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Thermal Abatement Systems
| Content Provider | The Lens |
|---|---|
| Abstract | A thermal abatement system comprises an axial inlet, radial outlet supercharger. A main case comprises at least two rotor bores, an inlet plane and an outlet plane. The inlet plane is perpendicular to the outlet plane. An inlet wall comprises an inner surface. Two rotor mounting recesses are in the inner surface, and the inlet wall is parallel to the inlet plane. An outlet is in the outlet plane. An inlet is in the inlet plane. At least two rotors are configured to move air from the inlet to the outlet. The main case comprises at least two backflow ports. An intercooler is connected to receive air expelled from the supercharger, to cool the received air, and to expel the cooled air to the at least two back flow ports. |
| Related Links | https://www.lens.org/lens/patent/106-260-592-617-105/frontpage |
| Language | English |
| Publisher Date | 2017-06-15 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2017-02-28 |
| Applicant | Eaton Corp |
| Application No. | 201715444332 |
| Claim | 1 - 33 . (canceled) An axial inlet, radial outlet supercharger, comprising: a tubular housing, the tubular housing comprising: an inlet wall; an inlet through the inlet wall, the inlet configured to direct inlet air parallel to an inlet axis; an outlet configured to emit the inlet air perpendicular to the inlet axis; two rotor mounting recesses in an inner surface of the inlet wall, the inlet axis being between the two rotor mounting recesses; and at least two axial flow backflow ports in the inlet plane. The supercharger of claim 34 , wherein each of the at least two axial flow backflow ports is a slot having a profile matching a segment on an involute curve. The supercharger of claim 34 , wherein the tubular housing further comprises at least two radial flow backflow ports. The supercharger of claim 34 , wherein each of the at least two axial flow backflow ports and each of the at least two radial flow backflow ports is one of a rectangular slot, an oval hole, a circular hole, or a slot having four sides, each of the four sides being an arc of a circle. The supercharger of any one of claims 34 , further comprising a front plate separated from the inlet wall by a tuning distance. The supercharger of claim 38 , further comprising a pass-through in the front plate, the pass-through aligning with each of the at least two axial flow back flow ports. The supercharger of claim 39 , further comprising a recirculation conduit coupled to the pass-through. The supercharger of claim 38 , further comprising a floor between the inlet wall and the front plate, the floor fluidly separating the inlet from the at least two axial flow back flow ports. The supercharger of claim 41 , further comprising a support in the inlet, the support abutting the floor. The supercharger of claim 34 , wherein the axial flow back flow ports occupy a backflow port area A Port in the tubular housing determined by: where P 1 is an inlet pressure, P 2 is a maximum pressure ratio of the outlet, T 1 is an inlet temperature, T 2 is an outlet temperature, R is a gas coefficient, N RPM is a maximum speed in rotations per minute of rotors in the supercharger, V TransferVolume is a volume of air transferred, a is a speed of sound at a given inlet temperature T 1 , γ is a ratio of specific heat at a constant pressure and constant volume. The supercharger of claim 42 , wherein the axial flow back flow ports occupy an ideal port area A IPort in the range of one fourth to four times the backflow port area A Port . The supercharger of claim 43 , wherein the ideal port area A IPort is one half to two times the backflow port area A Port . The supercharger of claim 44 , wherein the ideal port area A IPort is two thirds of the backflow port area A Port . The supercharger of claim 43 , further comprising at least two radial flow backflow ports, the backflow port area A Port further comprising the area occupied by the at least two radial flow backflow ports. The supercharger of claim 43 , further comprising at least two radial flow backflow ports, wherein the ideal port area A IPort is further occupied by the radial flow backflow ports. The supercharger of any one of claims 34 , wherein, considering a center point of a first of the two rotor mounting recess as a central vertex on the inlet wall, an inlet area of one half of the inlet occupies 80-200 degrees of the inlet wall and a first of the at least two axial flow backflow ports occupies 10-40 degrees of the inlet wal The supercharger of claim 49 , wherein the first of the at least two axial flow backflow ports occupies 10-15 degrees of the inlet plane. The supercharger of claim 49 , wherein the first of the at least