低轉速發動機 的英文怎麼說

中文拼音 [dīzhuǎnsùfādòngjī]
低轉速發動機 英文
wooly-type engine
  • 轉 : 轉構詞成分。
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 發 : 名詞（頭發） hair
  • 機 : machineengine
  • 低轉速 : slow-speed of revolution
  1. 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。
  2. Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism

    超聲波電機（ ultrasonicmotor ）是近二十年來發展起來的一種新原理電機，其原理不同於傳統的電磁型電機，它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動，通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比，具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點，因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。
  3. In this experiment, adjusting the throttle to the specific position, and letting engine rotary speed change from the lowest to the highest, at the same time, the data of the water temperature, the fuel temperature, the air press and the rotary speed can be noted. moreover, we can measure the fuel quantity and the ignition angle

    實驗中，調節節氣門在特定位置，並讓發動機的速度依次從最低變化到最高，同時記錄水溫、油溫、進氣壓力和轉速等數據，還可以測出相應的噴油量、點火提前角。
  4. Electromotor joins with high efficiency selected water pump, scm ( single chip micyoco ) control system commands water pump according to cooling water temperature which substitutes traditional strap - driving mechanism pump and forms tael - level intellectualized control cooling system combining with electromotion control of cooling fan. consequently it realizes that water pump and fan autoregulate with engine working status and assures t hat cooling water temperature keeps in the best range all the time and advances the reliability of engine working and realizes exact control of cooling water temperature in deed

    選用高效率水泵與電機聯接，改由單片機控制系統根據冷卻水溫控制水泵的工作，代替傳統的皮帶帶動的機械水泵，結合冷卻風扇的電動控制形成兩級智能化控制的冷卻系統，從而，實現了水泵和風扇轉速隨發動機工況變化的自動調節，真正實現了冷卻水溫的精確控制，保證了冷卻水溫始終保持在最佳范圍內，大量減少傳熱損失降低油耗，並提高了發動機工作的可靠性。
  5. Driver ' s position : optimised layout, based on the latest ergonomic principles, considerably reduced vibration and noise, throunh insulating the operator ' s compartment from the vehicle itself by means of shock absorbes, seat adjustable to operator ' s height and weight, as well as being spring suspended and hydraulically damped. lindedouble pedal control system offers accurate reversing without. changing gear. linde central control lever operates all mast functions

    駕駛室:根據人機工程學原理對駕駛室進行了優化設計.駕駛室與車身之間由減震墊隔離，大大地降低了震動和噪音，司機座下有彈簧和液壓減震裝置，並可根據駕駛員的身高和體重進行調整，以獲得最舒適的狀態.林德雙踏板控制系統具有無需切換即可實現靈敏向的功能:林德集中控制桿控制門架的提升，下隆和傾斜動作.發動機的轉速可根據提升和其它功能對輸出功率的需要而自動調節.護頂架與司機座聯成一體，並可裝配成舒適的全封閉駕駛室
  6. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  7. The results for two equations were analyzed and compared, which showed that the gyro effect of the crankshaft system could be ignored for low rotating - speed engine and it should be considered for higher rotating - speed engine

    結果表明，對于低轉速發動機，曲軸轉動的陀螺效應不明顯，而對于高轉速的發動機，陀螺效應不能忽略，應以考慮陀螺力矩的方程為基礎進行設計分析。
  8. The timing - and - quantitation precision injection of lpg was realized with high - speed lpg solenoid valve and a set of electronic control system, which was designed by the author and can flexibly control the gas supply system of lpg. based on the analysis of experimental data got by comparing the performances before and after the application of the set of equipment on lr6105q12 diesel engine, the effects of load, speed and replace ratio, etc on the emissions of smoke, hc and co of dual fuel engine were expounded. through optimization, the smoke emission was utmostly reduced and the emissions of hc and co were within the government restriction

    為此，本文通過對各個方案進行詳細比較，選擇了電控多點順序噴射的供氣方案；利用高速lpg噴射閥和自己獨立開發出一套電子控制系統對lpg供氣進行靈活地控制，實現了lpg的定時定量噴射，並把這套裝置應用到中國一拖生產的lr6105q12柴油機上，在對改裝前後的發動機進行大量試驗和分析的基礎上，闡明了負荷、轉速、摻燒比等因素對雙燃料發動機的煙度、 hc 、 co等排放的影響情況，並且通過優化，最大限度地降低了發動機的煙度排放，同時使hc 、 co排放限制在國家標準規定的范圍之內。
  9. When cruising under low power demand conditions, the engine & motor will turn relatively slowly, while they will turn faster when accelerating or climbing a hill

    在低功率條件下巡航時，發動機和電動機轉速相對較慢，然而，加速和爬坡時，旋轉快。
  10. Then analytical measurements of the noise were carried out on both of the turbines by means of modern acoustic apparatus and a conclusion has been found that the noise of the concentrated wind energy turbine is lower than the one of the ordinary wind energy turbine and the root of the trouble to cause noise chiefly originates from the turbine blade. besides, the result of analytical measurement also reveals that the power output both of the wind energy turbines will increase with the increase of the wind speed and unfortunately does the noise too. in order to lower the noise, a measures of noise reduction have been advanced that an active method is to develop a wind energy turbine run at a lower rating of wind speed while the passive method is to adopt a board drilled tiny holes, having established a sound technological basis for the development of a kind of wind energy turbine of low noise and high level in the world

