Patent US4064848A successfully refreshed from Google Patents.
US4064848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalization tank for cooling liquid
Assignee: Daimler Benz AG
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Filing: 1975-08-01
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Granted: 1977-12-27
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Expires: 1995-08-01
Abstract
Abstract An equalization tank for a cooling liquid which is subdivided by an essentially perpendicularly disposed interior partition wall into a prechamber and into a suction-discharge chamber; the vent lines which are connected with the cooling water outlet of the cooling water jacket of the engine and with the heat-exchanger thereby terminate in the prechamber whereas the auxiliary return line leading to the circulation pump for the cooling liquid terminates in the suction-discharge chamber; the partition wall is thereby also provided with a connection located near the tank bottom for cooling liquid, low in air or gas bubbles, as also with a vent connection between the prechamber and the suction-discharge chamber which is located near the tank ceiling.
Inventors
- 👤 Rolf Pabst
- 👤 Siegfried Jenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:35
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; F01P11/028; F01P11/029
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
253 words
An equalization tank for a cooling liquid which on its inlet side is adapted to be connected with at least two vent lines and on its discharge side with at least one auxiliary return line, characterized in that an interior generally upright partition wall means provides a subdivision of the equalization tank into a prechamber means and into a suction-off chamber means, the vent lines terminating in the prechamber means and the auxiliary return line in the suction chamber means, and the partition wall means being provided with a connection means located near the tank bottom for cooling liquid low in gas bubbles and with a vent connection means located near the tank ceiling between the prechamber means and the suction chamber means, a fill-in pipe connection for cooling liquid, in which the vent line adapted to be connected with the heat-exchanger means is connected with the fill-in pipe connection, the fill-in pipe connection terminating in the prechamber means, a pressure equalization valve means being interconnected between the tank interior space and the atmosphere, the pressure equalization valve means being connected with the suction-off chamber means, a shielding means being arranged above the opening of the auxiliary return flow line terminating in the suction-off chamber means, the shielding means being inclined to the horizontal plane and being provided in its upper portion with a vent connection means between the section of the suction-off chamber means located on its bottom side and the section of the suction-off chamber means located on its top side.
Claim 2
Dependent Claim
253 words
An equalization tank for a cooling liquid which on its inlet side is adapted to be connected with at least two vent lines and on its discharge side with at least one auxiliary return line, characterized in that an interior generally upright partition wall means provides a subdivision of the equalization tank into a prechamber means and into a suction-off chamber means, the vent lines terminating in the prechamber means and the auxiliary return line in the suction chamber means, and the partition wall means being provided with a connection means located near the tank bottom for cooling liquid low in gas bubbles and with a vent connection means located near the tank ceiling between the prechamber means and the suction chamber means, a fill-in pipe connection for cooling liquid, in which the vent line adapted to be connected with the heat-exchanger means is connected with the fill-in pipe connection, the fill-in pipe connection terminating in the prechamber means, a pressure equalization valve means being interconnected between the tank interior space and the atmosphere, the pressure equalization valve means being connected with the suction-off chamber means, a shielding means being arranged above the opening of the auxiliary return flow line terminating in the suction-off chamber means, the shielding means being inclined to the horizontal plane and being provided in its upper portion with a vent connection means between the section of the suction-off chamber means located on its bottom side and the section of the suction-off chamber means located on its top side.
Claim 3
Dependent Claim
49 words
An equalization tank according to claim 1, characterized in that the partition wall means is provided with a third connection means for cooling liquid enriched with bubbles between the prechamber means and the suction-off chamber means, said third connection means being located geodetically between the two first-mentioned connection means.
Claim 4
Dependent Claim
35 words
An equalization tank according to claim 2, characterized in that the opening of the third connection means which terminates in the suction chamber means is provided with a guide means that is obliquely upwardly inclined.
