发明名称 |
Power take-off oil system providing sump drain and pressurized oil to disconnect clutch |
摘要 |
A power take-off (PTO) system for a motor vehicle includes a PTO housing. The PTO housing is mounted to a transmission case. A disconnect clutch assembly is positioned within the PTO housing acting when supplied with a first volume of a pressurized oil from the transmission case to engage an output shaft member. A controlled lube oil circuit is isolated from the first volume of the pressurized oil. The controlled lube oil circuit supplies a second volume of the pressurized oil directly to the disconnect clutch assembly to lubricate the disconnect clutch assembly. A lube oil drain return is connected to the PTO housing. The lube oil drain return receives oil that collects inside the PTO housing to be returned to the transmission case. |
申请公布号 |
US9597958(B2) |
申请公布日期 |
2017.03.21 |
申请号 |
US201514823549 |
申请日期 |
2015.08.11 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
Reinhart Timothy J.;Solak Addison T.;Lee Chi Teck |
分类号 |
B60K17/28;F16H1/02;F16H57/04 |
主分类号 |
B60K17/28 |
代理机构 |
|
代理人 |
|
主权项 |
1. A power take-off (PTO) system for a motor vehicle, comprising:
a PTO housing; a transmission case having a PTO pump and the PTO housing mounted to the transmission case; a disconnect clutch assembly positioned in the PTO housing; and a lube oil drain return connected to the PTO housing at a sump created at a housing low point, the lube oil drain return receiving oil that collects in the sump below the disconnect clutch assembly to be returned by gravity flow to the transmission case. |
地址 |
Detroit MI US |