US2430427A - Check valve - Google Patents

Check valve Download PDF

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Publication number
US2430427A
US2430427A US509645A US50964543A US2430427A US 2430427 A US2430427 A US 2430427A US 509645 A US509645 A US 509645A US 50964543 A US50964543 A US 50964543A US 2430427 A US2430427 A US 2430427A
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US
United States
Prior art keywords
ring
valve
rim
cage
check valve
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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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US509645A
Inventor
Katcher Morris
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Katcher Morris
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Publication date
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Priority to US509645A priority Critical patent/US2430427A/en
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Publication of US2430427A publication Critical patent/US2430427A/en
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Expired - Lifetime legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/025Check valves with guided rigid valve members the valve being loaded by a helicoidal spring
    • F16K15/026Check valves with guided rigid valve members the valve being loaded by a helicoidal spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028Check valves with guided rigid valve members the valve being loaded by a helicoidal spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/12Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
    • F02M59/14Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary of elastic-wall type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/13Special devices for making an explosive mixture; Fuel pumps
    • F02M2700/1317Fuel pumpo for internal combustion engines
    • F02M2700/1323Controlled diaphragm type fuel pump
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7904Reciprocating valves
    • Y10T137/7922Spring biased
    • Y10T137/7929Spring coaxial with valve
    • Y10T137/7938Guide means integral and coplanar with valve disk

Description

Nov. 4, 1947. I I M. KATCHER CHECK VALVE Filed Nov. 10, 1945 ATTORN EY Patented Nov. 4, 1947 UNITED I1 ICE iEHECK "MorrisiKatcher,NewiiorhflJX. Application November 10, l 943gfserialfNo$fill9$i5 This invention relates to a check valve, especially one which is suitable for use in a fuel pump for internal combustion engines. In pumps of this type, it has been a practice to use valves which can be pushed in with a forced fit into the passages of the pump. The principal part of valves of this type is made of a sheet metal stamping of a rather complicated form. The assembling of the parts of the valve also offers difficulties. Valves of this type can be seen at 41 and 49 in Fig. 1 of Patent No. 2,036,452. It is an object of the present invention to construct a valve in which the two principal parts are formed from simple sheet metal stampings, namely, a trough-shaped ring and a cage which can be given a forced fit in the ring. The outside surface of the ring is substantially cylindrical, so that it can be readily given a forced fit in the circular passages of a fuel pump.

Other objects and advantages will become ap-' parent upon further study of the description and drawing, in which:

Fig. 1 is a substantially median vertical section through a fuel pump showing two of my valves set therein;

Fig. 2 is a plan view of the inlet side of the valve with a portion broken away to show the side of the plate beneath;

Fig. 3 is a section taken along the line 3-3 of Fig. 2;

Fig. 4 is a plan view of the outlet side of the valve, and

Fig. 5 is a section taken similarly to Fig. 3 of a modified form of the valve.

Near the end of inlet nipple B of the fuel pump is set one of my valves, valve 1, with a forced fit therein, the ring 8 of the valve being pushed against shoulder 9. Inlet nipple 6 leads to a chamber H! in which is mounted diaphragm |l. Outlet nipple |2 leads the fuel from chamber H]. In outlet nipple I2 is set another of my valves, valve l3, which has a mounting similar to that of valve 1. Valve 1 permits the fuel to enter chamber I but not to pass out to the left therefrom. Valve |3 permits the fuel to leave chamber ID and to enter nipple l2 but not to return. Diaphragm II is held between washers M which are attached to the upper end of rod Ill. The lower end of rod l has a slot IS in which one end of crank l1 plays. Crank I1 is fixed at its other end to rock shaft l8, said shaft being rocked by mechanism not shown but which is well known to the art wherein fuel pumps are used. The reciprocation of crank causes rod l5 to flex diaphragm H up and down effecting the intake of fuel through valve I and its discharge through valve I3.

