
基本信息:
- 专利标题: ANTI-CAVITATION DIESEL CYLINDER LINER
- 专利标题(中):防雷柴油缸衬套
- 申请号:US11225523 申请日:2005-09-13
- 公开(公告)号:US20060249105A1 公开(公告)日:2006-11-09
- 发明人: Miguel Azevedo
- 申请人: Miguel Azevedo
- 申请人地址: US MI Southfield
- 专利权人: Federal-Mogul World Wide, Inc.
- 当前专利权人: Federal-Mogul World Wide, Inc.
- 当前专利权人地址: US MI Southfield
- 主分类号: F02F1/10
- IPC分类号: F02F1/10
摘要:
A wet-style cylinder liner (16) for a diesel engine is provided with a surface texture (28) to combat the effects of cavitation-induced erosion. The surface texture (28) can be formed as a coating (30) of manganese phosphate applied about the outer surface (26) of the cylinder liner (16) within the coolant flow passage (20) of the engine. The manganese phosphate is applied in such a manner that a crystalline structure of 2-8 μm average grain size, blocky in nature, clearly faceted, with no cauliflower-like formations and a discernable channel network surrounding the crystals is formed. This crystalline structure works with the natural adhesion and surface tension effects within the liquid coolant to create a stagnant fluid layer about the outer surface (26) of the cylinder liner (16). The stagnant fluid layer functions like a self-healing armor plate. When rapid flexing of the cylinder liner (16) produces cavitation bubbles, these bubbles are held at a distance from the outer surface (26) by the stagnant fluid layer. As the bubbles implode, their kinetic energy is dissipated within the stagnant fluid layer instead of directly upon the outer surface (26) of the cylinder liner (16). The manganese phosphate coating (30) acts as a labyrinth to anchor water molecules, or the engine coolant, and thus promote formation of the stagnant fluid layer.
摘要(中):
用于柴油发动机的湿式气缸套(16)设置有表面纹理(28),以抵抗气蚀引起的侵蚀的影响。 表面纹理(28)可以形成为在发动机的冷却剂流动通道(20)内围绕气缸套(16)的外表面(26)施加的磷酸锰的涂层(30)。 以这样的方式施加磷酸锰,使得形成平均粒径为2-8μm的晶体结构,其性质是块状的,没有菜花状结构,并且形成了围绕晶体的可辨别的通道网络。 该结晶结构与液体冷却剂内的天然粘合和表面张力效应一起工作,以在气缸套(16)的外表面(26)周围形成停滞流体层。 停滞流体层的功能就像一个自我修复的装甲板。 当气缸套(16)的快速弯曲产生空化气泡时,这些气泡通过停滞流体层保持在与外表面(26)一定距离处。 当气泡爆裂时,它们的动能在停滞流体层内消散,而不是直接位于气缸套(16)的外表面(26)上。 磷酸锰涂层(30)作为迷宫来锚定水分子或发动机冷却剂,从而促进停滞流体层的形成。
公开/授权文献:
- US07146939B2 Anti-cavitation diesel cylinder liner 公开/授权日:2006-12-12
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F02 | 燃烧发动机;热气或燃烧生成物的发动机装置 |
----F02F | 燃烧发动机的汽缸、活塞或曲轴箱;燃烧发动机的密封装置 |
------F02F1/00 | 汽缸;汽缸盖 |
--------F02F1/02 | .具有冷却装置 |
----------F02F1/10 | ..用于液冷 |