US1597863A - Expansion valve - Google Patents
Expansion valve Download PDFInfo
- Publication number
- US1597863A US1597863A US65628023A US1597863A US 1597863 A US1597863 A US 1597863A US 65628023 A US65628023 A US 65628023A US 1597863 A US1597863 A US 1597863A
- Authority
- US
- United States
- Prior art keywords
- bore
- diaphragm
- expansion valve
- valve
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
-
- 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
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7793—With opening bias [e.g., pressure regulator]
- Y10T137/7809—Reactor surface separated by apertured partition
- Y10T137/782—Reactor surface is diaphragm
- Y10T137/7821—With valve closing bias
Definitions
- the object of my invention is to provide a novel, automatic controlling means for the needle valve, which will close said valve when the pressure is equalized on both sides 1 of the expansion valve.
- an expansion valve with a body portion having a high pressure inlet portat one side and outlet port at the opposite side, a vertical bore in the bottom of the valve body contains a sliding block with a pin which is adapted to open and close a passage from the inlet port.
- a duct leads from this bore to the outlet port and a 'pair of ducts from the outlet port to the 208 under side of the diaphragm and to the under side of a plate resting against the bottom of the diaphragm.
- the diaphragm itself is mounted between the main body and'a cap,
- Figure 1 is a transverse sectional view of zmy expansion valve.
- FIG. 2 is a sectional view taken on the line. 2-2 of Figure 1. i
- my expansion valve consists of a body .1 in which ,is formed. a high pressure, inlet port 2 and an outlet port 3.
- a vertical bore 4 is formed in the bottom of the body 1 and extends upwardly adjaceiit the ports 2 and 3. This bore is adapted to receive] a block 5 which reciprocates therein and carries a needle 6 which is adapted to enter a passage between the port'21and bore 4, thus forming a needle valve 7, as will be further described.
- a port 8 extends from the bore 4 to the port 3, through which the liquid expands into the goohng co1ls.
- a diaphragm 9 is positioned in the upper part of the body 1 and'is held in position by a ,cap 10 which threads into the body against the diaphragm.
- a spring 11 is positioned in the cap 10 and bears against the diaphragm 9 to urge it downwardly.
- the spring .11 is adjusted by a screw 12, which bears upon a plate 13 against the bottom of which plate the spring is positioned. 60
- a cup 14 is threaded to the bottom of the body 1. and a "spring 15 is positioned in the cup and bears against the block 5 to urge it upwardly.
- a plate 1'6 rests against the bottom of the diaphragm 9 and 'is held in position by a pin 17 which depends from the bottom thereof and reciprocates in a bore 18 in the body '1.
- Pins 19 and 20 are secured in the block 5 and extend upwardly through the body 1 and rest against the bottom of the plate 16.
- Ducts 21 and 22 extend from the port 3 to the bore 18 and under the diaphragm 9 respectively, thus equalizing the pressure on both sides of the plate 16.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Description
Aug. 31 1926. 1,597,863
C. L. OLIN EXPANSION VALVE Filed August 7. 1923 lNVENTOR C/ML L. Oil/Y Patented Aug. 31, 1926.
UNITED I STAT/ES PATENT OFFICE.
CARL 'L. OLIN, F OAKLAND, CALIFORNIA.
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Application filed Aug'nst 1-1928. swarm. 656,280.
The object of my invention is to provide a novel, automatic controlling means for the needle valve, which will close said valve when the pressure is equalized on both sides 1 of the expansion valve. To accomplish the above results I provide an expansion valve with a body portion having a high pressure inlet portat one side and outlet port at the opposite side, a vertical bore in the bottom of the valve body contains a sliding block with a pin which is adapted to open and close a passage from the inlet port. A duct leads from this bore to the outlet port and a 'pair of ducts from the outlet port to the 208 under side of the diaphragm and to the under side of a plate resting against the bottom of the diaphragm. The diaphragm itself is mounted between the main body and'a cap,
. and may be tensioned by means of a spring. A pair of pins fixed to the blockloosely edge the plate which bears against the diaphragm and hence control the opening and closing of the inlet passage and thence of the vaive. Other novel objects and advantages will be more specifically described in the following detailed description.
' In the annexed drawing in whichmy in vention is illustrated-- .Figure 1 is a transverse sectional view of zmy expansion valve.
