US3590960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake fluid cooling arrangement
Assignee: Motors Liquidation Co
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Filing: 1969-06-02
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Granted: 1971-07-06
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Expires: 1989-06-02
Abstract
Abstract Fluid cooled brake cooling systems in each of which a plurality of vehicle wheel brakes are connected in series in a cooling circuit. In each system disclosed the circuit includes a pump driven by one of the wheels. In one embodiment the pump moves cooling fluid through a ballast tank, another wheel brake, a heat exchanger, and a cooling fluid reservoir. The fluid from the reservoir is returned to the wheel brake having the pump as a part of the brake assembly. In another embodiment, the pump driven by one of the wheels having a first brake to be cooled moves heated fluid from the first brake through a heat exchanger which cools the fluid, to a second wheel brake to be cooled where the fluid receives heat, then through the heat exchanger to again cool the fluid, after which this cooled fluid is returned to the brake with the pump. A cooling fluid reservoir is connected with the line connecting the pump output and the heat exchanger so that the reservoir can receive fluid from this point and a vent is provided. The reservoir outlet is connected at two points in the circulation system, these two points being between the two outlet points of the heat exchanger and the brake to which fluid flows from each outlet point. The wheel driven pump provides for circulation of cooling fluid through the entire system.
Inventors
- 👤 Donald W Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
172 words
A vehicle front wheel brake cooling system comprising: a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet, said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means permanently connecting said first and second wheel brakes and at least one portion of said container means and said cooler in a loop in uninterrupted continuous series fluid flow relation with said second wheel brake being fluidly intermediate at least one portion of said container means and the inlet side of said cooler, and said first wheel brake always being fluidly intermediate the at least one portion of said container means and the outlet side of said cooler, said pump, when driven continuously pumpiNg cooling fluid through all of said system.
Claim 2
Dependent Claim
172 words
A vehicle front wheel brake cooling system comprising: a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet, said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means permanently connecting said first and second wheel brakes and at least one portion of said container means and said cooler in a loop in uninterrupted continuous series fluid flow relation with said second wheel brake being fluidly intermediate at least one portion of said container means and the inlet side of said cooler, and said first wheel brake always being fluidly intermediate the at least one portion of said container means and the outlet side of said cooler, said pump, when driven continuously pumpiNg cooling fluid through all of said system.
Claim 3
Dependent Claim
35 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid container means including another portion providing a reservoir receiving cooled fluid from said cooler and delivering cooled fluid to said first wheel brake.
Claim 4
Dependent Claim
78 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid from said first wheel brake and delivering cooling fluid from said first wheel brake and delivering cooling fluid to said second wheel brake, said cooler being connected fluidly intermediate said wheel brakes, said ballast tank and said conduit means having a sufficient volume to prevent the recirculation to a braking brake of heated fluid which has been heated by a braking brake during a single stop.
Claim 5
Dependent Claim
53 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid container means including; a reservoir receiving cooling fluid from said cooler and delivering cooling fluid to said first wheel brake, and a ballast tank receiving cooling fluid from said first wheel brake and delivering cooling fluid to said second wheel brake.
Claim 6
Dependent Claim
158 words
A vehicle front wheel brake cooling system comprising; a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet and only said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means operatively and uninterruptedly fluid connecting the fluid inlet of said first wheel brake to the fluid outlet of said second wheel brake and the fluid outlet of said first wheel brake to the fluid inlet of said second wheel brake and said container means intermediate said wheel brakes, said conduit means further uninterruptedly fluid connecting said cooler to cool cooling fluid flowing from one of said wheel brakes to the other of said wheel brakes.
Claim 7
Dependent Claim
158 words
A vehicle front wheel brake cooling system comprising; a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet and only said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means operatively and uninterruptedly fluid connecting the fluid inlet of said first wheel brake to the fluid outlet of said second wheel brake and the fluid outlet of said first wheel brake to the fluid inlet of said second wheel brake and said container means intermediate said wheel brakes, said conduit means further uninterruptedly fluid connecting said cooler to cool cooling fluid flowing from one of said wheel brakes to the other of said wheel brakes.
Claim 8
Dependent Claim
31 words
The vehicle wheel brake cooling system of claim 5, said pump being driven by the front vehicle wheel that is nearer the center of the road in normal road driving conditions.
Claim 9
Dependent Claim
50 words
The vehicle wheel brake cooling system of claim 5, said cooler being the cold tank of the vehicle engine cooling system radiator whereby heat is transferred between brake cooling fluid and radiator coolant when a temperature differential exists between the brake cooling fluid and the radiator coolant at said cooler.
Claim 10
Dependent Claim
34 words
The vehicle wheel brake cooling system of claim 7, said system having a heat transfer capacity sufficient to overheat the radiator coolant before detrimental overheating of said wheel brakes and said brake cooling fluid.
Claim 11
Dependent Claim
35 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid container means including another portion providing a reservoir receiving cooled fluid from said cooler and delivering cooled fluid to said first wheel brake.
Claim 12
Dependent Claim
78 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid from said first wheel brake and delivering cooling fluid from said first wheel brake and delivering cooling fluid to said second wheel brake, said cooler being connected fluidly intermediate said wheel brakes, said ballast tank and said conduit means having a sufficient volume to prevent the recirculation to a braking brake of heated fluid which has been heated by a braking brake during a single stop.
