US2010926A - Injector apparatus for case hardening retorts - Google Patents
Injector apparatus for case hardening retorts Download PDFInfo
- Publication number
- US2010926A US2010926A US50660531A US2010926A US 2010926 A US2010926 A US 2010926A US 50660531 A US50660531 A US 50660531A US 2010926 A US2010926 A US 2010926A
- Authority
- US
- United States
- Prior art keywords
- retorts
- gas
- injector
- case hardening
- injector apparatus
- 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
Links
- 239000003085 diluting agent Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005255 carburizing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012634 fragment Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000011724 folic acid Substances 0.000 description 1
- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 1
- 235000019152 folic acid Nutrition 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- 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
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
-
- 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
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87619—With selectively operated flow control means in inlet
- Y10T137/87627—Flow control means is located in aspirated fluid inlet
-
- 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
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87643—With condition responsive valve
Definitions
- a depending flexible hose 5 is diluents which are to be introduced into the reshown, and gas may be drawn into the retort 6 of 1 tort of a case hardening or carburizing furnace furnace I by the injector which comprises tube 4 10 for the purpose of effecting the carburizing of the and a nozzle 1, best shown in Fig. 3. work contained therein.
- a source of gas is indicated as flowing from a
- a broad object of my invention is to provide an service main 9, through a valve H, a flow meter improved apparatus and an improved method of IS, a check valve [5, and into the hose 5 previously 1 using same, capable of highly eincient and acmentioned.
- a blower I1 is a of the gas and diluent and to accomplish this indicated as forcing air through a pipe l9, avalve' efficiently'with apparatus of low first cost and in- 2!, a pipe 23, a flow meter 25, a pipe 21, a check expensive in operation.
- Another object of my invention is to provide an iblehose 33, an elbow 35, and a nipple 31, into 20 improved apparatus and method for this work, the nozzle 7. which is particularly designed to operate efiec- It may be observed that the blower I!
- blower 5 is of a tively in conjunction with gas under very slight conventional centrifugal type, capable of creatpressure, of the order of a fraction of an ounce ing only a small air pressure, usually less than a per square inch, and air under low pressure, such half pound per square inch.
- This tym of blower 5 as can conveniently be created by'a conventional is inexpensive in first cost and is trouble free in blower fan or the like. operation as compared with blowers designed to Another object is to provide a special form of create higher pressures. Venturi injector for such apparatus wherein the However, such low pressures will not entrain cross section of the jet nozzle opening is large gas successfully without a special nozzle, such as 30 in comparison with conventional injectors, the jet nozzle i, being provided.
- Nozzle I has an orifice nozzle opening being preferably half the diameter 39, which has a bore not less than half the diamor more than half the diameter of the throat of eter of the bore of the throat 4
- Another object is to provide an improved ar- The combination in an injector apparatus'for 35 rangement of flexible hose for both the gas and introducing treating gas into heat treating reair whereby the mixture of gas and air may be torts, of a source of gas, insufficient in pressure created in as close proximity as possible to the to effectively mix with a diluent, such as air, and mouth of the retort. inject the mixture into the retort, of a compressor 40
- a diluent such as air, and mouth of the retort.
- Fig. l is a side elevation partly in section of a the diluent in suitable proportions and injected typical apparatus in which my method may be into a retort, means to regulate the quantity of 4.5
- Fig. 2 is an enlarged fragment of the appagas and the diluent whereby the character and ra f Showing One Of the l w meters quantity of the mix may be at all times observed partly in section; and, as it flows.
- Fig. 3 is an enlarged view of the injector from PHILIP c, OSTERMAN;
Description
Aug; 13, 1935. P. c. OSTERMAN V INJECTOR APPARATUS FOR CASE HARDENING RETORTS Filed Jan. 5, 1931 INVENTOR Philip C. Ostermn BY ATTORNEY Patented Aug. 13, 1935 r I p v UNITED STATES PATENT OFFICE INJECTOR APPARATUS For. oAsE HARDENING RETORTS Philip 0. Osterman, Elizabeth, N. J. Application January 5, 1931, Serial No. 506,605 1 Claim. (01. 266-5) This invention is an improvement upon my in- The numeral l indicates a fragment of the right vention described in my United States patent aphand end of a conventional rotary case hardening plication for Carburizing apparatus and method, or carburizing furnace provided with a gas inlet Serial No. 473,179, filed August 5, 1930. pipe 2 and a union 3 at the right hand end of My invention pertains particularly to the methpipe 2. 5 d of using available instrumentalities in an im- In the indicated position, union 3 attaches a proved arrangement, to accurately proportion the Venturi injector tube 4 to pipe 2. At the right quantities of carburizing gas and air or other hand end of tube 4 a depending flexible hose 5 is diluents which are to be introduced into the reshown, and gas may be drawn into the retort 6 of 1 tort of a case hardening or carburizing furnace furnace I by the injector which comprises tube 4 10 for the purpose of effecting the carburizing of the and a nozzle 1, best shown in Fig. 3. work contained therein. A source of gas is indicated as flowing from a A broad object of my invention is to provide an service main 9, through a valve H, a flow meter improved apparatus and an improved method of IS, a check valve [5, and into the hose 5 previously 1 using same, capable of highly eincient and acmentioned. curate control of the proportions and the mixture Referring to the right of Fig. 1, a blower I1 is a of the gas and diluent and to accomplish this indicated as forcing air through a pipe l9, avalve' efficiently'with apparatus of low first cost and in- 2!, a pipe 23, a flow meter 25, a pipe 21, a check expensive in operation. valve 29, a pipe 3|, an elbow 32, a depending flex- Another object of my invention is to provide an iblehose 33, an elbow 35, and a nipple 31, into 20 improved apparatus and method for this work, the nozzle 7. which is particularly designed to operate efiec- It may be observed that the blower I! is of a tively in conjunction with gas under very slight conventional centrifugal type, capable of creatpressure, of the order of a fraction of an ounce ing only a small air pressure, usually less than a per square inch, and air under low pressure, such half pound per square inch. This tym of blower 5 as can conveniently be created by'a conventional is inexpensive in first cost and is trouble free in blower fan or the like. operation as compared with blowers designed to Another object is to provide a special form of create higher pressures. Venturi injector for such apparatus wherein the However, such low pressures will not entrain cross section of the jet nozzle opening is large gas successfully without a special nozzle, such as 30 in comparison with conventional injectors, the jet nozzle i, being provided. Nozzle I has an orifice nozzle opening being preferably half the diameter 39, which has a bore not less than half the diamor more than half the diameter of the throat of eter of the bore of the throat 4| of tube 4. the Venturi tube. I claim:
Another object is to provide an improved ar- The combination in an injector apparatus'for 35 rangement of flexible hose for both the gas and introducing treating gas into heat treating reair whereby the mixture of gas and air may be torts, of a source of gas, insufficient in pressure created in as close proximity as possible to the to effectively mix with a diluent, such as air, and mouth of the retort. inject the mixture into the retort, of a compressor 40 Other objects will appear from the detailed for the diluent, a Venturi injector provided with 40 description of a preferred construction which folan injector nozzle connected to the compressor, lows, and be pointed out in the appended claim. said injector also being connected to the gas source Referring to the accompanying drawing whereby the gas may be entrained and mixed with Fig. l is a side elevation partly in section of a the diluent in suitable proportions and injected typical apparatus in which my method may be into a retort, means to regulate the quantity of 4.5
practiced. the mix and meter means connected to both the Fig. 2 is an enlarged fragment of the appagas and the diluent whereby the character and ra f Showing One Of the l w meters quantity of the mix may be at all times observed partly in section; and, as it flows. 5 Fig. 3 is an enlarged view of the injector from PHILIP c, OSTERMAN;
which the proportions of this part of the apparatus may be readily understood.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50660531 US2010926A (en) | 1931-01-05 | 1931-01-05 | Injector apparatus for case hardening retorts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50660531 US2010926A (en) | 1931-01-05 | 1931-01-05 | Injector apparatus for case hardening retorts |
Publications (1)
Publication Number | Publication Date |
---|---|
US2010926A true US2010926A (en) | 1935-08-13 |
Family
ID=24015280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US50660531 Expired - Lifetime US2010926A (en) | 1931-01-05 | 1931-01-05 | Injector apparatus for case hardening retorts |
Country Status (1)
Country | Link |
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US (1) | US2010926A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2656170A (en) * | 1951-11-16 | 1953-10-20 | Selas Corp Of America | Method and apparatus for heating objects |
US4070424A (en) * | 1976-09-21 | 1978-01-24 | Uop Inc. | Method and apparatus for conditioning flue gas with a mist of H2 SO4 |
-
1931
- 1931-01-05 US US50660531 patent/US2010926A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2656170A (en) * | 1951-11-16 | 1953-10-20 | Selas Corp Of America | Method and apparatus for heating objects |
US4070424A (en) * | 1976-09-21 | 1978-01-24 | Uop Inc. | Method and apparatus for conditioning flue gas with a mist of H2 SO4 |
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