Abrégé

A biased dual tip seal arrangement for the rotor (106) of a rotary engine (102). The dual tip seals (100-T, 100-L) are located on opposite corners of the tip (130) of a planetary rotor (106). The rotor (106) orbits within a cutout (126) in a main rotor (108). The seals (100-T, 100-L) are biased away from the corners to make sealing contact with the sealing surfaces of the asymmetrical lobe (112) and the cutout (126) of the main rotor (108). Biasing is implemented with springs (1202, 1302, 1412) and with conduits (1006) that pressurize the area under the seals (100-T, 100-L). An asymmetrical lobe (112′) includes a transition zone (802) on the surface of the lobe (112). In the transition zone (802), at least one seal (100-T, 100-L) on the tip (130) maintains contact with the surface (112′) while alternating contact from one seal (100-T, 100-L) to the other.

Classes IPC  ?

• F02B 53/00 - Aspects combustion interne des moteurs à pistons rotatifs ou oscillants
• F02B 55/08 - Organes extérieurs coopérant avec les pistons rotatifsCarcasses
• F01C 1/12 - "Machines" ou machines motrices à piston rotatif d'un type à engrènement extérieur, c.-à-d. avec engrènement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne
• F01C 1/28 - "Machines" ou machines motrices à piston rotatif du type à contre-engrènement, c.-à-d. avec mouvement en sens opposé des organes coopérants aux points d'engagement d'un autre type qu'à axe interne
• F01C 19/00 - Dispositions relatives à l'étanchéité dans les "machines" ou machines motrices à piston rotatif
• F01C 19/04 - Joints à déplacement radial pour fluide énergétique en matériau rigide

Abrégé

A biased dual tip seal arrangement for the rotor (106) of a rotary engine (102). The dual tip seals (100-T, 100-L) are located on opposite corners of the tip (130) of a planetary rotor (106). The rotor (106) orbits within a cutout (126) in a main rotor (108). The seals (100-T, 100-L) are biased away from the corners to make sealing contact with the sealing surfaces of the asymmetrical lobe (112) and the cutout (126) of the main rotor (108). Biasing is implemented with springs (1202, 1302, 1412) and with conduits (1006) that pressurize the area under the seals (100-T, 100-L). An asymmetrical lobe (112') includes a transition zone (802) on the surface of the lobe (112). In the transition zone (802), at least one seal (100-T, 100-L) on the tip (130) maintains contact with the surface (112') while alternating contact from one seal (100-T, 100-L) to the other.

Classes IPC  ?

• F01C 1/00 - "Machines" ou machines motrices à piston rotatif

Abrégé

Apparatus for a fuel injector nozzle (202) interfacing a fuel injector valve assembly (102) with a chamber inside an internal combustion engine housing (104). The nozzle (202) has one end (302) that is outboard relative to the chamber (110) in the housing (104) and an opposite end (404) that is inboard relative to the housing (104). The outboard end (302) is attached to the fuel injector valve assembly (102). The inboard end (404) has a surface that is substantially flush with the surface (110) of a lobe (204-L) defining the chamber (110). The nozzle (202) is hollow with a grouping of discharge ports (402) at the inboard end (404). The nozzle (202) receives fuel from the injector valve assembly (102) and ejects the fuel as spray from the ports (402) in a manner to optimize fuel combustion in the chamber (110).

Classes IPC  ?

• F02M 61/14 - Disposition des injecteurs par rapport aux moteursMontage des injecteurs

Abrégé

An apparatus for facilitating combustion in a rotary engine (100) with planetary rotors (106) orbiting inside a housing (104) containing a main rotor (108) In various embodiments, the planetary rotor (106) has a multi-faceted face (116) that engages a bridge (114) during the transition from the compression cycle to the combustion cycle with the bridge (114) and face (116) forming a dynamic seal, the planetary rotor (106) has a face (116) engaging a bridge (114) during the transition from the compression cycle to the combustion cycle such that the bridge (114) and face (116) have a gap that allows gas flow from the trailing volume (408) to the leading volume (410) and the gap is sufficiently small to quench flame propagation from the leading volume (410) to the trailing volume (408).

Classes IPC  ?

• F02B 53/00 - Aspects combustion interne des moteurs à pistons rotatifs ou oscillants