Multiple turning path valve for hydraulic motors - has four pre-controlled centring switching cylinders at 90 deg intervals on axis cross forming cruciform arrangement, may include eight differential cylinders
DE4408954A1
Device for screw rolling, swarf removing machining of evolvent tooth flanks
DE4231021A1
Abrasive finishing of gear-teeth using helical rotor drive - involves pendular motion with radius and angle adjusted to determine relative displacement of edges of tool and machining wheel
DE4221427A1
Accurate cutting or shaping of internal or external evolute gear teeth - involves tool shaped as globoidal worm gear for plastic deformation by rolling, grinding or cutting
DE4207512A1
Hydrodynamic globoidal worm gear drive - has convex,hardened,ground steel globoidal threads with evolute flanks
DE4207511A1
Grinding process for correcting involute profile of internal gear - depends on use of grinding tool in form of convex globoid worm which is meshed with rack formed dresser to produce corrected involute and then used to grind gear
DE4207510A1
Tool for grinding tooth profile of hardened internal gear - has form of convex globoid worm with CBN abrasive surface that is dressed using diamond coated dressing tool
DE4112658A1
Worm and wheel ball drive - has worm inside hollow shaft driven through balls engaging helical groove in worm
DE4111570A1
Globoid worm gear lubricated by viscous pressure fluid - has elastically deformable wheel tooth flanks automatically changing by reaction forces
DE4111576A1
Worm gear with globoidal screw and worm wheel - has teeth spring-mounted on bolt with flat steel spring and screws
DE4111571A1
Articulated single- or double-acting motor - has four jointed bars hinged to work with guide rods moving in slots
DE3934221A1
Stirling engine with programmed control of electromagnet excitation - includes process computer for gas exchange by optimal control of free piston oscillation with phase shift
