使用滚柱挺杆或滑动挺杆来传动旋转凸轮轴做上下快速提升动作（开启和关闭发动机的进气阀和排气阀）的现代型汽车发动机似乎不会出现上述自动熄火的情况。
Modern car engines that use rolling or sliding tappets for transmitting the rapid up-down lifting motion of the spinning camshafts—to open and close the engine’s inlet and exhaust valves—seem immune.
进气阀和排气阀密封有问题也会造成压缩时漏气。
The intake or exhaust valves are not sealing properly, again allowing a leak during compression.
通过分析与计算得到了进排气阀片的运动规律曲线。
At last we got the curve of valve's movement law through analysis and calculation.
产品方案：项目产品采用激光烧结热挤压高新工艺技术生产汽车发动机进排气阀座。
Product plan: adopt laser sintering hot-extrusion to manufacture the inlet and outlet valve seat of auto engine.
一个压缩过程分几次压缩，热效率高。3无吸、排气阀，故进、排气的阻力损失几乎为零。
A compression process of times compressed, high thermal efficiency. 3 no suction and discharge valves, the intake and exhaust resistance loss is almost zero.
使用滚柱挺杆或滑动挺杆来传动旋转凸轮轴做上下快速提升动作(开启和关闭发动机的进气阀和排气阀)的现代型汽车发动机似乎不会出现上述自动熄火的情况。
Modern car engines that use rolling or sliding tappets for transmitting the rapid up-down lifting motion of the spinning camshafts-to open and close the engine's inlet and exhaust valves-seem immune.
项目建设背景：汽车发动机进排气阀座是各种汽车发动机的主要部件，目前该产品国内汽车生产厂家大部分从国外进口。
Project Background: the inlet and outlet valve seats of auto engine are main components of various auto engines and internal auto manufacturers import the product mostly.
建立进排气阀模型以确定配气相位； 建立气缸内湍流燃烧、传热、气体流动模型；
The models of combustion, heat transfer and air-flow were established and the model of mechanical efficiency was established as there are frictions between engine parts.
压缩机工作腔不与吸、排气孔口同时相通，无需设置吸、排气阀，这一方面减少了进、排气损失。
Compressor working chamber is not interlink with the suction, exhaust orifice at the same time, without setting suction, exhaust valve, in this regard to reduce the intake, exhaust losses.
左右两侧的两个大孔，分别表示进气阀孔和排气阀孔。
The large holes on the left and right represent the inlet and exhausting valve ports respectively.
进气轴和排气轴用齿轮连接至转子轴， 并且进气轴和排气轴中的每一个都具有至少一个与进气阀口和排气阀口对准的开口。
The intake and exhaust shafts are geared to the rotor shaft and have at least one opening each that is aligned with the intake and the exhaust valve ports.
本发动机自动进气、自动排气，而省去了进、排气阀门及传动系统。
It automatically admits and exhausts the gas, thus omitting gas inlet and outlet valves and driving system.
本发明没有进排气阀，没有平衡块，震动噪音小。
The present invention has no air inlet and outlet valves, and no balancing blocks, and the vibration noise is small.
该空压机在运行时活塞始终在旋转，且运行一周，自动完成进、排气两个压力循环，无须进、排气阀门等配气机构。
When it works, the piston rotates all the time, and runs a circle to automatically complete two pressure circulations of charging and exhausting without air distributing mechanism.
我已对一号辅机作了循回检查，并对进排气阀的间隙进行了惯例检查。
I have made a cycle check on No. 1 auxiliary engine and a general check on the clearance between the intake and exhaust valves.
我已对一号辅机作了循回检查，并对进排气阀的间隙进行了惯例检查。
I have made a cycle check on No. 1 auxiliary engine and a general check on the clearance between the intake and exhaust valves.
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