293results about How to "Extended maintenance intervals" patented technology

A blow-by gas refluxing device is provided for an engine system including an engine and an intake air passage communicating with the engine for supplying intake air into the engine. The blow-by gas refluxing device includes a plurality of blow-by gas refluxing passages each having an inlet communicating with the engine and an outlet communicating with the intake air passage. The outlets of the blow-by gas passages communicate with the intake air passage at different positions along the length of the intake air passage and each of the blow-by gas passages has a backflow preventing device disposed therein, so that blow-by gas produced in the engine can flow into the intake air passage via at least one of the blow-by gas refluxing passages throughout the entire operational range of the engine.

A rotating feed distributor for use in connection with rock crushers and other devices. The feed distributor comprises a platform for receiving rocks and a chute having an inlet and outlet wherein the rocks pass through. The feed distributor is designed to reduce wear by evenly distributing rocks into the crusher. The chute is supported and rotated utilizing a motor, drive belts, a sheave structure, thrust bearings and idler wheels. The sheave structure includes a flange and a face which are generally orthogonal to one another. The belts, thrust bearings and idler wheels each engage with the sheave structure.

A gearbox arrangement includes a gearbox housing, a first shaft supported in bearings in the housing, the first shaft containing a cavity which extends eccentrically to the axis of rotation of the first shaft, a second shaft supported in the cavity for rotation and having an end region projecting from the cavity and being provided with gear teeth, and a third shaft supported in the gear box housing for rotation, with the axis of rotation of the third shaft cooperating with the axis of rotation of the first shaft to define a plane. Leakage of lubricant from the housing is prevented by fastening a plate to the first shaft so as to prevent axial movement of the second shaft while containing an opening for the end region of the second shaft. Sealing devices are provided for all of the openings of the gearbox housing as well as for the opening in the plate in order to prevent the escape of lubricant from the gearbox housing.

The invention discloses a tentering shaping conveying device for a magnetic suspension functional fabric. The device comprises a supporting block, and is characterized in that a runway-type static rail is mounted on the supporting block; a magnetic suspension movable rail is sleeved on the static rail; a gear belt is mounted on the magnetic suspension movable rail; a plurality of needle felts are mounted on the gear belt; a rotary motor is mounted at an arc end of the static rail; a gear disc is mounted on the rotary motor; and the gear disc is engaged with the gear belt. The tentering shaping conveying device is reasonable in structure, applicable to various functional coated fabric production occasions, has the advantages of contactless friction, low energy consumption, high kinematic accuracy, low noise, and the like, and can effectively prolong the maintenance and repair period of a system.

A device and process for forming hollow glassware comprising producing solid glass blanks in a manufacturing line, storing the blanks, feeding the blanks to a manufacturing line for forming hollow glassware, preheating the blanks during the feeding step, supplying the preheated blanks to a heating stage, heating to form solid plastically deformable glass globs, transferring the glass gobs to a blow molding stage and blow molding the glass gobs supported by a bottom lifter in a blow mold.

A method for operating a gas and steam turbine plant is provided. In the plant, the flue gas that escapes from a gas turbine is routed through a waste gas steam generator and where a flow medium that is used to drive a steam turbine is conducted in a flow medium circuit that includes several pressure stages. At least one of the pressure stages has an evaporator circuit with a steam collection drum that has a plurality of downpipes connected to the steam collection drum and a plurality of rising pipes downstream of the downpipes that are likewise connected to the steam collection drum and are heated by the flue gas in the waste heat steam generator. The height of the fluid column formed by the flow medium in the downpipes is monitored and a transient dry operation of the evaporator circuit can thus be detected and safeguarded against.

The invention is applied to the technical field of electrical control, and provides a device and a method for controlling a slewing mechanism of a tower crane. The device for controlling the slewing mechanism of the tower crane is composed of a general frequency converter, an alternating-current brake circuit, a slewing motor, a direct-current brake circuit, a forward control circuit, a reversal control circuit, an intermediate-speed control circuit, a high-speed control circuit and a braking control circuit. At the moment of starting, the initial frequency of the general frequency converter is regulated and the speed reduction time is regulated when the output frequency of the general frequency converter is reduced, thus the torque of a tower body is released; under the control of the direct-current brake circuit, the swinging of a lifting arm and the torque of the tower body are released fully; meanwhile, the general frequency converter provides brake signals of the alternating-current brake circuit and brakes a slewing motor, and the lifting arm stops stably; and the comprehensive benefits of convenience in operation, long repairing and maintaining cycle and energy source conservation are realized by utilizing each function of the general frequency converter.

An armature shaft bearing unit, particularly for an angle grinding machine, includes at least one damping element configured to damp vibrations of an armature shaft. The armature shaft bearing unit further includes at least one movement limiting element configured to limit a movement of the armature shaft in at least one damping direction of the at least one damping element.

The invention relates to a domestic appliance for the care of items of washing, with a process air supply, through which a stream of air is able to be directed through a drum for holding the items of washing and which has a mesh filter for separating the lint out of the air stream, and with a facility for removing lint from the mesh filter, with the facility being embodied for removal of lint which is collected outside the process air supply on the mesh filter and includes a rinsing device with which this lint is able to be rinsed out of the mesh filter with rinsing fluid. The invention also relates to a method for removal of lint from a mesh filter of the domestic appliance.

