US834626A - Unloader for single-acting compressors. - Google Patents

Unloader for single-acting compressors. Download PDF

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Publication number
US834626A
US834626A US23401104A US1904234011A US834626A US 834626 A US834626 A US 834626A US 23401104 A US23401104 A US 23401104A US 1904234011 A US1904234011 A US 1904234011A US 834626 A US834626 A US 834626A
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Prior art keywords
valve
port
unloader
discharge
electromagnet
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US23401104A
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Frederick Van Duzer Longacre
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Ingersoll Rand Co
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Ingersoll Rand Co
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Priority to US23401104A priority Critical patent/US834626A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids

Definitions

  • TheA object v ⁇ of this invention is to provide certain improvements in the construction
  • FIG. 2 isasimilar view showing the
  • FIG. 3 is a dia ⁇ grammatic view showin lan electrical system suitable for'use in contro ling the operation of the unloader-electromagnet, the said view including portions of a one stage air compressor, a receiver, the unloader, and the ipe connectionsy between 'the discharge va ves,
  • Figlfi is a-detail View in section of one ofthe disc arge-valves.y
  • the electromagnet comprises a suitable bracket 1, the coil 2, and the core 3.
  • the electromagnet herein represented is of the solenoid type, and the core 3 is fitted to slide vertically in a tube 4, the lower end of which is provided with a removable cap 5,
  • the racket 1 of the electromagnet is surmounted by the valve-box 6, the vsaid valvebox having achamber 7, the up er end oi.V which isclosed by a top cap 8, w 'ch has a screw-threaded engagement with the walls of This top cap 8 ⁇ is pro.-
  • valve-seat 1() is provlded through the side ofthe valve-box, which port -11 is arran ed to be connected to the space back of a ischarge-valve 24 of a one-stage at the inner end of the port 9.
  • a pressureport 11 ⁇ opens into the valve-chamber r7 air-compressor 26 through a pipe 25. In the present instance two discharge-valves 24 and to the common ressure-port 11.
  • A12 is A ring seated in t e bottom of the valve-chamber 7, 'v l the bore of which ring forms an exhaust-port 13, which communicates with-a central exhaust-chamber 14, from which transverse jy ports 15 lead to the exterior ofthe valve-box.
  • the mouth' of the port 13 is provided with a valve-seat 16.
  • the ball-valve is denoted by 17'and normally restsupon its seat 16, leaving communication. open between the receiver pressureport and the discharge-valve pressure-port.
  • valve-box 6 is provided with a stepped hollow, depending portion 18 19, the larger ortion 18 being fitted to the top of the- ⁇ racket land the 'smaller' portion 19, being extended into the electromagnet 2 and hav- 1 ing a screw-threaded engagement with the top of the core-tube 4.
  • a rod 20 rests upon the top of the core 3 and extends with an easy sliding t upwardly through the valve-box into engagement wit the bottom of the valve 17,.l It is desirable that the upward movement of the rod 20v and core 3 when theelectromagnet 2 is energized be retarded to a certain extent, so as to prevent a too'rapid shifting of the valve 17.
  • valve-box 6 of some magnetic material-such, for instance, asmagnetic ironso that when the electromagnet 2Kis energized a certain amount of ma netism lis imparted to the' valve-box 6.
  • i he attraction of the rod 20 to port, an exhaust-port and a dischar e-va alternately opening and closin the pressureV su ply and exhaust ports to t e dischargeva ve ort.
  • a discharge-valve therefor andlan unloader comprising a valvebox, its chamber having a pressure-supply ve gort in communication with the bac of the iseharge-valve, a' valve for 4o ening and closing communication from t e pressure supply and exhaust ports to the dischargeva ve port, an eleotromagnet of the solenoid type having a centrally-arranged tube, a core t erein, a removable bottom cap engaging the tube for limiting the downward movement of the core and a rod interposed between the top of the core and valve for bringing the valve under the control of the operation of the electromagnet.
  • An air-compressor, avdischarge-valve therefor, a receiver and an unloader comprising a valve-box, its. chamber having a pressure-port in communication with the receiVer, a' discharge-.valve port in communication withithe backl ofthe dischar e-valve, and an exhaust-port, a ball-valve or alternately openingj and closing communication from the receiver pressure-port and'exhaustport to the discharge-valve port and electrically-controlledl means for operating the valve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Magnetically Actuated Valves (AREA)
  • Compressor (AREA)