Claim 13
Dependent Claim
53 words
The vehicle wheel brake cooling system of claim 1, said cooling fluid container means including; a reservoir receiving cooling fluid from said cooler and delivering cooling fluid to said first wheel brake, and a ballast tank receiving cooling fluid from said first wheel brake and delivering cooling fluid to said second wheel brake.
Claim 14
Dependent Claim
158 words
A vehicle front wheel brake cooling system comprising; a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet and only said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means operatively and uninterruptedly fluid connecting the fluid inlet of said first wheel brake to the fluid outlet of said second wheel brake and the fluid outlet of said first wheel brake to the fluid inlet of said second wheel brake and said container means intermediate said wheel brakes, said conduit means further uninterruptedly fluid connecting said cooler to cool cooling fluid flowing from one of said wheel brakes to the other of said wheel brakes.
Claim 15
Dependent Claim
158 words
A vehicle front wheel brake cooling system comprising; a first wheel brake to be cooled and a second wheel brake to be cooled, each of said wheel brakes having a cooling fluid inlet and a cooling fluid outlet and only said first wheel brake having a cooling fluid pump driven by rotation of the wheel with which said first wheel brake is associated, cooling fluid container means and a cooling fluid cooler positioned remotely from said wheel brakes, and cooling fluid conduit means operatively and uninterruptedly fluid connecting the fluid inlet of said first wheel brake to the fluid outlet of said second wheel brake and the fluid outlet of said first wheel brake to the fluid inlet of said second wheel brake and said container means intermediate said wheel brakes, said conduit means further uninterruptedly fluid connecting said cooler to cool cooling fluid flowing from one of said wheel brakes to the other of said wheel brakes.
Claim 16
Dependent Claim
31 words
The vehicle wheel brake cooling system of claim 5, said pump being driven by the front vehicle wheel that is nearer the center of the road in normal road driving conditions.
Claim 17
Dependent Claim
50 words
The vehicle wheel brake cooling system of claim 5, said cooler being the cold tank of the vehicle engine cooling system radiator whereby heat is transferred between brake cooling fluid and radiator coolant when a temperature differential exists between the brake cooling fluid and the radiator coolant at said cooler.
Claim 18
Dependent Claim
34 words
The vehicle wheel brake cooling system of claim 7, said system having a heat transfer capacity sufficient to overheat the radiator coolant before detrimental overheating of said wheel brakes and said brake cooling fluid.
Claim 19
Dependent Claim
46 words
The vehicle wheel brake cooling system of claim 5, said cooler being connected through said conduit means to cool fluid flowing from said first wheel brake to said second wheel brake and to cool fluid flowing from said second wheel brake to said first wheel brake.
Claim 20
Dependent Claim
152 words
The vehicle wheel brake cooling system of claim 9, said system further comprising: a cooling fluid reservoir having an inlet fluid conduit connected to the portion of said fluid conduit means connecting said first wheel brake to said cooler and at a high point in said portion so that said reservoir inlet fluid conduit also provides an air vent line and means through which cooling fluid can expand when heated, an outlet conduit connected to the portion of said fluid conduit means connecting said cooler to said second wheel brake, said outlet conduit also being connected to the portion of said fluid conduit means connecting said cooler to said first wheel brake, said outlet conduit connections to said fluid conduit means being substantially at pressure nodal points and sufficiently close to the pressure nodal points to prevent cavitation within said system within the operating speed range of the pump In the system.
Claim 21
Dependent Claim
113 words
In combination in a liquid cooled vehicle wheel brake system: a heat exchanger for cooling heated cooling liquid, a plurality of liquid cooled vehicle wheel brakes, a cooling liquid circulating pump, conduit means for conducting cooling liquid and connecting said heat exchanger and said liquid cooled vehicle wheel brakes and said pump in cooling liquid series flow relation, and a cooling liquid reservoir having cooling liquid inlet and outlet means fluid connected to said conduit means in series fluid flow relation with said pump and in parallel fluid flow relation with said heat exchanger and providing a partial bypass of said heat exchanger and a partial bypass of one of said wheel brakes.
Claim 22
Dependent Claim
113 words
In combination in a liquid cooled vehicle wheel brake system: a heat exchanger for cooling heated cooling liquid, a plurality of liquid cooled vehicle wheel brakes, a cooling liquid circulating pump, conduit means for conducting cooling liquid and connecting said heat exchanger and said liquid cooled vehicle wheel brakes and said pump in cooling liquid series flow relation, and a cooling liquid reservoir having cooling liquid inlet and outlet means fluid connected to said conduit means in series fluid flow relation with said pump and in parallel fluid flow relation with said heat exchanger and providing a partial bypass of said heat exchanger and a partial bypass of one of said wheel brakes.
Claim 23
Dependent Claim
62 words
In the liquid cooled vehicle wheel brake system of claim 11: said cooling liquid reservoir outlet means being connected to a section of said conduit means conducting liquid from said heat exchanger to another of said wheel brakes, and also being connected to another section of said conduit means conducting liquid from said heat exchanger to said one of said wheel brakes.
References Cited (Backward Citations)
CA624382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |