three-way catalytic converter造句
例句與造句
- In the first chapter , the research backgrounds , the development and function of twc ( three - way catalytic converter ) are introduced
第一章闡述了論文研究的背景及催化轉(zhuǎn)化器在國內(nèi)外的發(fā)展，介紹了催化轉(zhuǎn)化器的作用，為催化轉(zhuǎn)化器的研究奠定基礎。 - In the study , the performance of dual - bed three - way catalytic converters of conventional structure and with deflector are compared by numerical simulation and experiment
在研究過程中，采用數(shù)值模擬和試驗相結(jié)合的方法比較了常規(guī)結(jié)構(gòu)和帶有彌散器結(jié)構(gòu)雙載體三效催化轉(zhuǎn)化器的性能。 - At last , the impact of the monolith length , cell density , wall thickness and noble metal dosage on the light - off characteristic and conversion efficiency of three - way catalytic converter are analyzed and could provide a guide for the optimization of three - way catalytic converter
本文還對載體長度、孔密度、孔道壁厚和催化劑用量對催化轉(zhuǎn)化器起燃特性和轉(zhuǎn)化效率的影響進行了分析,為載體參數(shù)的優(yōu)化設計提供了依據(jù)。 - According to its configuration , the monolith is considered to be a porous media . based on the monolith model and the use of software fluent , the research on the light - off characteristic and conversion efficiency of three - way catalytic converter is processed
在所建催化轉(zhuǎn)化器模型的基礎上,根據(jù)載體具有分布細小孔道的特點,將其作為多孔介質(zhì)處理,利用fluent軟件,對冷起動階段三效催化轉(zhuǎn)化器的起燃特性和轉(zhuǎn)化效率作了數(shù)值模擬。 - It uses electronic control technology and places an oxide sensor in emission system , then according to the change of the rate of the air to fuel , adjust automatically the ejection of fuel . so it can improve dramatically the automobile performance . after installing three - way catalytic converter , it can make the pollutions lower 20 % ~ 50 % than the same vehicle , and the power of car reduce only 5 %
對于適合我國現(xiàn)階段的電子閉環(huán)控制lpg燃料混合系統(tǒng)進行研究，此方法采用電子控制技術(shù)，在排氣系統(tǒng)中安裝了氧傳感器，可以根據(jù)排氣空燃比的變化，自動反饋調(diào)節(jié)供氣量，使燃氣汽車性能得到改善，安裝三元催化轉(zhuǎn)換器后，可以使污染物排放較同等水平的汽油車降低20 - 50左右，而發(fā)動機功率下降僅達5左右。 - It's difficult to find three-way catalytic converter in a sentence. 用three-way catalytic converter造句挺難的
- Relative to euro , euro emission regulations add the test of emission in 40s after cold - start . in order to meet the more strict emission regulations , the key question is how to make the three - way catalytic converter to light - off and increase the conversion efficiency . so it is necessary to do a numerical simulation on light - off characteristic and conversion efficiency of three - way catalytic converter in cold - start stage
歐排放標準相對于歐排放標準增加了冷起動頭40s的有害排放物測試,為滿足更嚴格的排放法規(guī),如何使三效催化轉(zhuǎn)化器盡快起燃,提高對排氣的轉(zhuǎn)化效率是關(guān)鍵問題,因此對三效催化轉(zhuǎn)化器在發(fā)動機冷起動階段的起燃特性和轉(zhuǎn)化效率進行數(shù)值模擬研究是大勢所趨。 - The factors that have effect on the car ' s emission such as cleaning inside engine , size of three - way catalytic converter and leakage of exhaust system etc have been tested and analyzed , and some related parameters are determined . in order to ensure that the emission meets the requirements of the euro ii standard at one time , to pass the examination of 80000km durability , and to achieve excellent performance indicator while assuring the emission requirements , the design of intake manifold and camshaft profile is optimized , the test of engine performance and car ' s emission and environment performance have been conducted . through comparison by test , it is shown that the carburetor engine after retrofitting to electronic fuel injection engine has achieved good level in terms of emission and performance , and has been upgraded to the same level as the engine of japan mitsubishi and suzuki
為了滿足國家環(huán)保法規(guī)不斷提高的要求，本文對化油器式發(fā)動機改造成電控燃油噴射式發(fā)動機進行了研究與開發(fā)；確定了工程方案和開發(fā)目標；對機內(nèi)凈化、三元催化器體積、排氣系統(tǒng)漏氣等對整車排放的影響進行了試驗和分析，確定了相關(guān)參數(shù)；為了確保對整車排放的影響進行了試驗和分析，確定了相關(guān)參數(shù)；為了確保排放一次通過歐標準，并完成8萬公里耐久性考核，在確保排放的同時達到良好的性能指標，對進氣歧管、凸輪軸型面的設計進行了優(yōu)化；并進行了發(fā)動機性能測試，整車排入測試和環(huán)境性能測試。 - ( 5 ) " electronic controlled bypassing air + three - way catalytic converter " system used for carburetor petrol engine which " is capable of setting up working condition for three - way catalytic converter and can solve the contradiction between emission control ( controlling hc , co , nox at same time ) and power , torque , fuel consumption having been put forward
( 5 )建立了針對化油器式車輛的“電控補氣+三效催化轉(zhuǎn)化器”系統(tǒng)，通過采用雙回路電控補氣可以為三效催化轉(zhuǎn)化器建立良好的工作條件，較好的解決了化油器式汽油機動力性、排放(同時降低hc 、 co和nox )之間的矛盾。 - Exhaust gas oxygen sensor ( ego ) which is installed in the exhaust pipe of the engine is a significant component in the electronic fuel injection . it has the ability to probe the concentration of oxygen in the exhaust pipe , and can transfer concentration signal to voltage signal which is passed to electronic control unit ( ecu ) . in this way the air - fuel ratio can be controlled to the strait range of stoichiometrical point and the three - way catalytic converter consequently can work better
車用氧傳感器是電噴系統(tǒng)的關(guān)鍵部件，安裝在發(fā)動機的排氣管上，能夠探測排氣管中的氧氣的濃度，然后將濃度信號轉(zhuǎn)變成電壓信號并傳送給電控單元ecu ，從而把空燃比控制在理論空燃比附近，配合三元催化反應器進行后處理凈化。