燃燒噪聲 的英文怎麼說
中文拼音 [ránshāozàoshēng]
燃燒噪聲
英文
combustion noise-
Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比；通過提高壓縮比來彌補動力性的損失；以動力性為主控目標，對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節；通過空燃比的合理控制，直接改善發動機的動力性、經濟和排放指標；作為對缸內燃燒過程的理論分析，進行了燃燒特性的實驗測試；對原汽油機和新開發的液化石油氣發動機，進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。The investigation has declared that the fuel injection with bq fuel pump had higher injection pressure, bigger fuel supply rate and shouter fuel supply duration, which would cause the fuel injection quantity and the fule - air mixture to increase during ignition delay period, the pre - mixed combustion to become acutely, and finally result in increased power levels of noise
研究表明，裝配bq噴油泵，噴油系統的噴油壓力較高，供油速率較大和供油持續時間縮短，使得滯燃期的噴油量增加，滯燃期內形成的可燃混合較多，預混燃燒劇烈，導致整機噪聲聲功率級增加。Cylinder pressure and combustion noise of internal combustion engine
內燃機缸內壓力與燃燒噪聲Analysis on the relationship between rise rate of cylinder pressure and combustion noise
車用柴油機氣缸壓力升高率與燃燒噪聲的關系Chapter 6, according to the certain motorcycle, it describes structural radiation yawp, rolling bearing, piston whack, yawp of matching gas of valve cam, gear mesh yawp, burning yawp and the yawp of exhaust and inhaust in details
第六章介紹了對具體摩托車的結構輻射噪聲、滾動軸承、活塞敲擊、氣門凸輪配氣機構噪聲、齒輪嚙合噪聲、燃燒噪聲、進、排氣噪聲進行了全面分析。Based on the variables of inlet length, compression ratio, inlet opening phase and the exhaust closing phase, multi - objective optimization was conducted for power, torque, combustion noise and fuel consumption indicators with constraint conditions of fuel consumption rate and the maximum breakout pressure
以進氣道長度、壓縮比、進氣開啟相位、排氣關閉相位為可變因素；以比油耗、最高爆發壓力為約束條件，針對滿足功率、扭矩、燃燒噪聲和油耗指標進行多目標優化設計。In light of the generation mechanism, the surface radiation noise can be further divided into the combustion noise and the mechanical noise
按照產生的機理，柴油機表面輻射噪聲又可以分為燃燒噪聲和機械噪聲。Generally speaking, for an injection diesel engine, the combustion noise is higher than the mechanical noise ; whilst the case is the other way round for a non - injection diesel engine
一般直噴式柴油機燃燒噪聲要高於機械噪聲，而非直噴式柴油機的機械噪聲則高於燃燒噪聲，但是低速運轉時燃燒噪聲都高於機械噪聲。This will be dealt with in this paper. the discrimination for noise source from qn700 indicates : the fan noise ( 625hz ), the electromagnetism noise ( 962hz ) and the burning noise are the main noise sources
對汽車燃油空氣加熱器中具有典型代表結構的qn700型樣機的測試分析表明：風扇噪聲（ 625hz ） 、電機噪聲（ 962hz ）和燃燒噪聲是加熱器的主要噪聲源。More often than not the combustion noise refers to the noise radiated from the cylinder cap, piston, rod, crankshaft to the engine body propelled by the pressure vibration generated out of the combustion inside the cylinder
燃燒噪聲和機械噪聲很難嚴格區分，通常將由於氣缸內燃燒所形成的壓力振動通過缸蓋、活塞-連桿-曲軸-機體向外輻射的噪聲稱之為燃燒噪聲。The control over the surface radiation noise ( combustion noise and mechanic noise ) is restricted by factors like the engine performance. technically such a control is quite difficult to manage and the noise reduction effect is not so encouraging
發動機表面輻射噪聲（燃燒噪聲和機械噪聲）的控制要受到發動機性能方面的種種限制，從技術角度講難度很大，且降噪量有限。Otherwise it will decrease the flame burning efficiency, even cause the flame blowout or boiler explosion under unsteady burning conditions. so it is necessary to monitor the flame burning states
燃燒不穩定，不僅會降低鍋爐熱效率，產生污染物和噪聲，而且在極端情況下會引起鍋爐爐膛滅火，如處理不當就會誘發爐膛爆燃，造成事故。The disposal of the valves and intake manifold structure not only affect fresh air charge but airflow in the cylinder, which immediately affect combustion efficiency and the performance of dynamic, economic and emission. the structure of the air distributing institution has influence on charging efficiency and the noise of engine. the combustion chamber affects compression scale which has great influence on dynamical performance ; f / v which affects the exhaust of hc ; squash area and clearance which have great influence on the intensity of squash
氣缸蓋的氣門排列方式與氣道結構形式影響進氣充量和氣流在氣缸內的運動，從而影響了燃燒效率，對整機的動力性、經濟性以及排放都有直接的影響；配氣機構的形式影響充氣系數和整機噪聲等；缸蓋燃燒室決定了影響整機動力性能的壓縮比，影響hc排放的f / v和對擠流起決定性作用的擠氣面積以及擠氣間隙，所以燃燒室對整機動力性、經濟性、排放等都有重要的影響；氣缸蓋是整機熱負荷與熱應力最大的部件之一，熱負荷過高將不利於發動機壽命以及可靠性的提高。Characters including : fuel atomization device replaced by gas sprayer, gas supply controlled by gas flux valve ; separate fuel supply from combustion - supporting air, regulate air supply through changing the electioneering voltage to make the fully burning and improve efficiency and reduce fuel consume ; arts and crafts are simple, the modification of the oil heater ' s configuration is little and the heating power is not below the oil heater ' s level ; because of falling the voltage of electioneering, greatly descend the noise of the sample machine compared with the original
其特點是：以燃氣噴頭替代原機燃油霧化裝置；以燃氣流量控制閥控制燃氣的供給；燃氣的供給與助燃空氣的供給相分離；通過改變主電機的電壓，調整空氣的供給量，使燃燒更加充分完全，並進一步提高了熱效率，降低了燃料消耗；工藝簡單，對原機型改動較小；樣機的加熱功率不小於原機型水平；此外，由於主電機電壓的降低，使樣機的整機噪聲比原機大大下降。Direct against the flame picture of stove, having analysed the source of the noise of the picture, a large number of random noises in following to the combustion process have been successful dealt with in using median filtering, have realized the gray transformation and false color shown of the flame picture
針對爐膛火焰圖像，分析了圖像噪聲的來源，運用中值濾波成功地對燃燒過程伴隨著的大量的動態隨機噪聲進行了處理，實現了火焰圖像的灰度變換和偽彩色顯示。分享友人