the air cleaner and an air-cleaner placement surface.

Abstract: Provide is a construction machine allowing an air cleaner to be located entirely low while securing dust-discharge function thereof, with no risk of adverse effects such as diffusion of dusts and complication in structure. The construction machine includes an engine and an air cleaner connected to an intake-side portion of the engine to filter intake air. The air cleaner includes an air-cleaner main body which filters the intake air and an evacuator which discharges dusts separated from the intake air and protrudes downward beyond the air-cleaner main body. The air-cleaner main body is placed on an air-cleaner placement surface, the evacuator protruding downward beyond the air-cleaner placement surface at a position deviated outward from the air-cleaner placement surface.

Abstract: Provided is a construction machine including an air cleaner and allowing the air cleaner to be easily installed with no enlargement of an installed space while surely avoiding the interference with other structure. The construction machine includes: an air cleaner; a pipe connected to an exhaust port of the air cleaner; a seat plate on which the air cleaner and the pipe are mounted to form a subassembly; and a device including an upper surface on which the subassembly is mounted to form a device-assembly. The subassembly is allowed to be displaced between a first position apart from a first structure and a second position close to the first structure and apart from a second structure and to be fixed at each of the positions.

Abstract: Provided is a construction machine including: an upper slewing body including an upper frame; an engine room on the rear portion of the upper frame; a cabin on the front portion on the right or left side of the upper frame; a plurality of tanks including a fuel tank and a hydraulic tank installed on the upper frame; an air cleaner; a center foothold on the intermediate portion in the width direction of the upper frame and forward of the engine room; and a climbing step at the opposite side to the cabin. A first tank of the plurality of tanks is placed on a portion on the right or left side of the upper frame, and a second tank is arranged on a portion between the cabin and the engine room on the opposite side to the first tank. The air cleaner is superposed on the second tank.

Abstract: Provided is a construction machine including: an upper slewing body including an upper frame; an engine room on the rear portion of the upper frame; a cabin on the front portion on the right or left side of the upper frame; a plurality of tanks including a fuel tank and a hydraulic tank installed on the upper frame; an air cleaner; a center foothold on the intermediate portion in the width direction of the upper frame and forward of the engine room; and a climbing step at the opposite side to the cabin. A first tank of the plurality of tanks is placed on a portion on the right or left side of the upper frame, and a second tank is arranged on a portion between the cabin and the engine room on the opposite side to the first tank. The air cleaner is superposed on the second tank.

Abstract: Provide is a construction machine allowing an air cleaner to be located entirely low while securing dust-discharge function thereof, with no risk of adverse effects such as diffusion of dusts and complication in structure. The construction machine includes an engine and an air cleaner connected to an intake-side portion of the engine to filter intake air. The air cleaner includes an air-cleaner main body which filters the intake air and an evacuator which discharges dusts separated from the intake air and protrudes downward beyond the air-cleaner main body. The air-cleaner main body is placed on an air-cleaner placement surface, the evacuator protruding downward beyond the air-cleaner placement surface at a position deviated outward from the air-cleaner placement surface.

Abstract: Provided is a construction machine including an air cleaner and allowing the air cleaner to be easily installed with no enlargement of an installed space while surely avoiding the interference with other structure. The construction machine includes: an air cleaner; a pipe connected to an exhaust port of the air cleaner; a seat plate on which the air cleaner and the pipe are mounted to form a subassembly; and a device including an upper surface on which the subassembly is mounted to form a device-assembly. The subassembly is allowed to be displaced between a first position apart from a first structure and a second position close to the first structure and apart from a second structure and to be fixed at each of the positions.

Abstract: Provided is a construction machine including an air cleaner having a cylindrical outer peripheral surface and an air intake pipe, wherein the assembly of the air cleaner and the air intake pipe can have a reduced width size in the front-rear direction. The air intake pipe has a returning portion and a downstream-side portion. The downstream-side portion has a cross section having a shape including a hypotenuse portion inclined toward the air cleaner, arranged in the state where at least a part of the hypotenuse portion is located in a space defined between the cylindrical outer peripheral surface of the air cleaner and an air-cleaner placement surface.

Abstract: A device detecting a property of fuel in a course of a pipeline, while improving accuracy and stability of the fuel property detection. The device includes a sub-tank provided in the course of a fuel pipeline connecting a fuel tank and an engine, and a sensor capable of detecting the property of fuel inside the sub-tank. The sub-tank includes a fuel inlet for introducing therethrough fuel from the fuel tank, and a fuel outlet for sending out therethrough the fuel toward the engine.

Abstract: A device detecting a property of fuel in a course of a pipeline, while improving accuracy and stability of the fuel property detection. The device includes a sub-tank provided in the course of a fuel pipeline connecting a fuel tank and an engine, and a sensor capable of detecting the property of fuel inside the sub-tank. The sub-tank includes a fuel inlet for introducing therethrough fuel from the fuel tank, and a fuel outlet for sending out therethrough the fuel toward the engine.

