查询词典 exhaust valve

It researches the regularity of A (geometrical cross section area of valve), Sc (obtained by the definition of effective cross section area of valve), Sa and Sv (obtained by sonic velocity air exhaust method) to the change of the opening of valve, x. By contrastive method this thesis discusses the reliability and correlation of all methods above for solving effective cross section area of valve.

研究了 A， Sc （根据试验由有效截面积 S 的定义算出）， Sa及 Sv随阀开度 x 变化而变的规律，通过对比探讨了求解以上各种有效截面积方法的可靠性及相互关系等。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

United States Foot valve main products are: butterfly valve, ball valve, globe valve, gate valve, check valve, regulating valve, pressure reducing valve, flame arrester, needle valves, control valves, discharge valve, breathing valves, mud valves, exhaust valves, filters, bottom valves, diaphragm valves, plug valves, plunger valves, thermal valves, water control valve, balance valve, trap, solenoid valve, safety valve, electric valves, pneumatic valves, power station valve, oilfield valves, forged steel valve, stainless steel valves, ceramic valves, anti-corrosion valves, bellows valves, ammonia valves used, food-specific valve, sanitary valves and other industrial-class on a common valve.

美国富特阀门主要产品有：蝶阀、球阀、截止阀、闸阀、止回阀、调节阀、减压阀、阻火器、针型阀、控制阀、放料阀、呼吸阀、排泥阀、排气阀、过滤器、底阀、隔膜阀、旋塞阀、柱塞阀、保温阀门、水利控制阀、平衡阀、疏水阀、电磁阀、安全阀、电动阀门、气动阀门、电站阀门、油田阀门、锻钢阀门、不锈钢阀门、陶瓷阀门、防腐阀门、波纹管阀门、氨用阀门、食品专用阀、卫生级阀门等工业上通用阀门。

Germany forint Valve Co., Ltd. mainly produces products are: butterfly valve, ball valve, globe valve, gate valve, check valve, regulating valve, pressure reducing valve, flame arrester, needle valves, control valves, leak valve, breathing valves, mud valves, exhaust valves, filters, bottom valves, diaphragm valves, plug valves, plunger valves, thermal valves, water control valve, balance valve, trap, solenoid valves, safety valves, electric valves, pneumatic valves, power station valves, oilfield valves, forged steel valve, stainless steel valves, ceramic valves, corrosion valves, high pressure valves, high temperature valves, chemical valves, steam valves, low pressure valves, ammonia valves used, food-specific valve, sanitary valves and other industrial-class general-purpose valve.

德国福林阀门有限公司主要生产产品有：蝶阀、球阀、截止阀、闸阀、止回阀、调节阀、减压阀、阻火器、针型阀、控制阀、放料阀、呼吸阀、排泥阀、排气阀、过滤器、底阀、隔膜阀、旋塞阀、柱塞阀、保温阀门、水利控制阀、平衡阀、疏水阀、电磁阀、安全阀、电动阀门、气动阀门、电站阀门、油田阀门、锻钢阀门、不锈钢阀门、陶瓷阀门、防腐阀门、高压阀门、高温阀门、化工阀门、蒸汽阀门、低压阀门、氨用阀门、食品专用阀、卫生级阀门等工业上通用的阀门。

By 'tuning' the exhaust to suit prevaling conditions, the EXUP valve prevents exhaust blow back during the 75 degree valve overlap period, and this ensures high levels of torque, notably in the 2500-3000rpm range.

微调'排气，以适应prevaling条件下， exup阀，防止排气的打击，回到在75度阀的重叠期，这可确保高水平的扭矩，尤其是在2500年- 3000rpm范围内。

Exhaust brake valve is an auxiliary brake, is a necessary supplement to vehicle service brake; it is to use engine as an air compressor to generate brake torque to decelerate the vehicle; normally it is assembled inside of exhaust pipe, and close the valve to clog the exhaust duct as necessary to reach braking.

排气制动阀是一个辅助制动器，是汽车行车制动器的必要补充，是将发动机作一个空气压缩机使用而产生制动力矩从而对汽车产生减速作用，一般安装在排气管中，在需要减速时关闭阀门以阻塞排气通道而达到制动的效果。

Law, air-flow valve, smoke fire damper and toilet Zhini valve, fume hood, fume hood exhaust outlets and throat hoop, Strong water heater exhaust pipe, vacuum tubes, foam, Extrusion boards, cotton centrifuge tubes, plates, PEF board, geotextile fabric, such as perlite and HVAC insulation materials, while the United States and the ventilation fans and air ventilation fans of the Green Island Acting .

上海文运建筑材料有限公司成立与2005年，是国内合资企业，坐落于嘉定国际机电五金城内，生产经营各种中央空调铝合金进，出风口，散流器，防雨百叶，双层百叶，单层百叶，格栅回风口，风机百叶风口，可开式风口，圆形风管法拦，风量调节阀，防烟防火阀，卫生间止逆阀，油烟罩，油烟罩排气口，喉箍，热水器强排风管，吸尘管，泡沫板，挤塑板，离心棉管，板，PEF板，土工布，珍珠岩等暖通及保温材料等，同时美的换气扇以及绿岛风换气扇的代理。

Other Northstar firsts on the XLR include four-cam continuously variable valve timing; electronically controlled, hydraulically actuated intake and exhaust cam phasers on all four camshafts for extra control; electronic throttle control; low restriction intake and exhaust manifolds and cylinder head ports; close coupled catalytic converters mounted directly adjacent to the exhaust manifolds; and a new air induction system, redesigned for enhanced capacity and noise attenuation.

Other北极星上首创的XLR包括四凸轮连续可变气门正时，电子控制，液压驱动进排气上的额外控制所有四个凸轮轴凸轮相位调节；电子节气门控制；低，限制进气和排气管和缸盖港口；紧密耦合催化转化器直接安装毗邻的排气管，以及一个新的空气感应系统，增强能力和噪声衰减重新设计。

The other is a larger exhaust resistance, such as a valve in the exhaust pipe on the road, small pipe, large damping sensors, non-specific silencer in the exhaust below the liquid level, the gas discharged into the closed or semi-closed containers.

另一类是排气阻力较大，比如在排气管路上有阀、细小弯管、大阻尼传感器、非专用的消音器、在液面以下排气、气体排往密闭或半密闭容器等。

Our product line includes: Water Control Valve Series, Series of Multi-function Control Valve for Pump, Soft Sealed Gate Valve Series, Nationally Unprecedented Slot-type Valve Series, Gate Valves, Butterfly Valves, Check Valves, Globe Valves, Balancing Valves, Exhaust Valves, Mud Valves, Motorized Cock Valves, Three Ways Regulating Valves, Temperature Control Valve, Sluice Gates and etc.

生产的主导产品有：水力控制阀系列、多功能水泵控制阀系列、软密封闸阀系列、填补国内空白的沟槽式连接系列阀门、闸阀、蝶阀、止回阀、截止阀、平衡阀、排气阀、排泥阀、电动二通阀/三通调节阀、温控阀、闸门等。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。