Active stabilizer bar system for a vehicle chassis

An adjustable vehicle stabilizer bar system for use in applying variable forces on a vehicle suspension, the stabilizer bar comprising:

• a tubular housing having a longitudinal axis including a first fluid port and a second fluid port;
• an impeller having a piston positioned in the housing separating the housing into a first sealed cavity in fluid communication with the first fluid port and a second sealed cavity in fluid communication with the second fluid port, the impeller having a first shaft and an opposing second shaft axially extending from the piston, at least one of the first and the second shafts including a helical groove angularly oriented about the axis, the impeller linearly translatable along the housing axis;
• and
• at least one rotor positioned substantially within the housing and axially separated by the impeller, the at least one rotor rotatably connected to one of the impeller first and the second shafts by a bearing engaged in the helical groove in the respective first or second shaft, wherein linear movement of the impeller along the housing axis rotates the at least one rotor with respect to the housing.

An adjustable vehicle stabilizer bar for use in applying variable forces on a vehicle suspension, the stabilizer bar comprising:

• an elongate single piece hollow housing having a longitudinal axis;
• a first and a second fluid port in the housing;
• an impeller positioned in the housing along the axis having a piston positioned between the first and the second fluid port sealingly engaged with the housing defining first and second sealed cavities in the housing, a first and a second shaft axially extending from opposite sides of the piston, each shaft having a helical groove angularly oriented about the axis in opposite directions;
• a first rotor and a second rotor substantially positioned inside the housing each having a sleeve defining an axial bore for receipt of the respective first and the second impeller shafts, each sleeve further defining a through slot in communication with the axial bore and in alignment with the respective helical groove, the first and the second rotor each connected to a stabilizer bar arm connected to the vehicle suspension;
• and
• a bearing positioned in the rotor sleeve slot and the helical groove wherein on selected application of a pressurized fluid through at least one of the first and the second ports the piston is linearly translated along the axis thereby rotating the stabilizer bar arms in opposite directions with respect to the housing to vary the forces applied by the stabilizer bar on the vehicle suspension.