A rotary machine (10) comprises an inner housing (12) having valving means (14) which includes a shaft (15) for directing working fluid through the machine (10) and, an outer housing (16) within which the inner housing resides. A working chamber (18) is defined between the inner and outer housings (
A rotary machine (10) comprises an inner housing (12) having valving means (14) which includes a shaft (15) for directing working fluid through the machine (10) and, an outer housing (16) within which the inner housing resides. A working chamber (18) is defined between the inner and outer housings (12 and 16). A plurality of gates (20) are supported by the inner housing and are swingable along their respective longitudinal axis between a sealing position in which the gates form a seal against surface (22) of outer housing (16) and a retracted position in which the gates (20) lie substantially against surface (24) of the housing (12).
대표청구항▼
1. A rotary machine including at least:an inner housing; an outer housing in which the inner housing resides, one of the inner and outer housings being rotatable relative to another of the inner and outer housings, with a working chamber through which a working fluid flows being defined between the
1. A rotary machine including at least:an inner housing; an outer housing in which the inner housing resides, one of the inner and outer housings being rotatable relative to another of the inner and outer housings, with a working chamber through which a working fluid flows being defined between the inner housing and the outer housing; a plurality of gates supported by one of the inner housing and the outer housing, wherein the housing supporting the gates constitutes a supporting housing and the housing not supporting the gates constitutes a non-supporting housing, each gates swingable along its respective longitudinal axis between a sealing position in which the gates form a seal against a surface of non-supporting housing and a retracted position in which the gates lie substantially against a surface of the supporting housing facing the working chamber, said supporting housing provided with a plurality of inlet ports through which the working fluid flows into the working chamber; a plurality of lobes supported by the non-supporting housing and which form a seal against a facing surface of the supporting housing thereby dividing the working chamber into a plurality of sub-chambers, each lobe defining an exhaust port for exhausting the working fluid from an adjacent sub-chamber wherein each of the exhaust ports comprising an axially extending bore formed through each of the lobes and a plurality of feed holes that passes through each of the lobes for communicating the working fluid between the working chamber and the bore; and a valve operatively associated with said supporting housing that directs said working fluid into the working chamber via the support housing, the valve comprising a shaft extending coaxially into and rotatable relative to the supporting housing, the shaft having an axial passage in fluid communication with a supply of said working fluid and a plurality of radially extending holes providing fluid communication between said axial passage and the inlet ports in the supporting housing for a predetermined period of time per revolution of the shaft relative to the supporting housing. 2. The rotary machine according to claim 1, wherein the supporting housing is further provided with a plurality of sockets extending longitudinally along its surface facing the working chamber and each gate is pivotally retained and supported in a respective socket to facilitate the swinging motion of the gates.3. The rotary machine according to claim 2, wherein the sockets and the gates are complementarily shaped so that when the gates are in the retracted position their radially outermost surface lies substantially flush with, or below, the surface of the supporting housing facing the working chamber.4. The rotary machine according to claim 3, wherein each socket and each gate is provided with a first set of respective stop surfaces that come into mutual abutment when the gates swing to the sealing position from the retracted position.5. The rotary machine according to claim 4, wherein each socket and gate is provided with a second set of respective stop surfaces spaced from the first set of stop surfaces have come into mutual abutment when the gates swing to the sealing position from the retracted position.6. The rotary machine according to claim 5, wherein said first and second sets of respective stop surfaces are positioned so as to come into respective mutual contacts substantially simultaneously.7. The rotary machine according to claim 6, wherein said lobes form a seal against the surface of the supporting housing facing the working chamber to divide the working chamber into a plurality of sub-chambers, and wherein said lobes force said gates toward said retracted position upon engagement with said gates.8. The machine according to claim 6, wherein the supporting housing is provided with a plurality of inlet ports providing fluid communication between the valve and the working chamber.9. The machine according to claim 8, wherein each inlet port has an opening into said working chamber and said gates are arranged to overlie said opening when in the retracted position wherein fluid passing through the inlet port urges said gate toward said sealing position.10. A rotary machine comprising:an inner housing; an outer housing in which the inner housing resides, one of the inner and outer housings being rotatable relative to another of the inner and outer housings, with a working chamber through which a working fluid flows being defined between the inner housing and the outer housing; a plurality of gates supported by one of the inner housing and the outer housing, wherein the housing supporting the gates constitutes a supporting housing and the housing not supporting the gates