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US 7,029,241 B2Granted
Circumferential piston compressor/pump/engine (CPC/CPP/CPE); circumferential piston machines
OwnerPatrick Wade Roussetinventor
Life of this patent
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Abstract
A rotary piston machine includes a first spheroidal element including pistons and/or cylinders and a second spheroidal element including pistons and/or cylinders, wherein the first element can move relative to the second element. The machine can be used as part of a pump, compressor, or engine.
Claims32
A pump apparatus comprising:
- a) a first housing section having a concave surface portion;
- b) a second housing section having a concave surface portion;
- c) a first shaft for rotating with the first housing section about a first axis;
- d) a second shaft for rotating the second housing section about a second axis that forms an obtuse angle with the first axis;
- e) a spherically shaped bearing member that engages the respective concave surface portion of the first and second housing sections, said spherically shaped bearing member being intersected by both axes and defining a center of rotation for both the first and the second housing sections;
- f) a plurality of valved pistons positioned circumferentially around said spherically shaped bearing member, each piston having a first portion on the first housing section and a second portion on the second housing section, the pistons interconnecting the first and second housing sections so that when one housing section is rotated, the other housing section rotates with it;
- g) means for rotating one of the shafts;
- and
- h) a fluid flow path that transmits fluid through the housing sections using the pistons, wherein each piston reciprocates to pump fluid under pressure as the housing sections rotate.
6 more elements
A pump apparatus comprising:
- a) a first housing section having a concave surface portion;
- b) a second housing section having a concave surface portion;
- c) means for supporting the housing sections so that they rotate about first and second respective axes that form an obtuse angle;
- and
- d) means for rotating the housing sections, wherein they are connected together so that they both rotate at a common revolution per minute;
- e) a spherically shaped bearing member that engages the respective concave surface portion of the first and second housing sections, said spherically shaped bearing member being intersected by both axes and defining a center of rotation for both the first and the second housing sections;
- f) a plurality of valved pistons positioned circumferentially around said spherically shaped bearing member, each piston having an upper position on the first housing section and a lower portion on the lower housing section, the pistons interconnecting the first and second housing sections so that when one housing section is rotated, the other housing section rotates with it;
- and
- g) a fluid flow path that transmits fluid through the housing sections using the pistons, wherein each piston reciprocates to pump fluid under pressure as the housing sections rotate.
6 more elements
A pump apparatus comprising:
- a) a first housing section having a concave surface portion;
- b) a second housing section having a concave surface portion;
- c) a first shaft for rotating the first housing section about a first axis;
- d) a second shaft for rotating the second housing section about a second axis that forms an obtuse angle with the first axis;
- e) a spherically shaped bearing member that engages the respective concave surface portion of the first and second housing sections, said spherically shaped bearing member being intersected by both axes and defining a center of rotation for both the first and the second housing sections;
- f) means for pumping fluid along a fluid flow path through said housing sections as they rotate about said axes;
- and
- g) pistons interconnecting the first and second housing sections so that when one housing section is rotated, the other housing section rotates with it, said fluid flow path transmitting fluid through the housing sections using the pistons, wherein each piston reciprocates to pump fluid under pressure as the housing sections rotate.
5 more elements
A rotary piston apparatus comprising:
- a) an upper machine housing section having a plurality of circumferentially spaced piston sections;
- b) a lower machine housing section having a plurality of circumferentially spaced piston sections;
- c) a plurality of pistons positioned circumferentially on the housing sections;
- d) a support for holding the housing sections in positions that enable them to interface so that the pistons expand and compress as the housing sections rotate, wherein the upper and lower housing sections are rotatable relative to one another upon axes of rotation that form an obtuse angle;
- e) a fluid inlet passageway on the upper housing section;
- and
- f) a fluid discharge passageway on the lower housing section, wherein each piston has a valve that controls fluid flow through the piston, and the periphery of one housing section approaches and then spaces away from the periphery of the other housing section and along a circumferential path so that a piston compresses and then expands just before a piston next to it on one side of it and just before a piston on the other side of it.
4 more elements
Dependencies are inferred from the claim text.