Valve 1 consists of a ring or crown 8 of relatively heavy gauge metal. Ring 8 is substantially trough-shaped in cross section. A retainer cage IQ of relatively lighter gauge metal has a cylindrical upper portion 20 which is given a forced fit with the inside of the outer rim'2l of ring 8, Fig. 3. The inside surface of rim 2| is substantially cylindrical. Arms 26 extend upward from a substantially flat base 22 to join the latter with the cylindrical upper portion 20. A spring 23 is set upon base 22 and at its upper end presses or seats a polygonal plate 25 against the bottom edge of inner rim 24 of ring 8. Parts 8, l9 and 25 are readily stamped from sheet metal and easily assembled with spring 23. In its broader sense base 22 is merely a transversely extending portion of cage l9 not necessarily fiat or imperforate.

In Fig. 5 is shown a valve of modified construction. It comprises a relatively heavy gauge ring 3| of sheet metal of trough-shaped cross section, the trough being of V-form, the outer rim 2! of which instead of having a cylindrical inner surface as with ring 8 of Fig. 3, has a substantially truncated conical one. Cage 28 has a flat base 29 as before, with arms 30 extending upward therefrom. The inner rim 32 of ring 3| has its outer surface also of substantially truncated conical form but with a flatter conical angle. Upper portion 33 of cage 28 before it was forced into ring 3| was inscribable in a cylinder as shown for the upper cylindrical portion 20 of Fig. 3. As cage 28 is forced into ring 3|, the top of portion 33 first strikes the upper part of the outer surface of inner rim 32 and then is spread outward to engage the inner surface of outer rim 21. Spring 23 and plate 25 are similar in construction and function to those shown in Figs. 3 and 4.

In operation, liquid entering the valve passes inward through rings 8 or 3| and pushes down plate 25 away from the ring against the pressure of spring 23. Once this is done the liquid passes by the edge of plate 25 and through the spaces between the arms of cages IE! or 2B. When fluid enters the valve in the reverse direction, plate 25 is pushed against ring 8 in the valve of Fig. 3 and against ring 3| in the valve of Fig. 5, in both cases blocking the flow of fluid through the valve.

I claim:

A check valve comprising a ring, trough-shaped in cross section, said trough being substantially V-shaped providing an inner and an outer rim extending axially of said ring, a cage having a substantially transversely extending base and a portion extending generally axially from the base to the ring, said rims extending with their free edges toward the base, the inside surface of the outer rim being in the form of a truncated cone with its largest diameter away from the free edge of said latter rim, the outside surface of the inner rim also being in the form of a truncated cone but at a greater inclination with the axis of the ring than said inside surface, said cage portion extending into the ring with a tight fit with the entire inside surface of the outer rim of the ring, a transversely extending member movable within the cage to seat against the free edge of the inner rim of the ring, and a spring between the member and said base, normal holding the member in seated position against 7 said inner rim.

MORRIS KATCHER.

4 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,251,758 Dayton Jan. 1, 1918 2,027,137 Yeomans Jan. 7, 1936 1,998,444 Clapp Apr. 23, 1935 1,654,474 Wolter Dec. 27, 1927 1,872,928 Giiford Aug. 23, 1932 2,320,697 Binder June 1, 1943 484,843 Bavier Oct. 25, 1892 517,914 Bavier Apr. 10, 1894 2,241,758 Baldine May 13, 1941 1,413,371 Adler Apr. 18, 1922 FOREIGN PATENTS Number Country Date 341,761 Italy I935

US509645A 1943-11-10 1943-11-10 Check valve Expired - Lifetime US2430427A (en)

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Application Number Priority Date Filing Date Title
US509645A US2430427A (en) 1943-11-10 1943-11-10 Check valve

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US509645A US2430427A (en) 1943-11-10 1943-11-10 Check valve

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US2430427A true US2430427A (en) 1947-11-04

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US509645A Expired - Lifetime US2430427A (en) 1943-11-10 1943-11-10 Check valve