Abstract: A sputtering method is for forming, in a vacuum chamber, an initial layer on a film formation target object and then further forming a second layer on the initial layer therein, and the method includes: in the vacuum chamber, arranging surfaces of a pair of targets to face each other while distanced apart from each other at a preset distance and to be inclined toward the film formation target object placed at a lateral position between the targets, and then sputtering the targets by generating a magnetic field space on the facing surfaces of the pair of targets, and thus forming the initial layer on the film formation target object by using particles sputtered by the sputtering; and further forming the second layer on the film formation target object at a higher film forming rate than a film forming rate of the initial layer.

Abstract: A filter medium comprising first and second filter mediums joined together. The first filter medium provides relatively large voids and has high porosity, while the second filter medium provides relatively small voids and has low porosity. Raw water is mainly introduced into the first filter medium, and water branching therefrom flows through the second filter medium, at which biological filtering is conducted by aerobic microorganisms breeding therein.

Abstract: A thermal decomposition furnace in which waste tires having original shape, not broken up, can be laid horizontally and be thermally decomposed. The furnace is constructed by providing a feeder above, forming downward a fluidized bed-forming section having inlets for air, forming beneath a sealing bed-forming section of right cylindrical shape having a diameter smaller than that of fluidized bed-forming section, and installing a conveyor below said sealing bed-forming section. At the lower end of sealing bed-forming section, an oblique opening is formed so as to keep an progressively increasing clearance to the conveyor in the direction of advance of conveyor.

Abstract: A thermal decomposition furnace in which waste tires having original shape, not broken up, can be laid horizontally and be thermally decomposed. The furnace is constructed by providing a feeder above, forming downward a fluidized bed-forming section having inlets for air, forming beneath a sealing bed-forming section of right cylindrical shape having a diameter smaller than that of fluidized bed-forming section, and installing a conveyor below said sealing bed-forming section. At the lower end of sealing bed-forming section, an oblique opening is formed so as to keep a progressively increasing clearance to the conveyor in the direction of advance of conveyor.

Abstract: A water filtering device has a substantially horizontal rotatable drum having a filter layer composed of a granular filter material and a space therein, the rotatable drum being rotatable about its own axis, a first water flow pipe extending axially into the rotatable drum in coaxial relationship, the first water flow pipe having a first branch extending radially outwardly in the space for introducing crude water to be filtered into the rotatable drum and discharging waste washing water out of the rotatable drum, and a second water flow pipe extending axially into the rotatable drum in coaxial relationship, the second water flow pipe having a second branch extending radially outwardly in the filter layer for discharging filtered water out of the rotatable drum and introducing washing water into the rotatable drum. The rotatable drum is rotatably mounted on the first and second water flow pipes. The first and second water flow pipes are fixedly mounted on a support base.

Abstract: A water purification device comprises a raw water channel forming plate extending spirally along the inner wall of a filter tank. A collector for collecting filtered water, positioned in the layer of the filter medium substantially at the center of the raw water channel forming plate, is also disclosed. Since the raw water is filtered from the periphery of the layer of the filter medium and the continuous raw water channel formed by the spirally extending raw water channel forming plate enables the number of influx points of raw water into the raw water channel to be reduced to one at a minimum, the structure is simplified and manufacture costs are reduced.

Abstract: In a water purification apparatus in which a granular filter medium is washed by agitation imparted to the filter medium, a pipe adapted for collection of purified water is mounted within the heap of precipitated granular filter medium and enclosed by a filter mesh to prevent outflow of the filter medium. Sliding contact elements such as turns of a wire wound about the collecting pipe or linear brush-like members inserted on the collecting pipe are also provided between the pipe and the filter mesh so that both the inner and outer surfaces of the filter mesh may be cleaned during countercurrent washing of the filter medium for assuring optimum water permeation at all times.

Abstract: A water purification device includes a plurality of tiers of flow channel or passage defining plates along the inner surface of the wall of a filter tank, a water collecting strainer at about the center of the tank for collecting purified water, and raw water distribution conduit means for distributing and supplying raw water to the respective flow channels. Since raw water permeates into the filter layer in the tank not only from above but from below and from the peripheral zone of the tank, and the purified water is collected at the center and drawn to the outside, the filtration efficiency is improved as compared to the case where raw water is permeated into the filter medium from above and the purified water is collected at the bottom of the tank.

Abstract: A water purification device wherein a separation tank is placed in a space of a filter tank above a mass of granular filter material, the separation tank having an inlet through which washing water which has been supplied into the filter tank for washing the filter material and the entrained granular filter material is supplied into the separation tank during washing of the filter material. The water and entrained filter material are caused to descend in a vortex flow and the granular filter material is separated and collects at an outlet at the bottom of the separation tank which is closed by a cover member. A rod- or cylinder-like member is mounted generally along the central vertical axis of the separation tank. The vortex flow of the washing water is reversed and caused to flow in a gyratory flow along the outer peripheral surface of the rod-like member and to be discharged from the filter tank through a water outlet.

Abstract: This invention relates to an apparatus for calcining cement having a suspension preheater containing an auxiliary furnace in the preheater part, characterized in that said apparatus has an adjustable throttle positioned between a kiln and a mixing chamber where a combustion gas from the kiln and a combustion gas from the auxiliary furnace are joined and mixed with each other, said adjustable throttle comprising a quadrilateral flue where at least one of the walls is movable in order to control the amount of combustion gas from the kiln.