Description

No. 834,626. PATENTED OCT. 30, 1906. P. VAN D. LONGACRB. l UNLOADER FOR SINGLE ACTING COMPRESSORS.
v APPLICATION ILED NOV.23.1904.
2 SHEETS-SHEET 1.
Wl, .Ww/
PATENTED OCT. 30, 1906.
F. VAN D. LONGAGRB. UNLOADBR POR SINGLE ACTING GOMPRBssoRs.
APPLIGATION IILED NOV.23,1904.
2 SHEETS-SHEET 2,
UNITED sTATEs PATENT oFFICE.
"FREDERICK VAN DUZEE.LCNGACREv oF NEW YORK, N. Y., ASSIGNOR To INGERsoLL-RAND COMPANY. yoF NEWYCRK, N. .Y., A CoRFoRATioN C y oF NEvir JERSEY.` l
lUNLOAIDEE Fon AslNew.l-z-arrlrlae. coMPnEssoBs.'
To all whom lit -may concern,.-
:Be it known that I, FREDERICK VAN VDUZERv LONGACRE, a citizen of the United States, and a resident of the borou h of Manhattan, in the city and State of ew York, havei'nvented new and useful Improvements t in Unloaders for Single-Acting Compressors,
of which the following is a specification.
TheA object v`of this invention is to provide certain improvements in the construction,
`form, and arrangement of the several parts between the pressure-port of the discharge# valve andthe receiver. IFig. 2 isasimilar view showing the |positions of the parts'when the electromagnet is energized and communication is established between the pressure-port of the discharge-valve andthe exhaust-port leading to the atmosphere. Fig. 3 is a dia` grammatic view showin lan electrical system suitable for'use in contro ling the operation of the unloader-electromagnet, the said view including portions of a one stage air compressor, a receiver, the unloader, and the ipe connectionsy between 'the discharge va ves,
receiver, and unloader; and Figlfi is a-detail View in section of one ofthe disc arge-valves.y
In this type of unloader pressure is established back of the discharge-valve by openin communicationfrom the receiver to the bac of the discharge-valve, and the dischar evalve is unloaded yat any desired moment y the energiz'ation of an electromagnet whic will operate a valve and open communication l from the space back of` the discharge-valve to the atmosphere, which valve at thevsame time will close the lreceiver pressure-port.
The electromagnet comprises a suitable bracket 1, the coil 2, and the core 3.
The electromagnet herein represented is of the solenoid type, and the core 3 is fitted to slide vertically in a tube 4, the lower end of which is provided with a removable cap 5,
f Specification of Letters Patent. l Application iiledN-oveinber 23, 1964. Serial No. 234.011.
x the said chamber. vided with a pressure-port 9, which is adapted their pipes 25 are shown as connected 'Patented oct. 30,1906.
which cap serves to support the core 3 when `the ma net is denergized. v
The racket 1 of the electromagnet is surmounted by the valve-box 6, the vsaid valvebox having achamber 7, the up er end oi.V which isclosed by a top cap 8, w 'ch has a screw-threaded engagement with the walls of This top cap 8 `is pro.-
yto be connected to a receiver 22 through a pipe 23. A suitable valve-seat 1() is provlded through the side ofthe valve-box, which port -11 is arran ed to be connected to the space back of a ischarge-valve 24 of a one-stage at the inner end of the port 9. A pressureport 11` opens into the valve-chamber r7 air-compressor 26 through a pipe 25. In the present instance two discharge-valves 24 and to the common ressure-port 11. A12 is A ring seated in t e bottom of the valve-chamber 7, 'v l the bore of which ring forms an exhaust-port 13, which communicates with-a central exhaust-chamber 14, from which transverse jy ports 15 lead to the exterior ofthe valve-box.
The mouth' of the port 13 is provided with a valve-seat 16.
