James Putt - Doylestown OH Michael M. Kugelman - Akron OH
Assignee:
Goodrich Corporation - Charlotte NC
International Classification:
F04B 1700
US Classification:
417386, 417385, 417225, 417401, 92 5 R, 244134 A
Abstract:
An aircraft fluid delivery device ( ) including a piston assembly ( ), a pilot assembly ( ), and a control assembly ( ). The control assembly ( ) includes non-contact proximity sensors (S , S ) that sense the position of the piston ( ) and a controller ( ) that controls the pilot assembly ( ), and thus the piston assembly ( ), based on information received from the sensors (S ,S ). Specifically, the controller ( ) energizes a solenoid ( ) to cause fluid to flow through the pilot assembly ( ) into a large portion of the piston chamber ( ) during the compression stroke of the piston ( ). When the solenoid ( ) is deenergized during the return stroke of the piston ( ), or when the delivery device is electrically turned off, an ejector ( ) in the pilot assembly ( ) generates a vacuum on the pressure side of the wide portion of the piston chamber ( ).
Cascaded Pneumatic Impulse Separation System And Valves Therefor
Robert N. Hohenshil - Doylestown OH James C. Putt - Doylestown OH Richard L. Rauckhorst - North Canton OH David M. Ronyak - Copley OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
F16K 3140 B64D 1516
US Classification:
251 3005
Abstract:
A rapid acting valve capable of delivering a high pressure impulse of compressible fluid has a pilot section, and an output section. The output section is pressurized to approximately equilibrium with the inlet pressure during the load portion of the operating cycle. During the dump portion of the operating cycle, the pilot section and output section cooperate to provide extremely rapid full opening of the output section to release fluid under pressure from an accumulator through an output section piston seat. The valve is particularly suitable for use in combination with pneumatic impulse separation systems such as those employed for deicing aircraft surfaces. A plurality of valves may be arranged in series such that dumping of the first tier valve initiates dumping of one or more second tier valves in the series each of which in turn initiates dumping of one or more third tier valves, and so forth until all valves in the series have been actuated, each by its preceding valve.
James A. Briscoe - Doylestown OH James C. Putt - Doylestown OH Ronald W. Phillips - Mogadore OH Gary V. Tenison - Massillon OH Kevin L. Leffel - Akron OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
B64D 1518
US Classification:
244134A
Abstract:
A de-icer for de-icing those ice accreting surfaces of a skin formed of a material having a substantially elevated modulus, wherein the de-icer is positioned between a support surface and a surface of the skin obverse to the ice accreting surface and inflated to produce a deformation in the skin sufficient to detach and dislodge accumulations of ice on the ice accreting surface but insufficient to exceed an endurance limit for the material from which the skin is formed. The invention finds use in de-icing aircraft surfaces such as wings, tail surfaces, propellers, rotors such as rotating wings, tail rotors and nose cones.
James A. Briscoe - Doylestown OH James C. Putt - Doylestown OH Ronald W. Phillips - Mogadore OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
F04B 1700
US Classification:
91346
Abstract:
An airfoil deicer and method for deicing an airfoil wherein the deicer has an outer skin having an elevated modulus of elasticity and a means for introducing a small deflection into the outer skin thereby creating substantial chord-wise tension in the outer skin, the deflection being induced in less than 0. 250 seconds. In the method of deicing, the deflection is induced periodically and being completed within a time span of about 0. 250 seconds to remove accumulations of ice as thin as 0. 06 centimeters.
James A. Briscoe - Doylestown OH James C. Putt - Doylestown OH Ronald W. Phillips - Mogadore OH Kevin L. Leffel - Akron OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
B64D 1516
US Classification:
244134A
Abstract:
A de-icer for de-icing those ice accreting surfaces of a skin formed of a material having a substantially elevated modulus, wherein the de-icer is positioned between a support surface and a surface of the skin obverse to the ice accreting surface and inflated to produce a deformation in the skin sufficient to detach and dislodge accumulations of ice on the ice accreting surface but insufficient to exceed an endurance limit for the material from which the skin is formed. The invention finds use in de-icing aircraft surfaces such as wings, tail surfaces, propellers, rotors such as rotating wings, tail rotors and nose cones.
Robert N. Hohenshil - Doylestown OH James C. Putt - Doylestown OH
Assignee:
The B. F. Goodrich Company - Akron OH
International Classification:
F16K 3140 B64D 1516
US Classification:
251 29
Abstract:
An improved high pressure impulse valve includes a pilot section, an intermediate section, and an output section which are pressurized to approximately equilibrium with the inlet pressure during a load portion of the operating cycle and which cooperate to provide extremely rapid full opening of the output section to release fluid under pressure from an accumulator through an output section piston seat. The valve is particularly suitable for use in combination with pneumatic impulse separation systems such as those employed for deicing aircraft surfaces.
A three-stage compressor wherein the housing proper has a central bore with two adjacent bores that are co-axial therewith. A first piston is cooperative with the central bore to define a first stage compression chamber. A second piston smaller than the first piston but integral therewith is received by one of the adjacent bores to define a second stage compression chamber that receives its pressurized air from the first chamber. A third piston smaller than the second piston is received by the remaining one of the adjacent bores to define a third stage compression chamber that receives its pressurized air from the second chamber for further compression.
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