Transmission lubricating structure
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsYoshiharu Matsuda, Hisatoyo Arima, Yoshinobu Tanaka
Life of this patent
Estimating the term…
Abstract
A transmission lubricating structure which lubricates a transmission using a lubricating fluid, the transmission including a plurality of gear pairs each including a drive gear and a driven gear, includes a lubricating fluid feeding unit for feeding the lubricating fluid to the gears of the gear pairs; wherein the lubricating fluid feeding unit includes a plurality of injection nozzles, each of which directly injects the lubricating fluid to a tooth of the drive gear and a tooth of the driven gear, which teeth start to engage with each other.
Claims19
A transmission lubricating structure which lubricates a transmission using a lubricating fluid, the transmission including a plurality of gear pairs each including a drive gear and a driven gear, and shaft members of the drive gear and the driven gear, the transmission lubricating structure comprising:
- a lubricating fluid feeding unit for feeding the lubricating fluid to the gears of the gear pairs;
- and
- a case for accommodating the plurality of gear pairs;
- wherein the lubricating fluid feeding unit includes a plurality of injection nozzles, each of which directly injects the lubricating fluid to a tooth of the drive gear and a tooth of the driven gear, which teeth start to engage with each other;
- wherein the lubricating fluid feeding unit has a fastened surface fastened to a fastening surface provided on the case;
- wherein the fastening surface is provided with a case passage through which the lubricating fluid guided to the lubricating fluid feeding unit flows;
- wherein the fastened surface is provided with a nozzle passage through which the lubricating fluid flows, the nozzle passage being connected to the case passage;
- and
- wherein the fastening surface is located inward in an axial direction of the shaft members relative to a side wall surface of an inner wall surface of the case, the side wall surface facing the shaft members in the axial direction.
A transmission lubricating structure which lubricates a transmission using a lubricating fluid, the transmission including a plurality of gear pairs each including a drive gear and a driven gear, and shaft members of the drive gear and the driven gear, the transmission lubricating structure comprising:
- a lubricating fluid feeding unit for feeding the lubricating fluid to the gears of the gear pairs;
- and
- a case for accommodating the plurality of gear pairs;
- wherein the lubricating fluid feeding unit includes a plurality of injection nozzles, each of which directly injects the lubricating fluid to a tooth of the drive gear and a tooth of the driven gear, which teeth start to engage with each other, and a nozzle retaining member for retaining the plurality of injection nozzles, inside the case;
- wherein the nozzle retaining member includes a retaining member body having a nozzle surface on which the plurality of injection nozzles are arranged substantially in parallel with an axial direction of each of the shaft members, and a nozzle passage including a main passage extending over a substantially entire length of the retaining member body;
- wherein an injection direction of the injection nozzle placed at an endmost portion of one side in the axial direction is set to be inclined to the endmost portion of one side with respect to a direction orthogonal to the nozzle surface, and the injection direction of the injection nozzle placed at an endmost portion of an opposite side in the axial direction is set to be inclined to the endmost portion of the opposite side with respect to the direction orthogonal to the nozzle surface;
- and
- wherein a region to which the lubricating fluid is injected through the plurality of injection nozzles is longer than a length of the main passage.
A transmission lubricating structure which lubricates a transmission using a lubricating fluid, the transmission including a plurality of gear pairs each including a drive gear and a driven gear, and shaft members of the drive gear and the driven gear, the transmission lubricating structure comprising:
- a lubricating fluid feeding unit for feeding the lubricating fluid to the gears of the gear pairs;
- and
- a case for accommodating the plurality of gear pairs;
- wherein the lubricating fluid feeding unit includes a plurality of injection nozzles, each of which directly injects the lubricating fluid to a tooth of the drive gear and a tooth of the driven gear, which teeth start to engage with each other,
- wherein the lubricating fluid feeding unit has a fastened surface fastened to a fastening surface provided on the case,
- wherein the fastening surface is provided with a case passage through which the lubricating fluid guided to the lubricating fluid feeding unit flows,
- wherein the fastened surface is provided with a nozzle passage through which the lubricating fluid flows, the nozzle passage being connected to the case passage,
- wherein the nozzle passage includes a main passage extending substantially in parallel with an axial direction of the shaft members, a plurality of branch passages branching from the main passage and connected to the injection nozzles, respectively, and an introduction passage connecting the case passage to the main passage, and
- wherein the fastening surface extends along the axial direction of the shaft members.
Dependencies are inferred from the claim text.