Patent US3855719A successfully refreshed from Google Patents.
US3855719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and a device in connection with a regenerative drier for gas under overpressure
Assignee: Carl Munters AB
•
Filing: 1973-03-05
•
Granted: 1974-12-24
•
Expires: 1993-03-05
Abstract
Abstract Moist compressed air is fed into one sector of a rotor made of a hygroscopic material such as asbestos and having channels in it which are parallel to its axis. From the channels of this sector the air flows to a condenser and from the condenser the air flows through the channels of another sector of the rotor and out to its place of use. The channels of a third sector of the rotor are cooled by sucking air through them into a duct which conveys this air on to the condenser. The slowly rotating rotor causes air coming from the compressor to regenerate the channels of the rotor.
Inventors
- 👤 U Jonsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:21
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/16; F26; F26B; F26B21/00; F26B21/30; F26B21/33
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
A method of using a regenerative drier for treating a hot gas compressed in a compressor unit, comprising, rotatably mounting a rotor in a housing, said rotor being composed of a substance with hygroscopic properties, and having therethrough a plurality of axially extending channels, dividing the space occupied by said rotor into a drying zone and a regenerating zone, each of which zones includes a different group of said channels in said rotor, and causing substantially all the hot gas coming from the compressor first to pass axially through the rotor channels in said regenerating zone to remove moisture therefrom, and then to be cooled and predried in a condenser before passing through the rotor channels in said drying zone for final drying.
Claim 2
Independent Claim
123 words
A method of using a regenerative drier for treating a hot gas compressed in a compressor unit, comprising, rotatably mounting a rotor in a housing, said rotor being composed of a substance with hygroscopic properties, and having therethrough a plurality of axially extending channels, dividing the space occupied by said rotor into a drying zone and a regenerating zone, each of which zones includes a different group of said channels in said rotor, and causing substantially all the hot gas coming from the compressor first to pass axially through the rotor channels in said regenerating zone to remove moisture therefrom, and then to be cooled and predried in a condenser before passing through the rotor channels in said drying zone for final drying.
Claim 3
Dependent Claim
84 words
A method according to claim 1, including causing any gas, which leaks from the regenerating zone in consequence of the higher pressure prevailing therein, to be drained to a third zone located between the two firstmentioned zones at that discharge ends of the rotor channels in the regenerating zone, and, causing the last-mentioned gas to be sucked back to the main flow of gas at one end of said regenerating zone, together with cooling gas passing into this third zone from said drying zone.
Claim 4
Dependent Claim
43 words
A method according to claim 2, wherein said leakage and cooling gas is returned to the main flow of gas by means of an ejector, and using the hot compressor gas, before it has been fed into the condenser, to drive said ejector.
Claim 5
Dependent Claim
32 words
A method according to claim 2, including providing said cooling gas by taking it from the main flow of gas from the compressor after said flow of gas has passed the condenser.
Claim 6
Dependent Claim
31 words
A method according to claim 3, wherein the hot compressor gas is used to drive the ejector after the gas has passed through the regenerating zone rather than before passing therethrough.
Claim 7
Dependent Claim
30 words
A method according to claim 4, wherein part of said cooling gas is taken from the main flow of gas after said flow of gas has passed said drying zone.
Claim 8
Dependent Claim
121 words
A regenerative drier device for treating a hot, compressed gas from a compressor, comprising a housing having an inlet and an outlet, a rotor rotatably mounted in said housing and having therethrough a plurality of axially extending channels, and being composed of a substance having hygroscopic properties, means in said housing dividing the space occupied by said rotor into a regenerating zone containing certain of the channels in said rotor, and drying zone containing certain others of said channels, a condenser in said housing, and means for conveying substantially all the hot gas from said compressor successively from said inlet through the rotor channels in said regenerating zone, said condenser, and the rotor channels in said drying zone to said outlet.
Claim 9
Dependent Claim
121 words
A regenerative drier device for treating a hot, compressed gas from a compressor, comprising a housing having an inlet and an outlet, a rotor rotatably mounted in said housing and having therethrough a plurality of axially extending channels, and being composed of a substance having hygroscopic properties, means in said housing dividing the space occupied by said rotor into a regenerating zone containing certain of the channels in said rotor, and drying zone containing certain others of said channels, a condenser in said housing, and means for conveying substantially all the hot gas from said compressor successively from said inlet through the rotor channels in said regenerating zone, said condenser, and the rotor channels in said drying zone to said outlet.
Claim 10
Dependent Claim
89 words
A regenerative dryer device as defined in claim 7, including means defining a cooling zone at one end of said rotor between said regenerating and said drying zones, ejector means connecting said cooling zone to said conveying means, whereby the flow of hot gas in said conveying means draws gas from said cooling zone to lower the pressure therein to a value less than in the other two zones, and means connecting said cooling zone to the edges of said regenerating zone to collect any hot gases escaping therefrom.
References Cited (Backward Citations)
US2115226A
Cited
US3121000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |