| 摘要 |
PURPOSE:To reduce the amount of air bubbles introduced into working oil of a control system and to reduce the manufacturing cost of a lubricating apparatus, by drawing up lubricating oil from a lubricating oil sump by connecting a passage branched from a working oil passage of a hydraulic driving means for a transmission to an injection nozzle of an ejector. CONSTITUTION:Working oil in a working oil sump 84 is drawn up by a pump 88 via a strainer 86 and supplied to a hydraulic control means 134 of a gear transmission 124. The working oil is also supplied to a nozzle 112 in an injection nozzle mechanism 110 via a conduit 142 branched from an intermediate part between a relief valve 140 and a check valve 104. With such an arrangement, the injection nozzle mechanism 110 serving as a kind of ejector erected in a lubricating oil reservoir 80 draws up lubricating oil from the oil reservoir 80, and the lubricating oil including working oil is ejected to gears 128, 132 from an injection port 122. |
