Patent US3907199A successfully refreshed from Google Patents.
US3907199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination engine cooling system and passenger compartment heating system for an automotive vehicle
Assignee: Ford Motor Co
•
Filing: 1974-11-18
•
Granted: 1975-09-23
•
Expires: 1994-11-18
Abstract
Abstract A combination engine cooling and passenger compartment heating system for an automotive vehicle, particularly suited for use with a Stirling engine. The system includes engine coolant temperature control means which permits the coolant temperature to rise to a predetermined magnitude as quickly as possible and maintains the coolant at that temperature. The control means also permits selective apportionment of engine coolant between the radiator and the heater to regulate the heat to the automobile passenger compartment and to lower the coolant temperature whenever possible. The preferred embodiment includes a control valve having a first thermostatic power source responsive to coolant temperature and a second thermostatic power source responsive to the vehicle operator or a signal other than the coolant temperature.
Inventors
- 👤 Thomas C Kreger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:16
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; F01P7/167; B; B60; B60H; B60H1/00; B60H1/00485; B60K; B60K11/00; B60K11/02; F01P2070/00; F01P2070/04; F02; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
272 words
In an automotive vehicle having a liquid cooled engine, a combination passenger compartment heating and engine cooling system comprising a passenger compartment heater, a radiator, a flow control valve having an inlet and first and second outlets, first liquid conduit means conducting liquid from the engine to the valve inlet, second liquid conduit means connecting in series said first outlet of said valve and said radiator and said engine, third liquid conduit means connecting in series said second outlet of said valve and said heater and said engine, said flow control valve including a housing, said inlet and said first and second outlets being formed in said housing, movable means constructed to move from a first extreme position blocking said first outlet from said inlet and connecting said second outlet and said inlet to a second extreme position blocking said second outlet from said inlet and connecting said first outlet and said inlet, first motor means comprising a temperature responsive power member connected to said movable means and constructed to displace said movable means from said first extreme position a first predetermined amount to a position intermediate said first extreme position and said second extreme position in response to an increase in coolant temperature, second motor means constructed to displace said movable means a second predetermined amount toward said second extreme position in response to a signal external to said engine, said first motor means and said second motor means being positioned in series, displacement of said movable means said first predetermined distance and said second predetermined distanCe from said first extreme position placing said movable means in said second extreme position.
Claim 2
Dependent Claim
272 words
In an automotive vehicle having a liquid cooled engine, a combination passenger compartment heating and engine cooling system comprising a passenger compartment heater, a radiator, a flow control valve having an inlet and first and second outlets, first liquid conduit means conducting liquid from the engine to the valve inlet, second liquid conduit means connecting in series said first outlet of said valve and said radiator and said engine, third liquid conduit means connecting in series said second outlet of said valve and said heater and said engine, said flow control valve including a housing, said inlet and said first and second outlets being formed in said housing, movable means constructed to move from a first extreme position blocking said first outlet from said inlet and connecting said second outlet and said inlet to a second extreme position blocking said second outlet from said inlet and connecting said first outlet and said inlet, first motor means comprising a temperature responsive power member connected to said movable means and constructed to displace said movable means from said first extreme position a first predetermined amount to a position intermediate said first extreme position and said second extreme position in response to an increase in coolant temperature, second motor means constructed to displace said movable means a second predetermined amount toward said second extreme position in response to a signal external to said engine, said first motor means and said second motor means being positioned in series, displacement of said movable means said first predetermined distance and said second predetermined distanCe from said first extreme position placing said movable means in said second extreme position.
Claim 3
Dependent Claim
27 words
The combination of claim 1, said movable means comprising a piston, a cylindrical bore formed in said housing, said piston being slidably received in said cylindrical bore.
Claim 4
Dependent Claim
55 words
The combination of claim 2, said inlet opening into one end of said cylindrical bore, first passage means opening from said cylindrical bore and communicating said cylindrical bore and said first outlet, second passage means opening on said cylindrical bore at an axial position intermediate the opening to said first passage means and said inlet.
Claim 5
Dependent Claim
84 words
The combination of claim 1, mounting means to slidably mount said first motor means within said housing for movement in the axial direction of said cylinder bore, spring means biasing said first motor means to a normal position relative to said housing, said motor means being displaceable away from said normal position relative to said housing toward said inlet, said second motor means being engageable with said first motor means to displace said first motor means and said movable means relative to said housing.
Claim 6
Dependent Claim
23 words
The combination of claim 4, said first and second motor means having a plunger elements displaceable along the axis of said cylindrical bore.
Claim 7
Dependent Claim
64 words
The combination of claim 4, a second bore coaxial with said cylindrical bore having a smaller diameter than said cylindrical bore and joining said cylindrical bore at the end opposite said inlet, said mounting means comprising a second piston slidingly received within said second bore, said spring means biasing said second piston against the end of said second bore and away from said inlet.
Claim 8
Dependent Claim
21 words
The combination of claim 3, said first motor means including a temperature sensing portion in communication with said second passage means.
Claim 9
Dependent Claim
46 words
The combination of claim 1, said second motor means comprising a second temperature responsive power member, a resistance heater mounted on said power member, an electrical circuit including said resistance heater, a source of electrical current and control means to regulate current flow in said circuit.
Claim 10
Dependent Claim
50 words
The combination of claim 6, an annular shoulder formed in said housing by the junction of said cylindrical bore and said second bore, passage means formed in said piston communicating one axial side of the piston with the other, said piston engaging said shoulder when in said first extreme position.
References Cited (Backward Citations)
US2408269A
Cited
US2425439A
Cited
US2754062A
Cited
US2988280A
Cited
US3313483A
Cited
US3741477A
Cited
US3851629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |