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US 5,397,224 AGranted
Elongated roller side seals for a rotary engine
AssigneeBando Kiko Co., Ltd.
InventorsYoshihiro Bando, Kazuaki Bando
Life of this patent
Estimating the term…
Abstract
A rotary engine 1 includes a side housing 2, an intermediate housing 12, a rotor housing 3, a rotor 4 accommodated rotatably in the rotor housing 3; side seal grooves 6 formed on both side surfaces 5 and 25 of the rotor 4; springs 8 for urging side seals 7 fitted respectively in the side seal grooves 6 toward the side housing 2 and the intermediate housing 12, and flexible linear rollers 10 each accommodated between a side wall surface 9 of the side seal groove 6 and the side seal 7.
Claims67
A rotary engine comprising:
- a rotor housing;
- a side housing and an intermediate housing arranged on opposite sides of said rotor housing, respectively:
- a rotor rotatably disposed in said rotor housing and having two side surfaces, one said side surface facing said side housing, another of said side surfaces thereof facing said intermediate housing, said rotor having an axis;
- a side seal groove formed on each of said side surfaces of said rotor;
- side seals disposed in respective side seal grooves;
- springs for pressing said side seals against said side housing and said intermediate housing, respectively;
- linear roller means disposed along said side seals between said side seals and side wall surface of said side seal grooves;
- and
- a thin metal sheet disposed along a side wall surface of each said side seal groove facing a rotor axis-side side surface of said side seal, said linear roller means abutting said thin metal sheets, respectively.
6 more elements
A rotary engine comprising:
- a side housing;
- a rotor housing;
- a rotor disposed in said rotor housing and rotatable about an axis;
- a side seal groove formed on a side surface of said rotor facing said side housing;
- a side seal disposed in said side seal groove;
- a spring for urging said side seal against said side housing;
- linear roller means disposed along said side seal between said side seal and a side wall surface of said side seal groove;
- and
- a thin metal sheet disposed along said side wall surface of said side seal groove facing a rotor axis-side side surface of said side seal, said linear roller means abutting said thin metal sheet.
6 more elements
A rotary engine comprising:
- a rotor housing;
- a side housing and an intermediate housing arranged on opposite sides of said rotor housing, respectively;
- a rotor rotatably disposed in said rotor housing and having an axis and two side surfaces, one said side surface facing said side housing, another of said side surfaces thereof facing said intermediate housing;
- a side seal groove formed on each of said side surfaces of said rotor;
- side seals disposed in respective side seal grooves;
- springs for pressing said side seals against said side housing and said intermediate housing, respectively;
- and
- flexible linear elongated roller means disposed along each said side seal between said side seal and a side wall surface of said seal groove;
- a thin metal sheet disposed along said side wall surface of said side seal groove facing a rotor axis-side side surface of said side seal, said linear roller means abutting said thin metal sheet.
6 more elements
A rotary engine comprising:
- a rotor housing;
- a side housing and an intermediate housing arranged on opposite sides of said rotor housing, respectively;
- a rotor rotatably disposed in said rotor housing and having two side surfaces, one said side surface facing said side housing, another of said side surfaces thereof facing said intermediate housing;
- a side seal groove formed on each of said side surfaces of said rotor;
- side seals disposed in respective side seal grooves;
- springs for pressing said side seals against said side housing and said intermediate housing, respectively;
- and
- flexible linear elongated roller means disposed along each said side seal between said side seal and a side wall surface of said seal groove, said linear roller means including a plurality of flexible linear elongated rollers arranged end-to-end.
5 more elements
A rotary engine comprising:
- a rotor housing;
- a side housing and an intermediate housing arranged on opposite sides of said rotor housing, respectively;
- a rotor rotatably disposed in said rotor housing and having two side surfaces, one said side surface facing said side housing, another of said side surfaces thereof facing said intermediate housing;
- a side seal groove formed on each of said side surfaces of said rotor;
- side seals disposed in respective side seal grooves;
- springs for pressing said side seals against said side housing and said intermediate housings, respectively:
- and
- flexible linear elongated roller means disposed along each said side seal between said side seal and a side wall surface of said seal groove, said linear roller means including at least first and second rows of flexible linear elongated rollers, the first row of the linear rollers being arranged parallel to the second row of the linear rollers, the linear rollers of the first row having end faces in end-to-end relation relative to one another, the linear rollers of the second row having end faces in end-to-end relation relative to one another, said end faces of the linear rollers in the first row being spaced from said end faces of the linear rollers in the second row.
5 more elements
A rotary engine comprising:
- a rotor housing having a side surface;
- a rotor rotatably disposed in said rotor housing and having an axis;
- a side seal groove formed on a side surface of said rotor facing said side surface of said housing;
- a side seal disposed in said side seal groove;
- a spring for urging said side seal against said side surface of said housing;
- flexible linear elongated roller means disposed along said side seal between said side seal and a side wall surface of said side seal groove;
- and
- a thin metal sheet disposed along said side wall surface of said side seal groove facing a rotor axis-side side surface of said side seal, said linear roller means abutting said thin metal sheet.
5 more elements
A rotary engine comprising:
- a rotor housing having a side surface;
- a rotor rotatably disposed in said rotor housing;
- a side seal groove formed on a side surface of said rotor facing said side surface of said housing;
- a side seal disposed in said side seal groove;
- a spring for urging said side seal against said side surface of said housing;
- and
- flexible linear elongated roller means disposed along said side seal between said side seal and a side wall surface of said side seal groove, said linear roller means including a plurality of flexible linear elongated rollers arranged end-to-end.
4 more elements
A rotary engine comprising:
- a rotor housing having a side surface;
- a rotor rotatably disposed in said rotor housing;
- a side seal groove formed on a side surface of said rotor facing said side surface of said housing;
- a side seal disposed in said side seal groove;
- a spring for urging said side seal against said side surface of said housing;
- and
- flexible linear elongated roller means disposed along said side seal between said side seal and a side wall surface of said side seal groove, said linear roller means including at least first and second rows of flexible linear elongated rollers, the first row of the linear rollers being arranged parallel to the second row of the linear rollers, the linear rollers of the first row having end faces in end-to-end relation relative to one another, the linear rollers of the second row having end faces in end-to-end relation relative to one another, said end faces of the linear rollers in the first row being spaced from said end faces of the linear rollers in the second row.
4 more elements
Dependencies are inferred from the claim text.