constitutes a non-supporting housing, each gate swingable along its respective longitudinal axis between a sealing position in which the gates form a seal against a surface of the non-supporting housing, and a retracted position in which the gates lie substantially against a surface of the supporting housing facing the working chamber; a plurality of lobes supported by the non-supporting housing and which form a seal against a facing surface of the supporting housing thereby dividing the working chamber into a plurality of sub-chambers, each lobe defining an exhaust port for exhausting the working fluid from an adjacent sub-chamber wherein each of the exhaust ports comprising an axially extending bore formed through each of the lobes and a plurality of feed holes that passes through each of the lobes for communicating the working fluid between the working chamber and the bore; and valve means operatively associated with said supporting housing for directing working fluid into said working chamber via said support housing, said valve means comprising a member located co-axially with and rotatably relative to said supporting housing, said member having a passage or channel in communication with a supply of working fluid and a plurality of holes providing fluid communication between said passage or channel and said working chamber for a predetermined period of time per revolution of said supporting housing relative to said valve means. 11. The rotary machine according to claim 10, wherein the supporting housing is provided with a plurality of sockets extending longitudinally along its surface facing the working chamber and each gate is pivotally retained and supported in a respective socket to facilitate the swinging motion of the gates.12. The rotary machine according to claim 11, wherein the sockets and the gates are complementarily shaped so that when the gates are in the retracted position their radially outermost surface lies substantially flush with, or below, the surface of the supporting housing facing the working chamber.13. The rotary machine according to claim 12, wherein each socket and each gate is provided with a first set of respective stop surfaces that come into mutual abutment when the gates swing to the sealing position from the retracted position.14. The rotary machine according to claim 13, wherein each socket and gate is provided with a second set of respective stop surfaces spaced from the first set of stop surfaces have come into mutual abutment when the gates swing to the sealing position from the retracted position.15. The rotary machine according to claim 14, wherein said first and second sets of respective stop surfaces are positioned so as to come into respective mutual contact substantially simultaneously.16. The rotary machine according to claim 15, wherein the supporting housing is provided with a plurality of inlet ports providing fluid communication between said passage or channel and the working chamber.17. The rotary machine according to claim 16, wherein each inlet port has an opening into said working chamber and said gates are arranged to overlie said opening when in the retracted position wherein fluid passing through the inlet port urges said gate toward said sealing position.18. The rotary machine according to claim 17, wherein said lobes form a seal against the surface of the supporting housing facing the working chamber to divide the working chamber into a plurality of sub-chambers, and wherein said lobes force said gates toward said retracted position upon engagement with said gates.19. The rotary machine according to claim 10 wherein said member is a shaft which extends co-axially through said supporting housing and said passage extends axially into said shaft.20. A rotary machine comprising:an inner housing; an outer housing in which the inner housing resides, one of the inner and outer housings being rotatable relative to another of the inner and outer housings, with a working chamber through which a working fluid flows being defined between the inner housing and the outer housing; a plurality of gates supported by one of the inner housing and the outer housing, wherein the housing supporting the gates constitutes a supporting housing and the housing not supporting the gates constitutes a non-supporting housing, each gate swingable along its respective longitudinal axis between a sealing position in which the gates form a seal against a surface of the non-supporting housing and a retracted position in which the gates lie substantially against a surface of the supporting housing facing the working chamber; and a valve operatively associated with said supporting housing that directs said working fluid into the working chamber via the support housing, said valve providing fluid communication between a supply of said working fluid and said working chamber for a predetermined period of time per revolution of said supporting housing relative to said valve; said supporting housing being provided with a plurality of inlet ports providing fluid communication between said valve and said working chamber, wherein each inlet port has an opening into said working chamber and said gates are arranged to overlie said opening when in the retracted position wherein fluid passing through said inlet port urges said gate toward said sealing position, a plurality of lobes supported by the non-supporting housing and which form a seal against a facing surface of the supporting housing thereby dividing the working chamber into a plurality of sub-chambers, each lobe defining an exhaust port for exhausting the working fluid from an adjacent sub-chamber wherein each of the exhaust ports comprising an axially extending bore formed through each of the lobes and a plurality of feed holes that passes through each of the lobes for communicating the working fluid between the working chamber and the bore, the valve comprising a shaft extending coaxially into and rotatable relative to the supporting housing, the shaft having an axial passage in fluid communication with a supply of said working fluid and a plurality of radially extending holes providing fluid communication between said axial passage and the inlet ports in the supporting housing for a predetermined period of time per revolution of the shaft relative to the supporting housing. 21. A rotary machine comprising:a supporting housing; a non-supporting housing in which the supporting housing resides, one of the supporting and the non-supporting housings being rotatable relative to another and concentric with each other, with a working chamber through which a working fluid flows being defined between the supporting housing and the non-supporting housing; a plurality of gates supported by the supporting housing, each gate swingable along its respective longitudinal axis between a sealing position in which the gates form a seal against a surface of the non-supporting housing and a retracted position in which the gates are swung about their longitudinal axes to lie substantially against a surface of the supporting housing facing the working chamber, said supporting housing provided with a plurality of inlet ports through which the working fluid flows into the working chamber; a plurality of lobes supported by the non-supporting housing and which form a seal against a facing surface of the supporting housing, thereby dividing the working chamber into a plurality of sub-chambers, each lobe defining an exhaust port for exhausting the working fluid from an adjacent sub-chamber wherein each of the exhaust ports comprising an axially extending bore formed through each of the lobes and a plurality of feed holes that passes through each of the lobes for communicating the working fluid between the working chamber and the bore; and a valve operatively associated with the supporting housing for directing working fluid into the sub-chambers via the support housing, the valve comprising a member located coaxially with and rotatable relative to the supporting housing, the member having a passage or channel in communication with a supply of working fluid and a plurality of holes providing fluid communication between the passage or channel and the inlet ports for a predetermined period of time per revolution of the supporting housing relative to the valve. 22. The machine according to claim 21, wherein the supporting housing is provided with a plurality of sockets extending longitudinally along its surface facing the working chamber and each gate is pivotally retained and supported in a respective socket to facilitate the swinging motion of the gates.23. The machine according to claim 22, wherein the sockets and the gates are complementarily shaped so that when the gates are in the retracted position their radially outermost surface lies substantially flush with, or below, the surface of the supporting housing facing the working chamber.24. The machine according to claim 23, wherein each socket and each gate is provided with a first set of respective stop surfaces that come into mutual abutment when the gates swing to the sealing position from the retracted position.25. The machine according to claim 24, wherein each socket and each gate is provided with a second set of respective stop surfaces spaced from the first set of stop surfaces that come into mutual abutment when the gates swing to the sealing position from the retracted position.26. The machine according to claim 25, wherein the first and the second sets of respective stop surfaces are positioned so as to come into respective mutual contact substantially simultaneously.27. The machine according to claim 21, wherein each inlet port has an opening into said working chamber and said gates are arranged to overlie said opening when in the retracted position wherein fluid passing through the inlet port urges said gate toward said sealing position.28. The machine according to claim 21, wherein the lobes are configured to force the gates toward the retracted position upon engagement of the lobes with the gates.29. The machine according to claim 21, wherein the valve is provided with an adjuster to facilitate adjustment of the flow of the working fluid into the working chamber.30. The machine according to claim 29, wherein said member comprises a shaft that extends coaxially through the supporting housing and the passage extends axially into the shaft.31. The machine according to claim 30, wherein the adjuster comprises a sleeve located coaxially with the shaft and movable relative to the shaft, the sleeve provided with one or more apertures extending radially therethrough, and a device for effecting movement of the sleeve relative to the shaft to allow variation in overlap or alignment of the apertures and the holes to thereby control the flow of the working fluid from the supply to the working chamber.32. The machine according to claim 31, wherein the device for effecting movement comprises a coupling acting between the non-supporting housing, a connector for connecting the rotary machine to a supporting apparatus and one of the shaft and the sleeve, whereby a torque differential between the non-supporting housing and the supporting apparatus is transmitted by the coupling to act between the sleeve and the shaft to effect the movement of the sleeve relative to the shaft.33. The machine according to claim 21, wherein the member comprises a plate disposed coaxially of the non-supporting housing, the channel provided on a side of the plate distant from the supporting housing and the holes comprise slots cut in an axial direction through the plate for providing fluid communication between the channel and the working chamber for a predetermined period of time per revolution of the plate relative to the supporting housing.
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Grupping Arnold W. J.,NLX, Downhole roller vane motor and roller vane pump.
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