汽车工程师
汽車工程師
기차공정사
TIANJIN AUTO
2011年
7期
46-47
,共2页
发动机水泵%冷却系统%流量%扬程
髮動機水泵%冷卻繫統%流量%颺程
발동궤수빙%냉각계통%류량%양정
Water pump of engine%Cooling system%Flow%Head
水泵是发动机冷却系统的关键零部件,随着现代发动机性能的逐步提升,对水泵进行校核计算已经成为发动机设计开发过程中必不可少的一步。文章通过水泵经典计算法,分别对各机型的水泵进行了校核计算,得到了水泵的流量和扬程。通过扬程和流量的关系,计算出新型机所需的水泵扬程。结果表明原型机水泵的传动比不能满足新型机的散热要求,更改传动比后,整车热平衡满足要求。
水泵是髮動機冷卻繫統的關鍵零部件,隨著現代髮動機性能的逐步提升,對水泵進行校覈計算已經成為髮動機設計開髮過程中必不可少的一步。文章通過水泵經典計算法,分彆對各機型的水泵進行瞭校覈計算,得到瞭水泵的流量和颺程。通過颺程和流量的關繫,計算齣新型機所需的水泵颺程。結果錶明原型機水泵的傳動比不能滿足新型機的散熱要求,更改傳動比後,整車熱平衡滿足要求。
수빙시발동궤냉각계통적관건령부건,수착현대발동궤성능적축보제승,대수빙진행교핵계산이경성위발동궤설계개발과정중필불가소적일보。문장통과수빙경전계산법,분별대각궤형적수빙진행료교핵계산,득도료수빙적류량화양정。통과양정화류량적관계,계산출신형궤소수적수빙양정。결과표명원형궤수빙적전동비불능만족신형궤적산열요구,경개전동비후,정차열평형만족요구。
Water pump is the key part of engine cooling system.With improvement of modern engine＇s performance,it is absolutely necessary step of conducting verifying calculation of water pump in the process of engine design.Verifying calculation on various types of water pump is conducted by using classical calculation method.Water pump head and flow head is gained.Through the relationship between head and flow,the water pump head of new model is calculated.The results indicated that prototype water pump can not meet the cooling requirements of new type.Heat balance of complete vehicle meets the requirements after changing gear ratio.
