1. A compressor housing (410, 510, 610, 700, 800, 900) for a turbocharger (400, 500, 600) having an impeller (405, 505, 605) mounted for rotation about an axis and shaped for drawing air in axially and discharging air radially, the housing (410, 510, 610, 700, 800, 900) comprising:
an impeller chamber (403, 503, 603) rotatably housing the impeller (405, 505, 605);
a scroll (420, 520, 620, 720, 820, 920); and
a diffuser (450, 550, 650, 750, 850, 950) having an inlet (453, 553, 653) in proximity to the impeller (405, 505, 605) for receiving air discharged radially by said impeller and an outlet (458, 558, 658) connected to the scroll (420, 520, 620, 720, 820, 920),
wherein the impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) are in fluid communication, and wherein the diffuser (450, 550, 650, 750, 850, 950) has a bend (455).
2. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the inlet (453, 553, 653) has a bend (455).
3. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the diffuser (750, 850) is defined by a single radius of curvature (RC).
4. A compressor 410, 510, 610, 700, 800, 900) for a turbocharger (400, 500, 600) having an impeller (405, 505, 605) mounted for rotation about an axis and shaped for drawing air in axially and discharging air radially, the housing (410, 510, 610, 700, 800, 900) comprising:
an impeller chamber (403, 503, 603) rotatably housing the impeller (405, 505, 605);
a scroll (420, 520, 620, 720, 820, 920); and
a diffuser (450, 550, 650, 750, 850, 950) having an inlet (453, 553, 653) in proximity to the impeller (405, 505, 605) for receiving air discharged radially by said impeller and an outlet (458, 558, 658) connected to the scroll (420, 520, 620, 720, 820, 920),
wherein the impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) are in fluid communication, and wherein the diffuser (450, 550, 650, 750, 850, 950) has a bend (455)
wherein the diffuser (450, 950) is defined by a plurality of radii of curvature (RC1, RC2).
5. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the diffuser (450, 550, 650, 750, 850, 950) lies in a diffuser plane, and wherein the diffuser plane intersects the scroll (720, 820).
6. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the diffuser (450, 550, 650, 750, 850, 950) lies in a diffuser plane, and wherein the diffuser plane bisects the scroll.
7. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the diffuser (450, 550, 650, 750, 850, 950) lies in a diffuser plane, and wherein the diffuser plane is tangential to the scroll (920).
8. The housing (410, 510, 610, 700, 800, 900) of claim 1, wherein the diffuser is defined by a single radius of curvature (RC), and wherein the single radius of curvature (RC) is between 1 to 1000 inches.
9. A turbocharger (400, 500, 600) comprising:
an impeller (405, 505, 605) mounted for rotation about an axis and shaped for drawing air in axially and discharging air radially; and
a housing (410, 510, 610, 700, 800, 900) defining an impeller chamber (403, 503, 603), a diffuser (450, 550, 650, 750, 850, 950) and a scroll (420, 520, 620, 720, 820, 920), wherein the impeller (405, 505, 605) is rotatably mounted in the housing (410, 510, 610, 700, 800, 900), wherein the impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) are in fluid communication, and wherein the diffuser (450, 550, 650, 750, 850, 950) receives air discharged radially by said impeller and extends in a radial direction that is non-orthogonal to a center line of the turbocharger (400, 500, 600).
10. The turbocharger (400, 500, 600) of claim 8, wherein the diffuser (550, 650) has a linear shape.
11. The turbocharger (400, 500, 600) of claim 8, further comprising one or more vanes (575) positioned in the diffuser (450, 550, 650, 750, 850, 950).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An inflatable product, comprising:
an inflatable chamber; and
a pump apparatus, comprising:
an air pump providing suction at an air intake;
a first hole and a second hole, each in fluid communication with the inflatable chamber;
a first pathway arranged to cause air to be conveyed in sequence from outside the inflatable chamber through the air intake to the first hole to inside the inflatable chamber when the inflatable chamber is being inflated; and
a second pathway arranged to cause air to be conveyed in sequence from inside the inflatable chamber through the second hole to the air intake to outside the inflatable chamber when the inflatable chamber is being deflated;
wherein the first hole is open and the second hole is closed when the inflatable chamber is being inflated.
2. The inflatable product of claim 1, wherein the pump apparatus further comprises a first vent and a second vent in fluid communication with ambient air.
3. The inflatable product of claim 2, wherein the first pathway is arranged to cause air to be conveyed in sequence from outside the inflatable chamber through the first vent to the air intake to the first hole when the inflatable chamber is being inflated, and the second pathway is arranged to cause air to be conveyed in sequence from inside the inflatable chamber through the second hole to the air intake to the second vent when the inflatable chamber is being deflated.
4. The inflatable product of claim 3, wherein the first vent is open and the second vent is closed when the inflatable chamber is being inflated.
5. The inflatable product of claim 4, wherein the second hole and second vent are open and the first hole and first vent are closed when the inflatable chamber is being deflated.
6. The inflatable product of claim 1, wherein the second hole is open and the first hole is closed when the inflatable chamber is being deflated.
7. An inflatable product, comprising:
an inflatable chamber; and
a pump apparatus comprising:
a pump seat having a first hole and a second hole, each in fluid communication with the inflatable chamber; and
an air pump providing suction at an air intake, the air pump disposed in the pump seat;
wherein the pump apparatus is arranged such that the air pump conveys air in sequence from outside the inflatable chamber through the air intake to the first hole to inflate the inflatable chamber, and conveys air in sequence from inside the inflatable chamber through the second hole to the air intake to outside the inflatable chamber to deflate the inflatable chamber.
8. The inflatable product of claim 7, wherein the first hole is open and the second hole is closed when the inflatable chamber is being inflated.
9. The inflatable product of claim 8, wherein the second hole is open and the first hole is closed when the inflatable chamber is being deflated.
10. The inflatable product of claim 9, wherein the pump apparatus further comprises a first vent and a second vent in fluid communication with ambient air.
11. The inflatable product of claim 10, wherein the pump apparatus is arranged such that the air pump conveys air in sequence from outside the inflatable chamber through the first vent to the air intake to the first hole to inflate the inflatable chamber, and conveys air in sequence from inside the inflatable chamber through the second hole to the air intake to the second vent to deflate the inflatable chamber.
12. An inflatable product, comprising:
an inflatable chamber; and
a pump apparatus, comprising:
a first vent, a second vent, a first hole, and a second hole; and
an air pump mounted providing suction at an air intake;
wherein the inflatable chamber and pump apparatus are arranged such that on activation of the air pump to inflate the inflatable chamber, air is drawn in sequence from outside the inflatable chamber through the first vent to the air intake to the first hole and into the inflatable chamber, and on activation of the air pump to deflate the inflatable chamber, air is drawn in sequence from inside the inflatable chamber through the second hole to the air intake to the second vent and to outside the inflatable chamber,
wherein on activation of the air pump to inflate the inflatable chamber, the second vent and second hole are blocked.
13. An inflatable product recited in claim 12 wherein on activation of the air pump to deflate the chamber, the first vent and first hole are blocked.