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    Manufacture of pistons
    2.
    发明授权
    Manufacture of pistons 失效
    活塞制造

    公开(公告)号：US4752995A

    公开(公告)日：1988-06-28

    申请号：US647651

    申请日：1984-09-06

    申请人： John G. Collyear ,  David A. Parker ,  Michael L. P. Rhodes

    发明人： John G. Collyear ,  David A. Parker ,  Michael L. P. Rhodes

    IPC分类号： F02F3/00 ,  B21K1/18 ,  B23P15/00 ,  B23P15/10 ,  F16J1/02

    CPC分类号： F16J1/02 ,  B23P15/003 ,  B23P15/10 ,  Y10T29/49249 ,  Y10T29/49989 ,  Y10T29/49996

    摘要： A method is disclosed of manufacturing a piston having a skirt on which are formed a plurality of bearing surfaces, each bearing surface being at a predetermined axial position on the skirt, being spaced outwardly of the skirt to a required radial dimension and extending around the skirt with a required circumferential dimension. The method comprises forming the bearing surfaces in at least two stages. First a plurality of projections are formed on a skirt of the piston with each projection being at an axial position in which a bearing surface or surfaces are to be located. The radial and/or axial dimension of the projection exceeds the required corresponding dimension or dimensions of the bearing surfaces. A second step then forms bearing surfaces of the required dimensions. A second form of piston is formed with cylindrical portions which are alternately offset to one side or other of the piston axis to form, one each side of the piston, alternate projecting bearing surfaces and recessed skirt portions.

    摘要翻译： 公开了一种制造具有裙部的活塞的方法，在该裙部上形成有多个支承表面，每个支承表面位于裙部上的预定的轴向位置处，从裙部向外间隔开所需的径向尺寸并围绕裙部延伸 具有所需的圆周尺寸。 该方法包括至少两个阶段形成支承表面。 首先，在活塞的裙部上形成有多个突起，每个突起处于轴承表面或其表面将位于其中的轴向位置。 突起的径向和/或轴向尺寸超过所需的相应尺寸或尺寸。 然后第二步形成所需尺寸的支承面。 活塞的第二形式形成有圆柱形部分，其圆柱形部分交替地偏移到活塞轴线的一侧或另一侧，以形成活塞的每一侧，交替的突出轴承表面和凹入的裙部。

    Pistons
    3.
    发明授权
    Pistons 失效
    活塞

    公开(公告)号：US4535682A

    公开(公告)日：1985-08-20

    申请号：US406099

    申请日：1982-08-06

    申请人： John G. Collyear ,  David A. Parker

    发明人： John G. Collyear ,  David A. Parker

    IPC分类号： F02F3/00 ,  F01M1/08 ,  F16J1/02 ,  F16J1/08 ,  F16J9/20

    CPC分类号： F16J1/08 ,  F16J1/02 ,  F01M2001/083 ,  F02F3/00

    摘要： A piston for an engine or motor has a skirt which includes two portions which are urged towards an associated cylinder during the various strokes of the working cycle. Each portion is provided with a bearing surface or surfaces for sliding engagement with the associated cylinder during reciprocation. The piston is provided with formations which pass lubricant to and over the bearing surfaces.

    摘要翻译： 用于发动机或电动机的活塞具有裙部，该裙部包括在工作循环的各种冲程期间被推向相关联的气缸的两个部分。 每个部分设置有用于在往复运动期间与相关联的气缸滑动接合的支承表面或表面。 活塞设有使润滑剂通过轴承表面和上方的结构。