A fluid transmission device comprises: a cover member coupled to a drive shaft; a converter mechanism constituted by a pump impeller coupled to the cover member, a turbine runner connected to a driven shaft, and a stator disposed between the pump impeller and the turbine runner, a converter chamber
A fluid transmission device comprises: a cover member coupled to a drive shaft; a converter mechanism constituted by a pump impeller coupled to the cover member, a turbine runner connected to a driven shaft, and a stator disposed between the pump impeller and the turbine runner, a converter chamber through which a working fluid flows being formed in the interior thereof; a lockup mechanism having a clutch piston provided in a lockup chamber that is surrounded by the cover member and the turbine runner, which engages and disengages the drive shaft and driven shaft by supplying a control fluid to a clutch oil chamber surrounded by a back surface of the clutch piston and the cover member; an inlet passage for leading the working fluid into the lockup chamber from the outside; a communicating passage for leading the working fluid into the converter chamber from the lockup chamber; and an outlet passage for leading the working fluid to the outside from the converter chamber.
대표청구항▼
1. A fluid transmission device, comprising: a cover member coupled to a drive shaft;a converter mechanism comprising a pump impeller coupled to said cover member,a turbine runner connected to a driven shaft, which opposes said pump impeller and is covered by said cover member, anda stator disposed b
1. A fluid transmission device, comprising: a cover member coupled to a drive shaft;a converter mechanism comprising a pump impeller coupled to said cover member,a turbine runner connected to a driven shaft, which opposes said pump impeller and is covered by said cover member, anda stator disposed between said pump impeller and said turbine runner, for effecting power transmission between said drive shaft and said driven shaft via a working fluid that flows through a converter chamber formed internally;a lockup mechanism having a clutch piston that is provided in a lockup chamber surrounded by said cover member and a back surface of said turbine runner, for activating said clutch piston using a control fluid that is supplied to a clutch oil chamber surrounded by said cover member and a back surface of said clutch piston, and effecting power transmission bypassing said converter mechanism by engaging and disengaging said drive shaft and said driven shaft;an inlet passage for leading said working fluid into said lockup chamber from the outside;a communicating passage for leading said working fluid into said converter chamber from said lockup chamber;an outlet passage for leading said working fluid to the outside from said converter chamber;a hollow cylindrical support member which is provided surrounding an outer peripheral surface of said driven shaft;an inner ring which is fixedly mounted on said support member and supports said stator; anda bearing provided in a bearing providing space formed between an inner peripheral surface of said support member and an outer peripheral surface of said driven shaft,wherein said inlet passage comprises a main route and a branch route, said main route includes a first inlet passage formed by cutting a first notch in an inner peripheral surface of said inner ring towards outer peripheral side, and said outlet passage includes a first outlet passage formed by cutting a second notch in an outer peripheral surface of said inner ring towards an inner peripheral side,wherein said first notch and said second notch are formed in different circumferential direction positions relative to said support member, said second notch being non-annular,wherein said bearing providing space forms said branch route, both ends of said bearing providing space being connected to said main route extending in parallel with said first inlet passage at the same location in an axial direction but at the different location in a radial direction, andwherein an orifice is provided at an inlet part of said branch route. 2. The fluid transmission device according to claim 1, wherein said lockup mechanism comprises a clutch guide connected to said cover member, a clutch hub connected to said turbine runner, and a frictional engagement member disposed in a clutch space surrounded by said clutch guide and said clutch hub, which is engaged and disengaged in accordance with an operation of said clutch piston,wherein said lockup chamber is partitioned by said clutch guide and said clutch hub into an inner peripheral side space on a diametrical direction inner peripheral side and an outer peripheral side space on a diametrical direction outer peripheral side via said clutch space,wherein said clutch guide is formed with a guide side through hole connecting one of said outer peripheral side space and said inner peripheral side space in said lockup chamber with said clutch space while said clutch hub is formed with a hub side through hole connecting the other of said outer peripheral side space and said inner peripheral side space in said lockup chamber with said clutch space, andwherein said inlet passage is connected to said inner peripheral side space while said communicating passage is connected to said outer peripheral side space. 3. The fluid transmission device according to claim 1, wherein said pump impeller is supported rotatably by a pump side thrust bearing positioned between an inner peripheral portion side face of said pump impeller and an inner peripheral portion side face of said stator and held by a holding member provided on said inner peripheral portion side face of said stator, andwherein said outlet passage includes a passage comprised of a recessed groove formed in a back surface of said holding member so as to extend radially on a side face of said stator. 4. The fluid transmission device according to claim 1, wherein a fitting portion structure comprised of a cover side fitting member provided on an inner peripheral surface of said cover member and a piston side fitting member provided on a back surface of said clutch piston is provided in said clutch oil chamber, and by fitting said cover side fitting member to said piston side fitting member, said clutch piston can rotate integrally with and move axially relative to said cover member. 5. The fluid transmission device according to claim 1, wherein said turbine runner is supported rotatably by a turbine side thrust bearing disposed between an inner peripheral portion side face of said turbine runner and an inner peripheral portion side face of said stator, andwherein said turbine side thrust bearing is covered by a cover to restrict a flow of working oil between said inner peripheral portion side face of said turbine runner and said inner peripheral portion side face of said stator. 6. The fluid transmission device according to claim 1, wherein said lockup mechanism comprises a clutch guide connected to said cover member, a clutch hub connected to said turbine runner, and a frictional engagement member disposed in a clutch space surrounded by said clutch guide and said clutch hub, which is engaged and disengaged in accordance with an operation of said clutch piston,wherein said lockup chamber is partitioned by said clutch guide and said clutch hub into an inner peripheral side space on a diametrical direction inner peripheral side and an outer peripheral side space on a diametrical direction outer peripheral side via said clutch space,wherein said clutch guide is formed with a guide side through hole connecting one of said outer peripheral side space and said inner peripheral side space in said lockup chamber with said clutch space while said clutch hub is formed with first and second hub side through holes connecting the other of said outer peripheral side space and said inner peripheral side space in said lockup chamber with said clutch space,wherein said inlet passage is connected to said inner peripheral side space and said communicating passage is connected to said outer peripheral side space,wherein said first hub side through hole radially penetrates a tooth tip portion forming a small diameter side surface in an outer peripheral portion having a spline groove and said second hub side through hole radially penetrates a tooth base portion forming a large diameter side surface in the outer peripheral portion,wherein said guide side through hole radially penetrates a tooth base portion forming a large diameter side surface of the spline groove, andwherein said clutch space and said outer peripheral side communicate through said guide side through hole. 7. The fluid transmission device according to claim 6, wherein said first hub side through hole is larger than said second hub side through hole.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.