IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0204184
(2011-08-05)
|
등록번호 |
US-8714951
(2014-05-06)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
40 |
초록
▼
A rotary chambered fluid energy-transfer device includes a housing with a central portion having a bore formed therein and an end plate forming an arcuate inlet passage, with a radial height and a circumferential extent. The device also includes an outer rotor rotatable in the central portion bore w
A rotary chambered fluid energy-transfer device includes a housing with a central portion having a bore formed therein and an end plate forming an arcuate inlet passage, with a radial height and a circumferential extent. The device also includes an outer rotor rotatable in the central portion bore with a female gear profile formed in a radial portion defining a plurality of roots and an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor. A minimum radial distance between an outer rotor root and a corresponding inner rotor lobe define a duct end face proximate the end plate, wherein the duct end face has a radial height substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage.
대표청구항
▼
1. A method of manufacturing a high expansion ratio energy transfer device, the method comprising the steps of: (a) providing a housing comprising: (1) a central portion having a bore formed therein; and(2) an end plate forming an arcuate inlet passage, the inlet passage comprising a radial height a
1. A method of manufacturing a high expansion ratio energy transfer device, the method comprising the steps of: (a) providing a housing comprising: (1) a central portion having a bore formed therein; and(2) an end plate forming an arcuate inlet passage, the inlet passage comprising a radial height and a circumferential extent;(b) providing an outer rotor rotatable in the central portion bore, the outer rotor comprising a female gear profile formed in a radial portion defining a plurality of roots;(c) providing an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor; and(d) forming a duct by maintaining a minimum radial distance between an outer rotor root and a corresponding inner rotor lobe, the duct comprising a radial height, a circumferential extent, and a depth to define a duct volume, wherein the duct radial height at a duct end face is substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage. 2. The method of claim 1, wherein the duct end face and the inlet passage are disposed at a substantially similar radial location. 3. The method of claim 2 further comprising the step of configuring an interface between the duct end face and the inlet passage to create an inlet passage open area profile as a function of outer rotor rotation that is substantially constant. 4. The method of claim 2, wherein the inlet passage leading edge substantially matches a shape of a corresponding aligned portion of the outer rotor at the duct end face to provide substantially instantaneous inlet passage opening and a trailing edge that substantially matches a shape of a corresponding aligned portion of the outer rotor at the duct end face to provide substantially instantaneous inlet closing. 5. The method of claim 2 further comprising the step of defining the inlet passage circumferential extent to control an expansion ratio of the device. 6. The method of claim 2 further comprising the step of defining the inlet passage circumferential extent to control pulsing of the device. 7. The method of claim 2 further comprising the step of defining the inlet passage radial height to control flow into at least the duct volume via the inlet passage. 8. The method of claim 7, wherein the inlet passage radial height defining step comprises defining an outer edge of the inlet passage by a rotational path of a root of the outer rotor and defining an inner edge of the inlet passage by a rotational path of a lobe tip of the inner rotor. 9. The method of claim 1 further comprising the step of modifying the outer rotor to control the duct volume. 10. The method of claim 9, wherein the modification comprises altering an outer wall of each outer rotor root. 11. The method of claim 10, wherein each outer wall is modified to vary in a radial direction as a function of depth and to be one of linear, concave, and convex. 12. The method of claim 9, wherein the modification comprises altering at least one side wall of each outer rotor root. 13. The method of claim 12, wherein each altered side wall is modified to vary in a circumferential direction as a function of depth and to be one of linear, concave, and convex. 14. A rotary chambered fluid energy-transfer device comprising: (a) a housing comprising: (1) a central portion having a bore formed therein; and(2) an end plate forming an arcuate inlet passage, the inlet passage comprising a radial height and a circumferential extent;(b) an outer rotor rotatable in the central portion bore, the outer rotor comprising a female gear profile formed in a radial portion defining a plurality of roots; and(c) an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor, forming a minimum radial distance between an outer rotor root and a corresponding inner rotor lobe defining a duct end face proximate the end plate, wherein the duct end face comprises a radial height substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage. 15. The fluid energy transfer device of claim 14, wherein the duct end face and the inlet passage are disposed at a substantially similar radial location. 16. The fluid energy transfer device of claim 15, wherein the leading edge substantially matches a shape of a corresponding aligned portion of the outer rotor at the duct end face to provide substantially instantaneous inlet passage opening. 17. The fluid energy transfer device of claim 15, wherein the inlet passage comprises a trailing edge that substantially matches a shape of a corresponding aligned portion of the outer rotor at the duct end face to provide substantially instantaneous inlet passage closing. 18. The fluid energy transfer device of claim 14, wherein the inlet passage radial height is substantially constant across the inlet passage circumferential extent. 19. The fluid energy transfer device of claim 14, wherein the inlet passage radial height varies across the inlet passage circumferential extent. 20. The fluid energy transfer device of claim 19, wherein an outer edge of the inlet passage is defined by a rotational path of a root of the outer rotor and an inner edge of the inlet passage is defined by a rotational path of a lobe tip of the inner rotor. 21. The fluid energy transfer device of claim 14, wherein the inlet passage circumferential extent extends in a range up to about 180 degrees of arc. 22. The fluid energy transfer device of claim 21, wherein the inlet passage circumferential extent extends in a range up to about a circumferential extent defined by adjacent roots of the outer rotor. 23. The fluid energy transfer device of claim 14, wherein an outer wall of each root varies in a radial direction as a function of depth. 24. The fluid energy transfer device of claim 23, wherein the outer wall is selected from the group consisting of linear, concave, and convex. 25. The fluid energy transfer device of claim 14, wherein at least one sidewall of each root varies in a circumferential direction as a function of depth. 26. The fluid energy transfer device of claim 25, wherein the at least one sidewall is selected from the group consisting of linear, concave, and convex. 27. The fluid energy transfer device of claim 14, wherein an outer wall of each root is substantially constant in a radial direction as a function of depth. 28. The fluid energy-transfer device of claim 14, wherein the device is adapted for use as a compressor. 29. The fluid energy-transfer device of claim 14, wherein the end plate further forms an outlet passage and the inlet passage and the outlet passage are configured for a predetermined compression of a fluid.
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