j The ball-valve is denoted by 17'and normally restsupon its seat 16, leaving communication. open between the receiver pressureport and the discharge-valve pressure-port.
- The valve-box 6 is provided with a stepped hollow, depending portion 18 19, the larger ortion 18 being fitted to the top of the- `racket land the 'smaller' portion 19, being extended into the electromagnet 2 and hav- 1 ing a screw-threaded engagement with the top of the core-tube 4.
A rod 20 rests upon the top of the core 3 and extends with an easy sliding t upwardly through the valve-box into engagement wit the bottom of the valve 17,.l It is desirable that the upward movement of the rod 20v and core 3 when theelectromagnet 2 is energized be retarded to a certain extent, so as to prevent a too'rapid shifting of the valve 17.
This object is accomplished by making the valve-box 6 of some magnetic material-such, for instance, asmagnetic ironso that when the electromagnet 2Kis energized a certain amount of ma netism lis imparted to the' valve-box 6. i he attraction of the rod 20 to port, an exhaust-port and a dischar e-va alternately opening and closin the pressureV su ply and exhaust ports to t e dischargeva ve ort. i y
8. air-compressor, a discharge-valve therefor andlan unloader comprising a valvebox, its chamber having a pressure-supply ve gort in communication with the bac of the iseharge-valve, a' valve for 4o ening and closing communication from t e pressure supply and exhaust ports to the dischargeva ve port, an eleotromagnet of the solenoid type having a centrally-arranged tube, a core t erein, a removable bottom cap engaging the tube for limiting the downward movement of the core and a rod interposed between the top of the core and valve for bringing the valve under the control of the operation of the electromagnet.
-my invention I have signed 9. An air-compressor, avdischarge-valve therefor, a receiver and an unloader comprising a valve-box, its. chamber having a pressure-port in communication with the receiVer, a' discharge-.valve port in communication withithe backl ofthe dischar e-valve, and an exhaust-port, a ball-valve or alternately openingj and closing communication from the receiver pressure-port and'exhaustport to the discharge-valve port and electrically-controlledl means for operating the valve.
In testimony that I claim the foregoing as my name7 in resence of two witnesses, this 14th day of ovember, 1904. i
FREDERICK VAN DUZER LONGACR,
Witnesses: o
FREDK.' HAYNES, HENRY THIEME.
US23401104A 1904-11-23 1904-11-23 Unloader for single-acting compressors. Expired - Lifetime US834626A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822818A (en) * 1956-01-09 1958-02-11 Frank A Pachmayr Valve device
US2887125A (en) * 1956-03-16 1959-05-19 Sarl Rech S Etudes Production Electro-valve distributor
US3318570A (en) * 1963-12-18 1967-05-09 Lane Donald Bruce Bleeder valves
US4712767A (en) * 1986-10-29 1987-12-15 Allied Corporation Solenoid control valve
US5368019A (en) * 1992-12-16 1994-11-29 Puritan-Bennett Corporation System and method for operating a respirator compressor system under low voltage conditions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822818A (en) * 1956-01-09 1958-02-11 Frank A Pachmayr Valve device
US2887125A (en) * 1956-03-16 1959-05-19 Sarl Rech S Etudes Production Electro-valve distributor
US3318570A (en) * 1963-12-18 1967-05-09 Lane Donald Bruce Bleeder valves
US4712767A (en) * 1986-10-29 1987-12-15 Allied Corporation Solenoid control valve
US5368019A (en) * 1992-12-16 1994-11-29 Puritan-Bennett Corporation System and method for operating a respirator compressor system under low voltage conditions

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