SMALL-SIZE ELASTIC SEALING FEATURE OF INNER PART OF MAIN COMBUSTION SEALING DIE PUSHING

• Main Authors: STEVEN HONKALA, OKANO TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 20.12.2018
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a multi-layer gasket which opposes to a permanent deformation due to expansion and contraction of a cylinder bore sleeve upon heat load.SOLUTION: Gasket layers 26, 28 exhibit primary sealing beads 56, 58 between an inner side edge 30 and an outer side region 34 and a secondary sealing bead 62 between the primary sealing beads and the inner side edge. The secondary sealing bead is extended in a circumferential direction around an aperture 32 and in radial directions along a secondary radial direction length 64. The primary sealing beads are extended in circumferential directions around the secondary sealing bead and in radial directions along a first radial direction length 60. A stopper layer 66 provides such gasket elasticity as to be arranged adjacently to at least a part of the gasket layers, be extended in radial directions from the outer side region to the inner side edge, be completely overlapped in the first radial direction length of the primary sealing beads and the second radial direction length of the secondary sealing bead and be increased adjacently to the inner side edge.SELECTED DRAWING: Figure 1A 【課題】熱負荷の際にシリンダボアスリーブの伸縮からの永久的な変形に対抗する多層ガスケットを提供する。【解決手段】ガスケット層２６、２８は、内側端縁３０と外側領域３４との間の一次封止ビード５６，５８と、一次封止ビードと内側端縁との間の二次封止ビード６２とを提示する。二次封止ビードは、アパーチャ３２の周りに周方向にかつ第２の径方向長さ６４に沿って径方向に延在する。一次封止ビードは、二次封止ビードの周りに周方向にかつ第１の径方向長さ６０に沿って径方向に延在する。ストッパ層６６はガスケット層の少なくとも一部に隣接して配設され、外側領域から内側端縁に径方向に延在して一次封止ビードの第１の径方向長さおよび二次封止ビードの第２の径方向長さに完全に重なって、内側端縁に隣接して増大したガスケット弾性を提供する。【選択図】図１Ａ