Clutch assembly with automatic oil level control system

A clutch assembly including a lubricating liquid level control system, said clutch assembly having a first chamber and both static and dynamic states, said lubricating liquid collecting in the bottom of said first chamber when said clutch is in said static state and being thrown into a cylindrical shape within said first chamber when said clutch is in said dynamic state, comprising:

• (a) a housing which encloses a hydraulic clutch and lubricating liquid outside of said hydraulic clutch;
• (b) a source of pressurized air connected to said housing;
• (c) at least one blow back tube which extends into said housing from a side thereof, said blow back tube including an open port positioned at a vertical level within said housing which is just above a static preferred level of lubricating liquid in said housing, said blow back tube being of a predetermined length such that it extends into said housing to a position at which said open port extends horizontally just past the extent of said liquid cylindrical shape when said clutch is in said dynamic state and said liquid is at said preferred level;
• (d) a chamber connected to supply hydraulic fluid to said clutch;
• and
• (e) an oil evacuation line connected between said blow back tube and said chamber.

In a vehicle which includes selective front wheel drive, a front wheel drive clutch assembly with automatic oil level control, comprising:

• (a) a housing which encloses a hydraulic clutch and lubricating oil outside of said hydraulic clutch, said main drive shaft having both static and dynamic states, said lubricating oil collecting in the bottom of said housing when said main drive shaft is in said static state and being thrown into a cylindrical shape within said housing when said main drive shaft is in said dynamic state;
• (b) a main drive shaft connected to said hydraulic clutch;
• (c) a front wheel drive shaft connected to said clutch when said clutch is actuated;
• (c) a source of pressurized air connected to said housing;
• (d) at least one blow back tube which extends into said housing from a side thereof, said blow back tube including an open port positioned at a vertical level within said first chamber which is just above a static preferred level of lubricating oil in said first chamber, said blow back tube being of a predetermined length such that it extends into said housing to a horizontal level at which said open port extends just past the extent of said oil cylindrical shape when said main drive shaft is in said dynamic state and said oil is at said preferred level;
• (e) a chamber connected through said housing to said clutch to selectively provide hydraulic fluid to said clutch;
• and
• (f) an oil evacuation line connected between said blow back tube and said chamber.