two axial flow backflow ports occupies 30-40 degrees of the inlet plane. The supercharger of claim 49 , wherein the inlet area is separated by 82-190 degrees from the first of the at least two axial flow backflow ports. The supercharger of claim 49 , wherein the inlet area is separated by 100-170 degrees from the first of the at least two axial flow backflow ports. The supercharger of claim 49 , wherein, considering a center point of a second of the two rotor mounting recess as a second vertex on the inlet wall, a second inlet area of the second half of the inlet occupies 80-200 degrees of the inlet wall about the second vertex, and a second of the at least two axial flow backflow ports occupies 10-40 degrees of the inlet wall about the second vertex. The supercharger of claim 34 , comprising: lobed rotors, each lobed rotor comprising a rotation axis parallel to the inlet axis, wherein the lobes sequentially mesh along the inlet axis when the rotors rotate, wherein respective lobes are twisted along the length of their respective rotor, and wherein the lobes are timed to fluidly seal the inlet from the outlet The supercharger of claim 55 , further comprising at least two radial flow back flow ports on either side of the outlet. The supercharger of claim 55 , wherein each lobed rotor rotates to move a lobe on the rotor, and the lobe rotates 210-280 degrees to complete an inlet phase, and the lobe rotates 0-50 degrees to complete a dwell phase, and the lobe rotates 15-70 degrees to complete a seal phase, and the lobe rotates 20-70 degrees to complete a backflow phase, and wherein the lobe rotates 200-220 degrees to complete an outlet phase. The supercharger of claim 55 , wherein each lobed rotor rotates to move a lobe on the rotor, and the lobe rotates 210-280 degrees to complete an inlet phase, and the lobe rotates 20-50 degrees to complete a dwell phase, and the lobe rotates 10-50 degrees to complete a seal phase, and the lobe rotates 20-80 degrees to complete a backflow phase, and wherein the lobe rotates 200-220 degrees to complete an outlet phase. The supercharger of claim 55 , wherein each of the at least two backflow ports are shaped to open in 10 to 15 degrees of lobe rotation. The supercharger of claim 55 , wherein each of the at least two backflow ports are shaped to open in 30 to 40 degrees of lobe rotation. The supercharger of claim 55 , wherein each of the at least two axial flow backflow ports are shaped to open in 10 to 40 degrees of lobe rotation. The supercharger of claim 55 , wherein the at least two axial flow backflow ports are sized to be fully blocked by respective lobes when the lobes rotate in front of respective ones of the at least two axial flow backflow ports. The supercharger of claim 55 , wherein the supercharger has a thermal limit of 150 degrees Celsius and an outlet pressure to inlet pressure pressure ratio of 4.4:1. The supercharger of claim 55 , wherein the respective lobes are twisted along the length of their respective rotor from 60-150 degrees. The supercharger of claim 55 , wherein the each one of the lobed rotors comprises three lobes, four lobes, or five lobes. The supercharger of claim 34 , wherein each lobe has a profile, and wherein each of the at least two backflow ports are shaped as segments of the lobe profile. The supercharger of claim 34 , further comprising: an intercooler comprising an inlet and an outlet, the intercooler connected to receive blown air from the outlet of the supercharger and connected to cool and expel the received air as backflow air; and conduits connecting the axial flow backflow ports of the supercharger to the outlet of the intercooler to receive the backflow air. The supercharger of claim 67 : wherein the first rotor comprises at least a first lobe and a second lobe, wherein the second rotor comprises at least a third lobe and a fourth lobe, wherein the at least two axial flow backflow ports comprise a first backflow port and a second backflow port, wherein the first backflow port is sealed by the first lobe when backflow air is exposed to the second backflow port and to a gap between the third lobe and the fourth lobe, and wherein the second backflow port is sealed by the fourth lobe when the backflow air is exposed to the first backflow port and to a second gap between the first lobe and the second lobe. The supercharger of claim 67 , wherein the supercharger further comprises at least two radial flow back flow ports in the outlet plane, and wherein the conduits further connect the radial flow back flow ports to the outlet of the intercooler. The supercharger of claim 67 , wherein the lobed rotors comprise a first rotatable rotor and a second rotatable rotor, wherein each of the first rotor and the second rotor comprise at least three lobes, wherein a