    主要對濃縮風能型風力發電機在正常運轉時，噪聲產生的機理進行了理論分析研究，並與普通型風力發電機的噪聲進行了對比實驗分析；利用現代聲學測試手段對兩類機型進行測試與分析，得出濃縮風能型風力發電機產生噪聲低於普通型風力發電機和葉輪是風力發電機產生噪聲的主要部件的結論；通過對兩類機型的噪聲、輸出功率的測試，得出隨著風速的增加，兩類風力發電機的輸出功率在增加，產生的噪聲也在增加的結論；提出了進一步降低濃縮風能型風力發電機噪聲的措施，從主動降噪方面，研製低額定轉速的發電機；從被動降噪方面，採用微孔穿板的降噪結構；為研究開發一種國際上低噪聲、高水平的風力發電機打下了良好的技術基礎。
  11. Firstly, the performance is calculated at the design point of the ws - 9 aeroengine by using the numerical model established. secondly, after obtaining the performance coupling parameters, the steady - state performance of the non - designed points is caculated. third, respectively make the limitation of rotate speed of the high pressure rotor and low pressure rotor equal to corresponding parameters of designed point, after the data calculated compared with those of designed point and actual testing of the manufactory, the error is obtained

    首先，用所建立的發動機數學模型計算了發動機在設計點的各項性能，第二，根據發動機各部件的耦合特性參數計算得到發動機在非設計點狀態下的各項穩態性能，第三，分別設定限制高壓轉子轉速和低壓轉子轉速逼近設計點條件下對應的參數，將計算得到的性能數據與設計點性能進行了比較，並將非設計點的計算結果與生產試車過程實測的性能數據進行對比，給出了該穩態模型計算結果與實際試車數據的誤差。
  12. 2. firstly this paper introduce the whole machine balancing principle and method for dual - rotor systems with little rotating speed difference firstly, then discuss key points such as picking up base signal, picking up " pai " signal, measuring rotor speed, capturing the value of wave crest and through, calculating the phase values of unbalanced weight, processing odd phases and finding each rotor ' s amplitude. on the foundation of above theories, using signal process technique and chip microprocessors technique, we developed a portable intellectual instrument, the first domestic device. which can balance dual - rotor system with little rotating speed difference quickly and accurately

    本文從不解拍整機動平衡原理出發，在詳細討論基準信號、拍振信號的提取；轉速的測量；拍峰、拍谷的捕捉：不平衡相位的求法、特殊相位角的處理；內、外轉子幅值的確定等關鍵問題的基礎上，應用信號處理技術和單片機技術研製成功國內第一臺性能穩定、操作簡單、成本低廉且平衡速度快，平衡精度高的便攜式微速差雙轉子現場整機智能動平衡儀。
  13. At the conditions with the same fuel injection quantity per cycle and the same engine speed, with the increase of the additive mass fraction in the fuel, the ignition and heat release timings brought forward, the peak of heat release rate increased and the operating range at low engine load was enlarged obviously. however, excessive additives will make the engine be prone to knock, run rudely and shorten the operating range at high engine load

    在相同循環噴油量和相同轉速的條件下，隨著添加劑質量分數的增加， hcci著火和燃燒放熱提前，燃燒放熱峰值提高，低負荷工況范圍明顯拓寬，但過高的添加劑質量分數會使得發動機爆震，工作粗暴，導致高負荷工況變窄。
  14. For the case, we put forward the methods for decreasing vibration at the peak speeds and study the influence of support plan for vibrational character of rotor - support system of the aeroengine

    研究降低峰值轉速下振動水平的方法及支承方案對發動機轉子?支承系統振動特性的影響，得出了有工程參考價值的結論。
  15. Automatic speed control : the automatic engine speed control system. exclusive to linde ensures that the engine and hydrostatic system are constantly operating at the lowest possible rpm or pump lutput ration, thus saving fuel and reducing emissions

    自動調速系統:林德獨有的發動機自動調速系統，能夠保證發動機和靜壓系統始終以盡可能低的轉速運行，並且保持最低的功率輸出，從而節約能耗，減少排放。
  16. If the engine is heard to be knocking at any time, it must be slowed down at once

    不論什麼時候如果聽到發動機有撞擊聲，都必須立刻降低運轉速度。
  17. The parameters estimation with the least square method is applied to the open speed system. the least square estimation with forgetting factor and the least square error self - tuning control are applied to the close speed system and controller parameters arc obtained from estimation parameters directly

    採用最小二乘參數估計演算法對某渦扇發動機低壓轉速進行開環辨識，採用帶遺忘因子的最小二乘估和直接獲得控制器參數的自校正控制對該系統進行閉環控制。
  18. All in all, additives are beneficial to improve the ignition of hcci at low engine load and extend the operating range. nevertheless, the knock happens obviously while the range is extending at the high engine speed and load

    總之，添加劑有利於改善hcci發動機低負荷著火和拓寬工作范圍，但是在發動機高轉速和高負荷工況下，在工況范圍拓寬的同時， hcci爆震傾向明顯，發動機工作不穩定。
  19. The main features of the system are as follows : ( 1 ) there is no direct mechanical connection between engine and wheel, so the engine can be adjusted to work at high efficiency zone. ( 2 ) the power of the engine can be transmitted to driving axle directly by the electromagnetic force, and only part of power is converted from mechanical energy into electric energy, so the power losses in energy conversion can be reduced. ( 3 ) the system can also operate as electronic continuously variable transmission

    其特點是：發動機獨立於車輪運轉，可始終在高效區工作；發動機的動力主要通過電磁力直接傳給驅動橋，僅有少部分動力經過機械能電能機械能的轉換，降低了能量轉換過程中的損失；且該系統兼備無級變速器的功能。
  20. Roller drive machinery is low drive launched one of the machinery, providing a steady rotation, no gap, excellent torque

    滾子傳動機械是低速傳動發動機械的其中一種，提供穩定的旋轉，沒有間隙的現象，具有優良的扭矩。
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