42results about How to "Reduce torque value" patented technology

A method reduces a time delay or lag between a commanded upshift and a resultant upshift event in vehicle. The method detects the commanded upshift, calculates a scheduled engine torque reduction torque value as a function of an unmanaged torque, and reduces an input torque value from the engine using the calculated scheduled torque. A powertain includes an engine, a transmission, a torque converter, clutches that are selectively engageable to provide at least six forward speed ratios, a reverse speed ratio, and a neutral condition, and a controller. The controller has an algorithm controlling an operation of an off-going clutch and the on-coming clutch during a speed ratio change representing an upshift event. The algorithm calculates a scheduled torque value as a percentage of an unmanaged torque level of the engine, and controls the off-going and on-coming clutch through the speed ratio change using the calculated scheduled torque value.

A method reduces a time delay or lag between a commanded upshift and a resultant upshift event in vehicle. The method detects the commanded upshift, calculates a scheduled engine torque reduction torque value as a function of an unmanaged torque, and reduces an input torque value from the engine using the calculated scheduled torque. A powertain includes an engine, a transmission, a torque converter, clutches that are selectively engageable to provide at least six forward speed ratios, a reverse speed ratio, and a neutral condition, and a controller. The controller has an algorithm controlling an operation of an off-going clutch and the on-coming clutch during a speed ratio change representing an upshift event. The algorithm calculates a scheduled torque value as a percentage of an unmanaged torque level of the engine, and controls the off-going and on-coming clutch through the speed ratio change using the calculated scheduled torque value.

A lubricating composition includes about 50 weight percent to about 70 weight percent of a blend including an olefinic resin and a wax. The lubricating composition also includes about 15 weight percent to about 30 weight percent of a fatty acid amide. The lubricating composition further includes about 10 weight percent to about 20 weight percent of a zinc salt of a fatty acid having carboxylate groups each having 8 to 24 carbon atoms.

There are provided tapered roller bearings which support a pinion shaft. Inner races have large rib faces each having a recessed surface shape on which large-diameter end faces of tapered rollers slide. The surface roughness of the large-diameter end face is σ1 [μmRa] is 0.025 or more. In addition, assuming the surface roughness of the large rib face is σ2 [μmRa], (σ12+σ22)1 / 2 is 0.17 [μmRa] or less. The sliding portion of the large-diameter end face and the sliding portion of the large rib face are made of a carburized steel, and the carbon content in a matrix phase in a surface layer portion of each of the sliding portions to a depth of 50 μm from a surface is 0.8 wt % or more, the surface hardness thereof is in the range of Rockwell C63 to 67, and a surface retained austenite amount is set to be 20% or more and 25% or less.

A torque limited fitting is provided having a head and a body, which in certain embodiments may be assembled by an operator. The body of the torque limited fitting has a passageway therethrough for receiving and removably holding tubing. The torque limited fitting may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems.

The invention provides a power down flow processing method of a Plug-in automobile. The power down flow processing method comprises reducing a torque value of an engine to a firth preset scope when receiving key OFF gear signals, then reducing a rotate speed value of a generator to a second preset scope, sending stop instructions to a battery control unit, enabling the battery control unit to control a battery to stop power supply, sending instructions for closing an insulated gate bipolar translator (IGBT) to the generator, and discharging electric energy in the generator. The IGBT in the generator is closed after the torque value of the generator is reduced to the firth preset scope and the rotate speed value of the generator is reduced to the second preset scope, a load torque of the engine is small, a power generation assembly produces small electric energy, a direct current side of the generator cannot produce high transient voltage in the moment when the IGBT is closed, performance of the IGBT is not influenced, and service life of the generator is prolonged.

The invention provides a high-heat-resistance modified PGA material and a preparation method thereof. The modified PGA material is prepared from the following raw materials in parts by weight: 70-80 parts of polyglycolic acid resin, 5-15 parts of filler, 10-30 parts of castor oil mixture and 0.5-1 part of nucleating agent; wherein the castor oil mixture is a mixture of castor oil with purity of 90% and methanol, and the mass ratio of castor oil to methanol is 7.5-8.5:2. The nucleating agent is selected from one or more of talcum powder, inositol and sebacic acid dimethylbenzene hydrazide; the filler is selected from one or more of nano montmorillonite, nano calcium carbonate and edible starch. The castor oil mixture, the nucleating agent and the filler are used for modifying the polyglycolic acid resin, so that the modified PGA material has high crystallization performance and can be used for preparing high-heat-resistance products.

The invention relates to modified high-density polyethylene composition used in extrusion blow molding, and a preparation method thereof. The composition comprises blended components of, by weight: 100 parts of high-density polyethylene, 0.5-15 parts of powdered styrene-butadiene rubber, and 0.1-1.0 parts of a lubricant. The modified high-density polyethylene composition provided by the invention has relatively high toughness, relatively high high-temperature impact resistance, relatively high low-temperature impact resistance, good fluidity, and low extrusion torque value. The preparation method provided by the invention is advantaged in easy processing. With the method, products such as casing barrels, casing pots and automobile fuel tanks with high impact resistances can be manufactured by extrusion blow molding.

There are provided tapered roller bearings which support a pinion shaft. Inner races have large rib faces each having a recessed surface shape on which large-diameter end faces of tapered rollers slide. The surface roughness of the large-diameter end face is σ1 [μmRa] is 0.025 or more. In addition, assuming the surface roughness of the large rib face is σ2 [μmRa], (σ12+σ22)1 / 2 is 0.17 [μmRa] or less. The sliding portion of the large-diameter end face and the sliding portion of the large rib face are made of a carburized steel, and the carbon content in a matrix phase in a surface layer portion of each of the sliding portions to a depth of 50 μm from a surface is 0.8 wt % or more, the surface hardness thereof is in the range of Rockwell C63 to 67, and a surface retained austenite amount is set to be 20% or more and 25% or less.