- Figure 2 is a sectional view taken on the line. 2-2 of Figure 1. i
Rei'erring more particularly to the drawing, my expansion valve consists of a body .1 in which ,is formed. a high pressure, inlet port 2 and an outlet port 3. A vertical bore 4 is formed in the bottom of the body 1 and extends upwardly adjaceiit the ports 2 and 3. This bore is adapted to receive] a block 5 which reciprocates therein and carries a needle 6 which is adapted to enter a passage between the port'21and bore 4, thus forming a needle valve 7, as will be further described. A port 8 extends from the bore 4 to the port 3, through which the liquid expands into the goohng co1ls. I
A diaphragm 9 is positioned in the upper part of the body 1 and'is held in position by a ,cap 10 which threads into the body against the diaphragm. A spring 11 is positioned in the cap 10 and bears against the diaphragm 9 to urge it downwardly. The spring .11 is adjusted by a screw 12, which bears upon a plate 13 against the bottom of which plate the spring is positioned. 60
A cup 14 is threaded to the bottom of the body 1. and a "spring 15 is positioned in the cup and bears against the block 5 to urge it upwardly. i
A plate 1'6 rests against the bottom of the diaphragm 9 and 'is held in position by a pin 17 which depends from the bottom thereof and reciprocates in a bore 18 in the body '1. Pins 19 and 20 are secured in the block 5 and extend upwardly through the body 1 and rest against the bottom of the plate 16. Ducts 21 and 22 extend from the port 3 to the bore 18 and under the diaphragm 9 respectively, thus equalizing the pressure on both sides of the plate 16.
The operation of my invention is as follows With the refrigerating machinery running, and a low pressure on the port 3 the diaphragm 9 will be depressed which will lower the plate 1% and consequently move the block 5 and needle 6 downwardly through the medium of thepins 19 and 20, thus opening the valve 7 and permitting the escape of the fluid coming into the port 2. When the machine shuts down and the presphragm 9 rises and the block 5 and needle 6 are raised by the spring 1 5 to close the valve i Having described my'inven'tion, ll claim: An expansion valve comprising a body portion having an inlet port and an. outlet ort, a central bore extending downwardly elow saidports, a block slidably mounted in said bore, and a needle carried thereby, a passage leading from the inlet port to said bore and adaptedto be closed by said needle, a cap secured to the upper portion of said valve body, a diaphragm clamped between the cap and the valve body, a coiled s ring 10% within said cap adapted to urge sai dia- Phmgm rd y. a small bore said valve body, a loose plate having a pin formed integral therewith, said Din being slidable in the said small bore, a duct leading from the large bore to the outlet port, ducts leading from the outlet port to the small bore and to the top of the valve body,
and pins connected to said block and slidable in the valve body and adapted to contact with said loose plate, a second spring to resiliently elevate said block and thereby hold the loose plate in contact with the diaphragm, and a cup having a screw threaded engagement to the lower end of the valve body and adapted to form a seat for said second spring.
In testimony whereof I affix my signature.
CARL L. OLIN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65628023 US1597863A (en) | 1923-08-07 | 1923-08-07 | Expansion valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65628023 US1597863A (en) | 1923-08-07 | 1923-08-07 | Expansion valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US1597863A true US1597863A (en) | 1926-08-31 |
Family
ID=24632383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US65628023 Expired - Lifetime US1597863A (en) | 1923-08-07 | 1923-08-07 | Expansion valve |
Country Status (1)
Country | Link |
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US (1) | US1597863A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002005049A1 (en) * | 2000-07-07 | 2002-01-17 | S.H. Leggitt Company | Direct-acting pressure regulator |
US20080053535A1 (en) * | 2006-08-30 | 2008-03-06 | Leggitt Don C | Cylinder valve regulator |
-
1923
- 1923-08-07 US US65628023 patent/US1597863A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002005049A1 (en) * | 2000-07-07 | 2002-01-17 | S.H. Leggitt Company | Direct-acting pressure regulator |
US6668855B2 (en) * | 2000-07-07 | 2003-12-30 | S. H. Leggitt Company | Direct-acting pressure regulator |
US20080053535A1 (en) * | 2006-08-30 | 2008-03-06 | Leggitt Don C | Cylinder valve regulator |
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