respective gap is formed between each adjacent lobe, wherein, when a gap is aligned, the backflow ports are oriented to provide cooled air from the intercooler to an adjacent gap, and wherein the adjacent gap is sealed from the inlet and from the outlet when the cooled air is provided to the adjacent gap. An axial inlet, radial outlet supercharger, comprising: a tubular housing, the tubular housing comprising: an inlet wall; an inlet through the inlet wall, the inlet configured to direct inlet air parallel to an inlet axis; an outlet configured to emit the inlet air perpendicular to the inlet axis; two rotor mounting recesses in an inner surface of the inlet wall, the inlet axis being between the two rotor mounting recesses; at least two backflow ports in the tubular housing; an intercooler comprising an inlet and an outlet, the intercooler connected to receive blown air from the outlet of the supercharger and connected to cool and expel the received air as backflow air; and conduits connecting the at least two backflow ports of the supercharger to the outlet of the intercooler to receive the backflow air. The axial inlet, radial outlet supercharger of claim 71 , further comprising lobed rotors, each lobed rotor comprising a rotation axis parallel to the inlet axis, wherein the lobes sequentially mesh along the inlet axis when the rotors rotate, wherein respective lobes are twisted along the length of their respective rotor, and wherein the lobes are timed to fluidly seal the inlet from the outlet. The axial inlet, radial outlet supercharger of claim 72 , wherein the lobed rotors comprise a first rotatable rotor and a second rotatable rotor, wherein each of the first rotor and the second rotor comprise at least three lobes, wherein a respective gap is formed between each adjacent lobe, wherein, when a gap is aligned, the backflow ports are oriented to provide cooled air from the intercooler to an adjacent gap, and wherein the adjacent gap is sealed from the inlet and from the outlet when the cooled air is provided to the adjacent gap. The axial inlet, radial outlet supercharger of claim 72 , wherein the first rotor comprises at least a first lobe and a second lobe, wherein the second rotor comprises at least a third lobe and a fourth lobe, wherein the at least two backflow ports comprise a first backflow port and a second backflow port, wherein the first backflow port is sealed by the first lobe when backflow air is exposed to the second backflow port and to a gap between the third lobe and the fourth lobe, and wherein the second backflow port is sealed by the fourth lobe when the backflow air is exposed to the first backflow port and to a second gap between the first lobe and the second lobe. The supercharger of claim 71 , wherein the outlet is in an outlet wall, wherein the at least two backflow ports comprise radial flow back flow ports in the outlet wall, and wherein the conduits further connect the radial flow back flow ports to the outlet of the intercooler. The supercharger of claim 71 , wherein the at least two backflow ports comprise axial flow back flow ports in the inlet wall, and wherein the conduits further connect the axial flow back flow ports to the outlet of the intercooler. The supercharger of claim 71 , wherein the outlet is in an outlet wall, and wherein the at least two backflow ports comprise radial flow back flow ports in the outlet wall and axial flow back flow ports in the inlet wall, and wherein the conduits further connect the radial flow back flow ports and the axial flow backflow ports to the outlet of the intercooler. |
| CPC Classification | SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF INTERNAL-COMBUSTION PISTON ENGINES;COMBUSTION ENGINES IN GENERAL Climate Change Mitigation Technologies Related To Transportation ROTARY-PISTON; OR OSCILLATING-PISTON; POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ;ROTARY-PISTON; OR OSCILLATING-PISTON; POSITIVE-DISPLACEMENT PUMPS |
| Extended Family | 120-726-176-168-784 106-260-592-617-105 011-813-784-105-019 055-008-154-590-35X 024-774-818-723-847 019-006-323-982-772 065-179-272-748-348 021-336-914-004-106 108-671-558-157-36X 028-656-018-620-733 070-148-263-266-581 148-866-970-431-691 |
| Patent ID | 20170167362 |
| Inventor/Author | Mahalatkar Kartikeya K Swartzlander Matthew G Patil Sheetalkumar Froehlich Michael J Kulkarni Gopal Kishanrao |
| IPC | F02B29/04 F02B33/38 F02M26/08 F02M26/41 F04C18/12 |
| Status | Active |
| Owner | Eaton Intelligent Power Limited Eaton Corporation |
| Simple Family | 065-179-272-748-348 106-260-592-617-105 011-813-784-105-019 070-148-263-266-581 |
| CPC (with Group) | F02M26/08 F02B29/0406 F02B33/38 F02M26/41 Y02T10/12 F04C18/126 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent Application Publication |