The present invention relates to sealing valves used in the petroleum and gas extraction industry, in particular but not exclusively, to medium- or high-pressure ball valves. In particular, the present invention relates to a sealing assembly (101, 102) for ball valves (1), and to a ball valve comprising such an improved sealing assembly. The sealing assembly ensures excellent sealing performance at low and high pressures by exclusively using a thermoplastic material sealing element (31), thus completely eliminating the drawbacks which afflict the sealing system of known type, in particular in relation to the reliability of the sealing elements made of elastomeric material.

The invention discloses a reciprocating pump valve deck and a matched valve box thereof, belongs to the technical field of petroleum engineering equipment, and aims to solve the problems that an existing equipment valve deck is unreliable in fixing and a valve box is short in service life. The valve deck comprises the valve box and a valve deck body, a valve box inner cavity is formed in the valvebox, valve box screw holes are formed in the upper portion of the valve box inner cavity, and a plurality of valve box screw holes are formed in the upper surface of the valve box. The valve deck body comprises a valve deck cone and a valve deck boss, a valve deck sealing groove is formed in the valve deck cone, a sealing ring is mounted in the valve deck sealing groove, a valve deck chamfer is arranged on the bottom surface of the valve deck cone, a plurality of valve deck through holes are formed in the valve deck boss, and the valve deck through holes are circumferentially formed along thevalve deck boss. Double-head studs are arranged, one end of each double-head stud is in threaded connection with the corresponding valve box screw hole, the other end of each double-head stud is sleeved with the corresponding valve deck through hole, and the double-head studs are sleeved with nuts above the valve deck through holes and are in threaded connection with the nuts. The reciprocating pump valve deck and the matched valve box thereof are disclosed.

The invention provides a composition containing polyethylene glycol terephthalate. The composition contains 100 parts by weight of polyethylene glycol terephthalate, 0.1-1.5 parts by weight of epoxidized soybean oil, 3-18 parts by weight of a brominated epoxy resin, 0.05-0.3 parts by weight of phthalic anhydride, 0.08-0.6 parts by weight of sodium carbonate, 10-55 parts by weight of a glass fiber, and 0.3-0.7 parts by weight of a nucleating agent. The invention also provides a preparation method of the composition containing polyethylene glycol terephthalate. The processing and injection molding of the composition containing polyethylene glycol terephthalate is easier than that of present PET materials under an increased strength condition.

The invention discloses an anti-typhoon LED street lamp, which comprises an embedded base, a hydraulic barrel, a hydraulic rod, a lighting device, an anti-torque system, a pressure relief device, a torque detection module, a dustproof cover plate, a dustproof movable plate and a wire, wherein the anti-torque system, the pressure relief device and the torque detection module are arranged in the embedded base. According to the invention, the anti-torque system is arranged, when there is a typhoon, if the force borne by the lighting device is too large, the force borne by the lighting device is applied to a torque shaft through the hydraulic barrel and the hydraulic rod in order to prevent the device from being blown down by the typhoon, the torque shaft generates torque, an anti-rotating rodis cut off by shearing force formed between a shearing gear and a torque shell when the torque of the torque shaft is too large, a driving motor is triggered to enable the hydraulic barrel to returnto the original position, and through cooperation of the pressure relief device, when the driving motor is triggered, the pressure in the hydraulic barrel can be released, and the height of the lighting device is reduced, so that the torque value of the torque shaft is reduced, and the effect of resisting typhoon is achieved.

The invention relates to a high-slip hydraulic coupler with multiple flow passages, which comprises a shell, a pump pulley fixedly connected with the shell and a worm wheel arranged corresponding to the pump pulley, wherein the shell is provided with an input belt pulley; the worm wheel is fixedly connected with an output shaft; the input belt wheel, the shell and the pump pulley are connected integrally and are arranged on the output shaft through a bearing. The high-slip hydraulic coupler with the multiple flow passages is characterized in that the inner side of the pump pulley is a sunken hollow cavity which is internally provided with guide vanes; the inner cavity of the worm wheel is also provided with guide vanes; the worm wheel is arranged in the sunken hollow cavity of the pump wheel; the guide vanes of the inner sides of the worm wheel and the pump pulley are arranged correspondingly; a guide ring is arranged between the pump pulley and the worm wheel; the guide vanes are arranged at intervals to form the flow passages; the inner side ends of the flow passage spaces are provided with flow baffle plates transversely or are not provided with the flow baffle plates; the flow passage on the pump pulley comprises a pump pulley main flow passage, a pump pulley auxiliary flow passage and a pump pulley assistant flow passage; and the flow passage on the worm wheel comprises a worm wheel main flow passage and a worm wheel auxiliary flow passage. The high-slip hydraulic coupler with the multiple flow passages can be adaptive to continuous use time of a cable of a cable drum, so that the problems of high frequency and high speed of the cable drum are solved; and the high-slip hydraulic coupler with the multiple flow passages is adjustable in torque and wide in application.

A shift device includes an output shaft, a hub, a speed gear, a sleeve, a synchronizer ring, lever members, and a spring. The lever members have torque receiving portions contactable with projections of the synchronizer ring to receive friction torque from the projections. Contact positions of the torque receiving portions and the projections in a synchronization operation are set at a hub side of the lever members and an axial-directional distance between points of support and the contact positions is less than a thickness of the lever member.