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569176A (en) * 1946-03-08 1951-09-25 Katcher Morris Check valve
US2585773A (en) * 1949-05-05 1952-02-12 Campbell Hausfeld Company Valve
US2599898A (en) * 1946-07-19 1952-06-10 American Brake Shoe Co Valve
US2753888A (en) * 1950-09-07 1956-07-10 Chrysler Corp Shock absorber valve
US2966925A (en) * 1958-04-21 1961-01-03 William G Spence Check valves
US3154096A (en) * 1962-08-13 1964-10-27 John J Bell Check valves
US3790306A (en) * 1970-10-13 1974-02-05 Fujiwara Mfg Co Ltd Pumping trap for condensate
US3804114A (en) * 1972-02-28 1974-04-16 Brunswick Corp Check valve
EP0254450A2 (en) * 1986-07-25 1988-01-27 Titan Tool, Inc. Hydraulic paint pump
US5797427A (en) * 1996-10-11 1998-08-25 Buescher; Alfred J. Fuel injector check valve

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US484843A (en) * 1892-10-25 bavier
US517914A (en) * 1894-04-10 Charles s
US1251758A (en) * 1917-02-24 1918-01-01 Frederick M Dayton Toy-balloon valve.
US1413371A (en) * 1921-07-30 1922-04-18 John B Adler Automatic air-supply control for internal-combustion engines
US1654474A (en) * 1922-12-26 1927-12-27 R C Headley Breather-pipe cap
US1872928A (en) * 1925-09-04 1932-08-23 Gifford William Arthur Valve
US1998444A (en) * 1927-12-29 1935-04-23 Sullivan Machinery Co Valve mechanism
US2027137A (en) * 1932-08-17 1936-01-07 Lucien I Yeomans Container
US2241758A (en) * 1938-12-12 1941-05-13 Joseph J Baldine Automatic valve for hose nozzles
US2320697A (en) * 1939-10-24 1943-06-01 Binder Richard Shock absorber with spring-plate valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US484843A (en) * 1892-10-25 bavier
US517914A (en) * 1894-04-10 Charles s
US1251758A (en) * 1917-02-24 1918-01-01 Frederick M Dayton Toy-balloon valve.
US1413371A (en) * 1921-07-30 1922-04-18 John B Adler Automatic air-supply control for internal-combustion engines
US1654474A (en) * 1922-12-26 1927-12-27 R C Headley Breather-pipe cap
US1872928A (en) * 1925-09-04 1932-08-23 Gifford William Arthur Valve
US1998444A (en) * 1927-12-29 1935-04-23 Sullivan Machinery Co Valve mechanism
US2027137A (en) * 1932-08-17 1936-01-07 Lucien I Yeomans Container
US2241758A (en) * 1938-12-12 1941-05-13 Joseph J Baldine Automatic valve for hose nozzles
US2320697A (en) * 1939-10-24 1943-06-01 Binder Richard Shock absorber with spring-plate valve

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569176A (en) * 1946-03-08 1951-09-25 Katcher Morris Check valve
US2599898A (en) * 1946-07-19 1952-06-10 American Brake Shoe Co Valve
US2585773A (en) * 1949-05-05 1952-02-12 Campbell Hausfeld Company Valve
US2753888A (en) * 1950-09-07 1956-07-10 Chrysler Corp Shock absorber valve
US2966925A (en) * 1958-04-21 1961-01-03 William G Spence Check valves
US3154096A (en) * 1962-08-13 1964-10-27 John J Bell Check valves
US3790306A (en) * 1970-10-13 1974-02-05 Fujiwara Mfg Co Ltd Pumping trap for condensate
US3804114A (en) * 1972-02-28 1974-04-16 Brunswick Corp Check valve
EP0254450A2 (en) * 1986-07-25 1988-01-27 Titan Tool, Inc. Hydraulic paint pump
US4768932A (en) * 1986-07-25 1988-09-06 Geberth John Daniel Jun Hydraulic paint pump
EP0254450A3 (en) * 1986-07-25 1990-05-23 John Daniel Geberth, Jr. Hydraulic paint pump
US5797427A (en) * 1996-10-11 1998-08-25 Buescher; Alfred J. Fuel injector check valve

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