Claim 5
Dependent Claim
116 words
An equalization tank according to claim 3, in which the equalization tank is adapted to be connected with a main circulatory system for the cooling water of an internal combustion engine connecting the cooling water inlet as also the cooling water outlet of a cooling water jacket of an internal combustion engine with a heat-exchanger means in such a manner that one of the vent lines is continuously in communication as engine operational vent line with the cooling water outlet of the cooling water jacket whereas the other vent line is in communication with the heat-exchanger means and the auxiliary return line is in continuous communication with the cooling water inlet of the cooling water jacket.
Claim 6
Dependent Claim
190 words
An equalization tank for a cooling liquid which on its inlet side is adapted to be connected with at least two vent lines and on its discharge side with at least one auxiliary return line, characterized in that an interior generally upright partition wall means provides a subdivision of the equalization tank into a prechamber means and into a suction-off chamber means, the vent lines terminating in the prechamber means and the auxiliary return line in the suction chamber means, and the partition wall means being provided with a connection means located near the tank bottom for cooling liquid low in gas bubbles and with a vent connection means located near the tank ceiling between the prechamber means and the suction chamber means, a shielding means being arranged above the opening of the auxiliary return flow line terminating in the suction-off chamber means, the shielding means being inclined to the horizontal plane and being provided in its upper portion with a vent connection means between the section of the suction-ff chamber means located on its bottom side and the section of the suction-off chamber means located on its top side.
Claim 7
Dependent Claim
190 words
An equalization tank for a cooling liquid which on its inlet side is adapted to be connected with at least two vent lines and on its discharge side with at least one auxiliary return line, characterized in that an interior generally upright partition wall means provides a subdivision of the equalization tank into a prechamber means and into a suction-off chamber means, the vent lines terminating in the prechamber means and the auxiliary return line in the suction chamber means, and the partition wall means being provided with a connection means located near the tank bottom for cooling liquid low in gas bubbles and with a vent connection means located near the tank ceiling between the prechamber means and the suction chamber means, a shielding means being arranged above the opening of the auxiliary return flow line terminating in the suction-off chamber means, the shielding means being inclined to the horizontal plane and being provided in its upper portion with a vent connection means between the section of the suction-ff chamber means located on its bottom side and the section of the suction-off chamber means located on its top side.
Claim 8
Dependent Claim
236 words
An equalization tank for volume equalization and air separation of a liquid heat carrier flowing through a circulating system, especially for a circulatory system for combustion engine cooling spaces and the like, comprising: separation chamber means, air chamber space means arranged above said separation chamber means, venting means communicating the air chamber space means and the separation chamber means for accommodating escape of entrapped air from the liquid flowing through the separation chamber means to the air chamber space means, the separation chamber means being constructed and arranged to form liquid-air separating means and including a plurality of separate separation chambers, a first of the separation chambers including an inlet portion coupled with a separation flow entrance leading from the circulating system and an outlet portion coupled direcly with a second of the separation chambers, the outlet portion being constructed and arranged to permit passage therethrough of at least a substantial portion of the flow of liquid through the first separation chamber to the second separation chamber, the outlet portion being provided with a connection means for liquid enriched with bubbles between the first separation chamber and the second separation chamber and a connection means for liquid low in bubbles between the first separation chamber and the second separation chamber, the connection means for liquid enriched with bubbles being located geodetically between the connection means for liquid low in bubbles and the air chamber space means.
Claim 9
Dependent Claim
236 words
An equalization tank for volume equalization and air separation of a liquid heat carrier flowing through a circulating system, especially for a circulatory system for combustion engine cooling spaces and the like, comprising: separation chamber means, air chamber space means arranged above said separation chamber means, venting means communicating the air chamber space means and the separation chamber means for accommodating escape of entrapped air from the liquid flowing through the separation chamber means to the air chamber space means, the separation chamber means being constructed and arranged to form liquid-air separating means and including a plurality of separate separation chambers, a first of the separation chambers including an inlet portion coupled with a separation flow entrance leading from the circulating system and an outlet portion coupled direcly with a second of the separation chambers, the outlet portion being constructed and arranged to permit passage therethrough of at least a substantial portion of the flow of liquid through the first separation chamber to the second separation chamber, the outlet portion being provided with a connection means for liquid enriched with bubbles between the first separation chamber and the second separation chamber and a connection means for liquid low in bubbles between the first separation chamber and the second separation chamber, the connection means for liquid enriched with bubbles being located geodetically between the connection means for liquid low in bubbles and the air chamber space means.
