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公开(公告)号：WO1982002076A1
公开(公告)日：1982-06-24
申请号：PCT/US1981001632
申请日：1981-12-08
Applicant: BOWLES FLUIDICS CORP
Inventor： BOWLES FLUIDICS CORP , STOUFFER RONALD D , MORRIS JOSEPH W
IPC: F15C03/00
CPC classification number: B60H1/00678 , B60S1/54 , F15C7/00 , F24F11/89 , Y10T137/2202 , Y10T137/2256 , Y10T137/87812
Abstract: A fluid flow control element is constituted by a fluidic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least one control fluid passageway, and the flow of fluid to the outlet passages is controlled by at least one pivoted valve or flap element pivoted between two positions for controlling flow fluid from the fluid inlet to a selected one of a pair of fluid flow passageways or outlets. In the preferred embodiment the fluid flow inlet and outlet and the interaction chamber are such that the fluid pressure in the chamber is always above any pressure in the load passageways and fluid from the fluid flow inlet flows out from the chamber through the control passage. The pivoted valve or flap element, in the preferred embodiment is flat so that it is balanced relative to gravity as well as aerodynamically, so that it will not change position due to back pressures as when outlet passages or receivers are partially or completely blocked and does not cause any torque on the valve element about said pivot and hence will remain in the control position despite severe back loading. The invention is described in relation to a low pressure system, such as automobile air flow systems wherein a number of the unique aspects of the invention are utilized.
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Patent Agency Ranking
公开(公告)号：EP0066616A4
公开(公告)日：1983-04-18
申请号：EP82900414
申请日：1981-12-08
Applicant: BOWLES FLUIDICS CORP
Inventor： STOUFFER RONALD D , MORRIS JOSEPH W
CPC classification number: B60H1/00678 , B60S1/54 , F15C7/00 , F24F11/89 , Y10T137/2202 , Y10T137/2256 , Y10T137/87812
Abstract: A fluid flow control element is constituted by a fluidic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least one control fluid passageway, and the flow of fluid to the outlet passages is controlled by at least one pivoted valve or flap element pivoted between two positions for controlling flow fluid from the fluid inlet to a selected one of a pair of fluid flow passageways or outlets. In the preferred embodiment the fluid flow inlet and outlet and the interaction chamber are such that the fluid pressure in the chamber is always above any pressure in the load passageways and fluid from the fluid flow inlet flows out from the chamber through the control passage. The pivoted valve or flap element, in the preferred embodiment is flat so that it is balanced relative to gravity as well as aerodynamically, so that it will not change position due to back pressures as when outlet passages or receivers are partially or completely blocked and does not cause any torque on the valve element about said pivot and hence will remain in the control position despite severe back loading. The invention is described in relation to a low pressure system, such as automobile air flow systems wherein a number of the unique aspects of the invention are utilized.
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公开(公告)号：CA1170995A
公开(公告)日：1984-07-17
申请号：CA391726
申请日：1981-12-08
Applicant: BOWLES FLUIDICS CORP
Inventor： STOUFFER RONALD D , MORRIS JOSEPH W
Abstract: "FLUID FLOW CONTROL ELEMENT AND METHOD" A fluid flow control element is constituted by a fluldic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least one control fluid passageway, and the flow of fluid to the outlet passages is controlled by at least one pivoted valve or flap element pivoted between two positions for controlling flow fluid from the fluid inlet to a selected one of a pair of fluid flow passageways or outlets. In the preferred embodiment the fluid flow inlet and outlet and the interaction chamber are such that the fluid pressure in the chamber is always above any pressure in the load passageways and fluid from the fluid flow inlet flows out from the chamber through the control passage. The pivoted valve or flap element, in the preferred embodiment is flat so that it is balanced relative to gravity as well as aerodynamically, so that it will not change position due to back pressures as when outlet passages or receivers are partially or completely blocked and does not cause any torque on the valve element about said pivot and hence will remain in the control position despite severe back loading. The invention is described in relation to a low pressure system, such as automobile air flow systems wherein a number of the unique aspects of the invention are utilized.
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公开(公告)号：DE3171750D1
公开(公告)日：1985-09-12
申请号：DE3171750
申请日：1981-12-08
Applicant: BOWLES FLUIDICS CORP
Inventor： STOUFFER RONALD D , MORRIS JOSEPH W
IPC: F15C3/00
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公开(公告)号：BR8108912A
公开(公告)日：1982-10-26
申请号：BR8108912
申请日：1981-12-08
Applicant: BOWLES FLUIDICS CORP
Inventor： STOUFFER RONALD DENTON , MORRIS JOSEPH W
Abstract: A fluid flow control element is constituted by a fluidic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least one control fluid passageway, and the flow of fluid to the outlet passages is controlled by at least one pivoted valve or flap element pivoted between two positions for controlling flow fluid from the fluid inlet to a selected one of a pair of fluid flow passageways or outlets. In the preferred embodiment the fluid flow inlet and outlet and the interaction chamber are such that the fluid pressure in the chamber is always above any pressure in the load passageways and fluid from the fluid flow inlet flows out from the chamber through the control passage. The pivoted valve or flap element, in the preferred embodiment is flat so that it is balanced relative to gravity as well as aerodynamically, so that it will not change position due to back pressures as when outlet passages or receivers are partially or completely blocked and does not cause any torque on the valve element about said pivot and hence will remain in the control position despite severe back loading. The invention is described in relation to a low pressure system, such as automobile air flow systems wherein a number of the unique aspects of the invention are utilized.
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公开(公告)号：CA1187003A
公开(公告)日：1985-05-14
申请号：CA404354
申请日：1982-06-02
Applicant: BOWLES FLUIDICS CORP
Inventor： MORRIS JOSEPH W , MELBOURNE THOMAS A
Abstract: "IMPROVEMENTS IN OSCILLATING REED AND METHOD" There is disclosed improvements in oscillating reeds particularly for use in generating a sweeping or oscillating air flow pattern. The oscillating reeds of this invention are constituted by a plurality of spaced apart resilient reed elements which, preferably, are made from graphite fibers bonded together by an epoxy resin matrix reinforced by a scrim of fiber glass. To minimize the effect of torsion and/or forces which can cause the reed elements to buckle and hence create noise, a plurality of undulations are formed in the graphite strip. Thus, the oscillating reed according to the present invention offers the following four major advantages, (1) reduction in noise from buckling, (2) amplitude modulation, i.e. oscillation amplitude insensitivity to wide ranges of flow rates (3) easier starting of oscillation, and, (4) improved fatigue strength.
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