Patent ID: 6158968
Filing Date: 2000-12-12
Classification: F04B

Abstract:
A fluid displacement apparatus comprising:a housing enclosing a crank chamber, a suction chamber, and a discharge chamber;a plurality of cylinders in said housing;a plurality of pistons, each of which is slidably disposed within each one of said cylinders; wherein said pistons reciprocate within said cylinders;a drive shaft rotatably supported in said housing;a cam rotor connected to said drive shaft and having a first arm extending therefrom;a plate tiltably connected to said drive shaft, having a surface disposed at an adjustable inclined angle relative to a plane perpendicular to said drive shaft and having a second arm extending therefrom;a coupling means for coupling said plate to said pistons, wherein said pistons are driven in reciprocating motion within said cylinders upon nutation of said plate;a plurality of pin members each having an axis, said axis being tangential to a circular locus formed by a rotation of said pin members; andengaging means in said cam rotor wherein said pin member is disposed slidably to a direction that is perpendicular to said pin member in said engaging means, and said cam rotor is coupled to said slant angle for varying the inclination of said slant plate.