US2292963A

US2292963A - Fluid pressure system

Info

Publication number: US2292963A
Application number: US371845A
Authority: US
Inventors: Romeo M Nardone
Original assignee: Bendix Aviation Corp
Current assignee: Bendix Aviation Corp
Priority date: 1940-12-26
Filing date: 1940-12-26
Publication date: 1942-08-11
Anticipated expiration: 1959-08-11

Description

R. M. NARDONE' FLUID' PRESSURE SYSTEM Aug. 11, 1942.

Filed Dec. 26, 1940 v Patented Aug 11, 1942 nuro raassuaa SYSTEM Romeo M. Nardone, Westwood, N. J., assignor to Bendix Aviation Corporation, South Bend, Ind.,

a corporation of Delaware Application December 264940, Serial No. 371,845

I 2 Claims. This invention relates to fluid pressure systems and particularly to the control of the direction An object of the invention is to provide a unitary mechanism by which fluid under pressure may be directed to any selected one of a plurality of fluid receiving units, but only so long as the pressure of the fluid remains wlthin'a predetermined pressure range. o

Another object of the invention is to provid in a unitary flow directing mechanism of the foregoing character, novel means for automatically diverting the flow to a different outlet when the pressure goes beyond the predetermined pressure range. I v

Another object of the invention is to provide,

in a unitary mechanism of the foregoing character, novel means for varying the pressure range and thereby selecting the point at which the fluid will be diverted to a different outlet.

' These and other objects and features of the invention are pointed out in the following description in terms of the embodimentthereof which isshown in the accompanying drawing. It

is to be understood, however, that the drawing is for the purpose of illustration only, and is not designed as a definition of the limits of the invention, reference being had to the appended claims for'this purpose. I

In the drawing:

Fig. 1 is a top plan or end view of a device embodying the invention;

Fig. 2 is an exploded view of the rotatable parts a Fig. 3 is a longitudinal sectional view:

Fig. 4 is a transverse view along the line 4-4 of Fig. 3;

Figs. 5 and 6 are transverse views of the intermeshing tongues of Fig. 2;' and A Fig. 7 is a bottom plan view.

The flow controlling means is shown as being provided with an inlet port I adapted to direct the entering fluid into a chamber provided centrally of the mechanism and from which chamher the fluid, may be directed into lateral openings in a rotatable hollow spindle 8, at the upper portion of which is another lateral port is (Fig.

4) from which the fluid may emerge into any selected one of the outlet ports 4 leading to various fluid receiving units. not shown; the selection of the particular outlet being determined by the rotation of the handle! pinned to the upper end of the spindle 3 and having a projecting index element adapted to register with any selected one along the upper surface of the valve mechanism as indicated in Fig 1, the location of the reference characters corresponding to the angular spacing of the outlets l.- A spring-pressed ball 5 His adapted to cooperate with depressions M in the under surface of the hub i5 of the handle i and thus yieldably retain the handlejn the selected position.

The hollow spindle 3 terminates in a series of m unevenly spaced tongues or teeth l6, adapted to mesh with corresponding tongues or teeth I! projecting upwardly from a disk 6 having apertures I therein, the spacing of said apertures I being uniform and corresponding to'the spacing of the It outlets 4.- As shown in Fig. 3, the disk 8 is rotatable upon the flat upper surface of a trans- 1 versely extending partition ll shown as integral with the lowersection IQ of the valve housing. In said lower "section, It. there are two recipro- ZO-cable valves 8 and ll of the poppet type, each provided with a spring adapted to yieldably urge its valve into engagement with one of a pair of 30 threaded cap-nut 8a, provides a means of ad- 'iustment of the pressure upon the spring of the valve 8 and thereby affords a means for regulating the pressure at which thevalve will open. A similar mechanism may be provided with the 3.1 cap-nut Ila of the valve Ii, if desired, but it will be apparent as the explanation of the mecha- "nism progresses that the system may function satisfactorily with. one valve pre-set and the other adjustable at will to accommodate the op- 4 eration to varying conditions.

With the foregoing construction in mind, it will be apparent that fluid entering at l passes through holes 2 in spindle l and out through one of the four outlets l When handle 5 is turned clockwise to any one of the four positions, plate valve 6 is carried around with lso that one of four equally spaced holes 1 is'in registry with the relief valve 8. If

the pressure exceeds the valve setting, valve 8.

opens and fluid goes out through outlet l0 When the handle, is turned anti-clockwise, the first 45 degrees of movement of spindle 3 is not transmitted as motion to valve plate 6, due to the provision of a 45 degree gap in the mating of the reference characters located in a circle 55 tongues or teeth, as indicated in Figs. 2, 5 and 6.

The second so degrees oi movent carries plate 6 around so that one or holes '8 is in registry with the second relief valve 5! located 135 degrees away from 8. Thus only one valve is exposed to fluid pressure, while the other is closed. It the second valve is set at a higher value than the first, it will open only after the pressure'iics increased correspondingly. Thus there is nrovided a means for getting fluid at diflerent pressures, at the outlet iii, depending upon the direction' or? turning the handle 5.

What is claimed is:

i. a valve mechanism, a pair of excess pressure relief valves nlly closed by so pressure of diiferent values, a ported plate comtro application of pressure to said valves, is third valve registrahle with any selected one of & plura-lity of outlet ports, said third valve also having constant communication with said ported plate,

y dq i e single means for simultaneously shifting sm-u third valve and said ported. plate, the excess pressure relief velves being so spaced with respect to the ports in the plate and coordinated with said shifting means that on shifting the shifting means in one direction one of the ports in the plate will register with one of the excess pressure relief valves whenever the third valve registers with one of the selected outlet ports and when the shifting means is shifted in the opposite direction one of theports in the plat will c eeses rcgism' with the other excess pressure relief valve whenever the third valve registers with one oi the selected outlet ports,

in a, valve mechanism, 9. pair of excess pressure roller valves normally closed by spring pres= oi different values, at ported plate controlopplicction or pressure to said valves, 9. third valve :registrahle with any selected one or a plureality or outlet norts, said third valve also having constant couioicstion with said ported plate, a. single means for simultaneously shifting s third valve and said ported plate, the excess pressure roller valves being so spaced with respect to the ports in the plate and coordinated with said shifting means that on shifting the shifting means in one direction one of the ports in th plate will register with one of the excess pressure relief valves whenever the third valve registers. with one of the selected outlet ports and when the shifting means is shifted in the opposite direction one of the ports in the plate will register with the other excess pressure relief valve whenever the third valve registers with one of the selected outlet ports, said single means including a driving member which produces difiercnt degrees of movement of said ported plate, according to the direction or movement of said driving member, and in response to equal degrees of movement of said driving member.

ROMEO M. NARDONE.