Abstract:
A headrest assembly for a chair (9) includes a headrest unit (3), two spaced-apart grip frame members (23) respectively connected to two opposite ends of the headrest unit (3), and two spaced-apart connection frame members (21) respectively connected to the grip frame members (23). The grip frame members (23) gradually extend away from each other from the headrest unit (3) to the connection framemembers (21), respectively. Each of the grip frame members (23) extends obliquely, rearwardly and downwardly from the headrest unit (3) in a manner of being oblique to a first vertical plane (81) that has opposite front and rear surfaces respectively facing front and rear sides of the chair (9).
Abstract in simplified Chinese:本发明揭示一种柴油发动机氢气预助燃方法。柴油发动机包含一汽缸以及连通于汽缸之一进气歧管。柴油发动机氢气预助燃方法包含:透过一气体喷嘴将一氢气雾化形成一氢气喷雾;于柴油发动机运行于一压缩行程之一上死点前,将氢气喷雾以一默认角度及一默认喷量喷入进气歧管内;将氢气喷雾经过进气歧管喷入汽缸内;透过一柴油喷嘴将一柴油雾化形成一柴油喷雾,并将柴油喷雾喷入汽缸内;以及透过氢气喷雾燃烧预先辅助汽缸内之柴油喷雾燃烧。