Abstract

A displacer for an engine includes a body extending along a displacer longitudinal axis from a displacer first end surface to a displacer second end surface. At least one channel extends between a first opening in the displacer first end surface and a second opening in the displacer second end surface and has sidewalls therebetween defining a channel flow path. The first opening is located at a first radial distance from the displacer longitudinal axis in a first radial direction and the second opening is located at a second radial distance from the displacer longitudinal axis in a second radial direction. At least a portion of the channel flow path has a component in an angular direction that is at an angle to both the first and second radial directions.

IPC Classes  ?

• F02G 1/057 - Regenerators
• F02G 5/02 - Profiting from waste heat of exhaust gases

Abstract

A displacer for an engine includes a body extending along a displacer longitudinal axis from a displacer first end surface to a displacer second end surface. At least one channel extends between a first opening in the displacer first end surface and a second opening in the displacer second end surface and has sidewalls therebetween defining a channel flow path. The first opening is located at a first radial distance from the displacer longitudinal axis in a first radial direction and the second opening is located at a second radial distance from the displacer longitudinal axis in a second radial direction. At least a portion of the channel flow path has a component in an angular direction that is at an angle to both the first and second radial directions.

IPC Classes  ?

• F02G 1/05 - Controlling by varying the rate of flow or quantity of the working gas
• F02G 1/053 - Component parts or details
• F02G 1/057 - Regenerators
• F16J 1/00 - PistonsTrunk pistonsPlungers

Abstract

Various embodiments are described herein for methods and devices that relate to a drive mechanism, and a power mechanism that can be used 5 individually or together in an engine to obtain increased efficiency are provided according to the teachings herein. The embodiments described herein generally employ at least one of drive mechanisms that provide for non-sinusoidal motion and embedded piston arrangements.

IPC Classes  ?

• F02B 75/04 - Engines with variable distances between pistons at top dead-centre positions and cylinder heads
• F01B 7/20 - Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other
• F01B 9/02 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups with crankshaft
• F16H 21/28 - Crank gearingsEccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with cams or additional guides
• F16H 21/36 - Crank gearingsEccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and- crank motion
• F01B 9/06 - Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
• F02B 75/32 - Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Abstract

Various embodiments are described herein for methods and devices that relate to a drive mechanism, and a power mechanism that can be used 5 individually or together in an engine to obtain increased efficiency are provided according to the teachings herein. The embodiments described herein generally employ at least one of drive mechanisms that provide for non-sinusoidal motion and embedded piston arrangements.

IPC Classes  ?

• F01B 7/20 - Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other
• F16C 3/22 - CranksEccentrics
• F16H 21/28 - Crank gearingsEccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with cams or additional guides
• F16H 21/34 - Crank gearingsEccentric gearings with two or more connecting-rods to each crank or eccentric
• F16H 21/36 - Crank gearingsEccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and- crank motion