The invention provides self-leveling waterproof mortar. The self-leveling waterproof mortar has the characteristics of high mobility, compact structure, water resistance, excellent durability and thelike. The self-leveling waterproof mortar is prepared from the following components in parts by mass: 20 to 30 parts of cement, 2 to 10 parts of a mineral admixture, 40 to 60 parts of sand, 5 to 15 parts of mineral filler, 0.05 to 0.3 part of a water reduction agent, 0.002 to 0.015 part of a defoaming agent, 0.002 to 0.06 part of a stabilizer, 1 to 5 parts of polymer emulsion, 0.1 to 0.3 part of waterborne epoxy resin emulsion, 0.1 to 0.3 part of a curing agent, and 4 to 10 parts of water. The invention also provides a preparation method of the self-leveling waterproof mortar and application thereof in an inter-line waterproof system of a railway concrete bridge deck.

The fuel injection device has a fuel-supply pump (10) that delivers fuel from a fuel tank (12) to a high-pressure pump (18), wherein the high-pressure pump (18) delivers fuel to a reservoir (24), which is connected to at least one injector (26) that injects fuel into the internal combustion engine. A fuel filter (20) is disposed between the fuel-supply pump (10) and the high-pressure pump (18), wherein a return (60) for fuel from the at least one injector (26) and/or from the reservoir (24) to a low-pressure region is provided. The return (60) is provided with an additional fuel filter (62) and downstream of the fuel filter (20), the return (60) feeds into the connection (16) between the fuel-supply pump (10) and the high-pressure pump (18).

The invention relates to a centrifugal magnetic filter. The filter mainly comprises a cylindrical pipe body, wherein a spiral pipe is arranged on the front part of the pipe body; a spiral rib which spirally extends along the axis of the pipe body is arranged on the pipe wall of the spiral pipe; a magnet is attached outside the pipe wall of the spiral pipe; a filter screen is arranged behind the spiral pipe; the outer edge of the filter screen is attached to the pipe body; and an impurity discharge pipe is arranged on the pipe body between the outer edge of the filter screen and the spiral pipe. Impurity particles in cooling liquid are subjected to the action of centrifugal force and close to the pipe wall under the spiral guide action of the spiral rib, and a cone-shaped filter screen filters impurities in the cooling liquid; a filter screen is not arranged in a central area of the cone-shaped filter screen, so that the flowing cooling liquid cannot be subjected to resistance; and the cone-shaped filter screen is subjected to the scouring action of the cooling liquid, so that the filter cannot be easily blocked by the impurities in the cooling liquid, and the cooling liquid flows smoothly in the filter. The centrifugal magnetic filter is suitable for filtering cooling water of a diesel locomotive and other large traffic vehicles.

The invention teaches that hydrocarbon compositions may be improved in terms of their stability reserve and in terms of their combustion efficiency, by co-use of a conductivity improver. There is optionally present a combustion improver selected from an iron compound, a manganese compound, a calcium compound and a cerium compound; and/or an organic compound selected from a bicyclic monoterpene, a substituted bicyclic monoterpene, adamantane, a substituted or unsubstituted bicyclic tetraterpene, and propylene carbonate.

A portable electric grinder with an air cooling system and connected to a remote stationary voltage supply means (19, 20) via a cable (16), wherein a cooling air duct (21) is provided to connect cooling air passages (23a, b) in the grinder housing (10) to a stationary air pumping device, and the air pumping device is provided with a filter unit (24) for preventing dust and other undesirable particles from entering the air duct (21) and reaching the cooling air passages (23a, b) of the grinder housing (10).

The invention relates to a ceramic component comprising a surface which is resistant to hot gas, and a method for the production thereof. Said ceramic component comprises a ceramic body and a surface which is resistant to hot gas. According to the invention, the surface which is resistant to hot gas is provided with a poorly reactive mineral coating.

The invention discloses a coating fabric stentering shaping and transporting device with magnetic levitation function. The device comprises support blocks. A runway type static guide rail is arranged on the support block. The runway type static guide rail is sleeved with magnetic levitation movement guide rails. The magnetic levitation movement guide rail is provided with a gear belt. The gear belt is provided with a plurality of needle felts. An arc end of the static guide rail is provided with a rotation motor. The rotation motor is provided with a gear disk. The gear disk is engaged with the gear belt. The device of the present invention has a reasonable structure, is applicable for a plurality of functional coating fabric production situations, and has advantages of no contact friction, low energy consumption, high movement precision, low noise and the like. In addition, with the device of the present invention, the repair maintenance period of the system can be effectively prolonged.

The system is an enclosed, oil filled, shaft and thrust bearing assembly which includes an oil pump to circulate the oil throughout the system. The thrust bearing assembly allows the thrust to be directed to the shafts mounting system rather than through the vessels main propulsion engines and isolators thereby reducing vibration and noise emissions. In addition the elimination of thrust loading transmitted directly to the propulsion engines reduces wear and tear on the engine mounts, isolators and engine support structures. The non rotating casing of the shaft assembly allows clean water to flow to the propeller which allows more delivered horsepower to be used by the propeller.