US519360A - Governor for feed-pumps - Google Patents

Governor for feed-pumps Download PDF

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Publication number
US519360A
US519360A US519360DA US519360A US 519360 A US519360 A US 519360A US 519360D A US519360D A US 519360DA US 519360 A US519360 A US 519360A
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Prior art keywords
steam
governor
pumps
feed
pressure
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Expired - Lifetime
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7905—Plural biasing means

Definitions

  • feed pumps and consists in the construction I and combinations substantiallyas hereinafter described and pointed out in the claim.
  • Figure 1 is a rear end elevation of two of a battery of boilers showing the pipe connections with the same, and a steam pump having my governor attached.
  • Fig. 2 is a longitudinal section of the governor.
  • A represents the rear ends of two of a bat tery of boilers, which may be of any of the well known constructions, and P is a steam pump.
  • B is a steam pipe between t the boiler and the steam chest of the pump engine.
  • 0 is the discharge pipe from the pump cylinder to the boiler.
  • F represents pipes in a feed water regulator for which a patent was granted to me December 27, 1892.
  • D is a frame, one end of which is connected with the steam valve E in the steam pipe 13, and is provided with a stuffing box, through which the valve stem G passes. .
  • a small cylinder H In the other end of the frame D is provided a small cylinder H in which is a piston I, its rod joined.
  • valve stem G The cylinder H is connected by a union and T connection with the discharge pipe 0, or it may be connected directly with the air-chamber J, of the pump if. desired, as may be most convenient.
  • K is a cross-bar on the piston rod, joined to the cylinder end of frameD by rods L, L, and a spiral spring s is placed on the piston rod between the piston and the said cross bar K.
  • m is a union nut on the piston rod for adjusting the length of the rod and valve stem.
  • 0 is a gage suitably attached to the discharge pipe or air-chamber, by which the pressure may be readily ascertalned.
  • valve E and pistonI are opposed to each other, so thatwhen the steam pressure and the water pressure are alike, the pump ceases to act, should the water pressure go down the steam pressure will force the valve E open and set the pump going until the water pressure is again raised to equal the steam pressure.
  • the design of the spring is to give some advantage to the steam valve. By tlghtening up on the nuts on rods L, L, the spring is forced against the piston head, thereby creating as much or as little water pressure above the steam pressure as desired, and this extra pressure will be maintained followrng the steam pressure up or down, thus maintain'ing an even pressure that puts water in the boiler whether the steam is high or low.
  • valve actuated by the steam pressure from the boiler in opposition to said Water pressure; a cross-head K on said rod Gr,rods L L connecting said cross-head to the frar ne D; and springs S on said rod G having its bearings against said cross head and plston,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Reciprocating Pumps (AREA)

Description

(No Model.) 2 Shjeets-S heet 1.
J.THOMAS.' GOVERNOR. FOR FEED PUMPS. No. 519,360. Patented May 8,1894.
Egl I' J1 l g E7 CM/ J i 17 if i 13 v E I E I L I (No Mdel. 2 Sheets-Sheet 2.
. J. THOMAS. Gammon PORQPEED PUMPS. I
No. 519,360. Patented May 8, 1894.
fl'viizzaaed, v 1 llyfi elfial;
UNITED STATES PATENT OFFICE.
JOSHUA THOMAS, on CLEVELAND, OHIO.
GOVERNOR FOR FEED-PUMPS.
SPECIFICATION forming part of Letters Patent No. 519,360, dated May 8, 1894.
Application filed February 27, 1893- Serial No. 463,844.. (No model.)
feed pumps, and consists in the construction I and combinations substantiallyas hereinafter described and pointed out in the claim.
In the accompanying drawings, Figure 1 is a rear end elevation of two of a battery of boilers showing the pipe connections with the same, and a steam pump having my governor attached. Fig. 2 is a longitudinal section of the governor.
A represents the rear ends of two of a bat tery of boilers, which may be of any of the well known constructions, and P is a steam pump. I
B is a steam pipe between t the boiler and the steam chest of the pump engine.
0 is the discharge pipe from the pump cylinder to the boiler.
F represents pipes in a feed water regulator for which a patent was granted to me December 27, 1892.
The subject of this application is an automatic pump governor, described as follows:
D is a frame, one end of which is connected with the steam valve E in the steam pipe 13, and is provided with a stuffing box, through which the valve stem G passes. .In the other end of the frame D is provided a small cylinder H in which is a piston I, its rod joined.
to valve stem G. The cylinder H is connected by a union and T connection with the discharge pipe 0, or it may be connected directly with the air-chamber J, of the pump if. desired, as may be most convenient. Be-
tween the union and T is provided a throttle valve, for closing said communication when desired. K is a cross-bar on the piston rod, joined to the cylinder end of frameD by rods L, L, and a spiral spring s is placed on the piston rod between the piston and the said cross bar K. m is a union nut on the piston rod for adjusting the length of the rod and valve stem. 0 is a gage suitably attached to the discharge pipe or air-chamber, by which the pressure may be readily ascertalned.
The valve E and pistonI are opposed to each other, so thatwhen the steam pressure and the water pressure are alike, the pump ceases to act, should the water pressure go down the steam pressure will force the valve E open and set the pump going until the water pressure is again raised to equal the steam pressure.
The design of the spring is to give some advantage to the steam valve. By tlghtening up on the nuts on rods L, L, the spring is forced against the piston head, thereby creating as much or as little water pressure above the steam pressure as desired, and this extra pressure will be maintained followrng the steam pressure up or down, thus maintain'ing an even pressure that puts water in the boiler whether the steam is high or low.
Having described my invention, I claim- The combination in a governor for feed pumps for steam boilers, of a frame D,cy11nder H in one end of said frame, p1ston I 111 said cylinder actuated by the Water pressure from the boiler; valve E attached to oppos te end of said frame D and joined to said piston by joint piston rod and valve stem G,
said valve actuated by the steam pressure from the boiler in opposition to said Water pressure; a cross-head K on said rod Gr,rods L L connecting said cross-head to the frar ne D; and springs S on said rod G having its bearings against said cross head and plston,
constructed and adapted to operate substantially as and for the purpose set forth.
JOSHUA THOMAS. Witnesses: GEO. W. TIBBITTS, E. JAY PINNEY.
US519360D Governor for feed-pumps Expired - Lifetime US519360A (en)

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