Claim 10
Dependent Claim
39 words
An equalization tank according to claim 6, characterized in that the opening of the connection means for liquid enriched with bubbles which terminates in the second separation chamber is provided with a guide means that is obliquely upwardly inclined.
Claim 11
Dependent Claim
19 words
An equalization tank according to claim 7, characterized in that the guide means is a sheet metal guide member.
Claim 12
Dependent Claim
42 words
An equalization tank according to claim 6, with a fill-in pipe connection for liquid, characterized in that the fill-in pipe connection is provided with a coupling means for coupling the inlet portion of the first separation chamber with the separation flow entrance.
Claim 13
Dependent Claim
37 words
An equalization tank according to claim 9, with a pressure equalization valve means interconnected between the tank interior space and the atmosphere, characterized in that the pressure equalization valve means is connected with the second separation chamber.
Claim 14
Dependent Claim
80 words
An equalization tank according to claim 10, with another outlet portion coupled with a separation flow outlet leading to the circulating system and an opening of the another outlet portion terminating in the second separation chamber, characterized in that a shielding means is arranged relative to the direction of flow between the opening of the another outlet portion and the connection means for liquid enriched with bubbles to prevent the flow of liquid enriched with bubbles to the circulating system.
Claim 15
Dependent Claim
19 words
An equalization tank according to claim 11, characterized in that the shielding means is a shielding sheet metal member.
Claim 16
Dependent Claim
130 words
An equalization tank according to claim 9, in which the equalization tank is adapted to be connected with a main circulatory system for the cooling water of an internal combustion engine connecting the cooling water inlet as also the cooling water outlet of a cooling water jacket of an internal combustion engine with a heat-exchanger means in such a manner that a vent line coupled directly with the first separation chamber is continuously in communication as engine operational vent line with the cooling water outlet of the cooling water jacket whereas another vent line coupled with the connection means of the fill-in pipe connection is in communication with the heat-exchanger means and the separation flow outlet is in continuous communication with the cooling water inlet of the cooling water jacket.
Claim 17
Dependent Claim
38 words
An equalization tank according to claim 6, with a pressure equalization valve means interconnected between the tank interior space and the atmosphere, characterized in that the pressure equalization valve means is connected with the second separation chamber means.
Claim 18
Dependent Claim
80 words
An equalization tank according to claim 6, with another outlet portion coupled with a separation flow outlet leading to the circulating system and an opening of the another outlet portion terminating in the second separation chamber, characterized in that a shielding means is arranged relative to the direction of flow between the opening of the another outlet portion and the connection means for liquid enriched with bubbles to prevent the flow of liquid enriched with bubbles to the circulating system.
Claim 19
Dependent Claim
57 words
An equalization tank according to claim 15, characterized in that the shielding means is inclined to the horizontal plane and is provided in its upper portion with a bent connection means between the section of the second separation chamber located on its bottom side and the section of the second separation chamber located on its top side.
Claim 20
Dependent Claim
19 words
An equalization tank according to claim 16, characterized in that the shielding means is a shielding sheet metal member.
Claim 21
Dependent Claim
39 words
An equalization tank according to claim 16, characterized in that the opening of the connection means for liquid enriched with bubbles which terminates in the second separation chamber is provided with a guide means that is obliquely upwardly inclined.
Claim 22
Dependent Claim
19 words
An equalization tank according to claim 18, characterized in that the guide means is a sheet metal guide member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |