Patent
Induction heater having a cryoresistive induction coil
| العنوان: | Induction heater having a cryoresistive induction coil |
|---|---|
| Patent Number: | 4,247,736 |
| تاريخ النشر: | January 27, 1981 |
| Appl. No: | 05/972,063 |
| Application Filed: | December 21, 1978 |
| مستخلص: | An induction heater having a cryoresistive induction coil comprising an induction coil positioned in a cryostat filled with a cryogenic coolant having a temperature in the range of from 15.degree. to 120.degree. K., a heat-insulating element disposed around the charge to be heated, and a cooled baffle interposed between the cryostat and the heat-insulating element, the induction coil being formed of a metal with chemical purity of 99.99 percent, and at least a part of the cryostat being made of a dielectric material. |
| Inventors: | Grigoriev, Valentin A. (Moscow, SUX); Brodyansky, Viktor M. (Moscow, SUX); Sokolov, Mikhail M. (Moscow, SUX); Kuvaldin, Alexandr B. (Moscow, SUX) |
| Claim: | What is claimed is |
| Claim: | 1. An induction heater comprising |
| Claim: | an induction coil for producing an electromagnetic field; |
| Claim: | a means for cooling said induction coil, said means for cooling including a cryostat filled with a cryogenic coolant, and a plurality of pipes connecting said cryostat with a source of cryogenic coolant; |
| Claim: | said induction coil disposed in said cryostat; |
| Claim: | a heat-insulating element encompassing the product to be heated, said element having no provision for cooling and being made of a non-conductive material, whereby said heat-insulating suppresses the thermal flux released by said product to be heated toward said induction coil; |
| Claim: | a cooled sectionalized baffle for suppressing the heat flux released by said product to be heated, said baffle being interposed between said cryostat and said heat-insulating element; |
| Claim: | said induction coil being made of metal having at least 99.99 percent chemical purity; |
| Claim: | said cryogenic coolant being of a temperature in the range from 15.degree. to 120.degree. K.; and |
| Claim: | said cryostat at least partially including a dielectric material thereby forming an open electric circuit. |
| Claim: | 2. An induction heater as claimed in claim 1, wherein the said induction coil is formed of aluminum, and |
| Claim: | said cryogenic coolant being a condensed gas with a temperature of 70.degree. to 120.degree. K. |
| Claim: | 3. An induction heater as claimed in claim 1, wherein said induction coil is formed of aluminum with a purity of its chemical composition of 99.995 percent, and a condensed gas with a temperature of 15.degree. to 35.degree. K. is used as the cryogenic coolant. PG,12 |
| Claim: | 4. An induction heater as claimed in claims 1, 2, or 3, wherein said cooled baffle is placed in close proximity to said cryostat and in spaced relationship with said heat-insulating element. |
| Current U.S. Class: | 13/27; 13/32; 219/1049R; 219/1079 |
| Patent References Cited: | 1981632 November 1934 Northrup 2281335 April 1942 Somes 3461215 August 1969 Reboux 3551115 December 1970 Jamieson et al. 3636293 January 1972 Schneider et al. |
| Other References: | "Handbook of Chemistry and Physics", 41st Ed., 1959-1960, pp. 2588-2591, Table of Metal Resistivity. |
| Primary Examiner: | Envall, Jr., Roy N. |
| Assistant Examiner: | Leung, Philip H. |
| Attorney, Agent or Firm: | Lackenbach, Lilling & Siegel |
| رقم الانضمام: | edspgr.04247736 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |