Balancing technique for Ross-type Stirling and other machines

Patent · Tue Sep 15 04:00:00 EDT 1992

OSTI ID:6987667

Wood, J G; Ross, M A

This patent describes an apparatus for balancing inertia forces and rocking couples resulting from the approximately parallel reciprocation of a pair of unequal piston masses linked to a crankshaft and reciprocating out of phase, it comprises: a first counter balance weight mounted to the crankshaft eccentrically of the crankshaft axis of rotation and at an angle which leads the crank throw by a lead angle of more than 180[degrees]; a balance shaft mounted for rotation about an axis parallel to the crankshaft axis and drivingly coupled to the crankshaft and a second counter balance weight mounted eccentrically to the balance shaft and having the product of its mass multiplied by the radial, eccentric offset of its center of mass equal to the product of the first counterbalance weight multiplied by the radial eccentric offset of its center of mass and positioned to lead the crank throw by the lead angle of the first counterbalance mass.

• Assignee: NOV; EDB-93-002551; NOV-92-049121
• Patent Number(s): A; US 5146749
• Application Number: PPN: US 7-684863
• OSTI ID: 6987667
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330201* -- External Combustion Engines-- Stirling Cycle
DESIGN
ENERGY BALANCE
ENGINES
HEAT ENGINES
MACHINE PARTS
SHAFTS
STIRLING ENGINES
TECHNOLOGY ASSESSMENT