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公开(公告)号：US4391231A
公开(公告)日：1983-07-05
申请号：US226593
申请日：1981-01-21
摘要： The present invention is to provide a cylinder head for air-cooled engines wherein a part of the top wall is depressed to form a rocker arm chamber and a cooling wind passage reaching the upper part of a suction port from the side of an exhaust port is formed between the bottom wall of the rocker arm chamber and the upper wall of a cylinder fitting surface, whereby the advantage of the performance of a conventional overhead valve engine is retained as it is, the defect of the increase of the height is kept as little as possible and the cooling performance is not reduced.
摘要翻译： 本发明提供一种用于风冷发动机的气缸盖，其中顶壁的一部分被压下以形成摇臂室，并且从排气口侧到达吸入口上部的冷却风通道为 形成在摇臂室的底壁和气缸配合面的上壁之间，由此保持常规顶置阀发动机的性能的优点，高度的增加的缺点保持为少 尽可能地降低冷却性能。
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公开(公告)号：US4404936A
公开(公告)日：1983-09-20
申请号：US225658
申请日：1981-01-16
CPC分类号： F01M13/00 , F01M13/0011 , F01M13/04 , F02B2275/34 , F02F7/006
摘要： The present invention relates to a breather device for overhead valve engines characterized by being provided with a breather chamber arranged on the side of a cylinder or crank chamber, a push rod chamber formed on the side of and integrally with said cylinder or crank chamber and a cylinder head and making the periphery of each push rod housed within it a blow-by gas passage connecting the above mentioned crank chamber with a rocker chamber and a blow-by gas discharging passage connecting the above mentioned rocker chamber and breather chamber with each other, whereby the pressure fluctuation within the crank chamber can be utilized to utilize the ventilating action of a one-way breather valve, to thereby lubricate the rocker chamber, to need no oil pump and to reduce the cost and the rigidity of the cylinder including the crank case and of the cylinder head can be elevated.
摘要翻译： 本发明涉及一种用于顶置阀发动机的通气装置，其特征在于，具有布置在气缸或曲柄室侧的通气室，形成在所述气缸或曲柄室一侧并与其一体的推杆室， 气缸盖，并且使每个推杆的周边容纳在其中，连接上述曲柄室的摇动气室和连接上述摇臂室和通气室的窜气排出通道的窜气通道， 由此可以利用曲柄室内的压力波动来利用单向通气阀的通风作用，从而润滑摇臂室，不需要油泵，并降低包括曲柄的气缸的成本和刚性 外壳和气缸盖可升高。
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