US3823573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive air conditioning apparatus
Assignee: Individual
•
Filing: 1973-03-16
•
Granted: 1974-07-16
•
Expires: 1993-03-16
Abstract
Abstract For use in an automotive air conditioning apparatus, a compressor device which functions with a typical condenser and evaporator wherein the gas from the evaporator is introduced to a double acting piston and cylinder arrangement exhausted by a check valved conduit which then delivers the refrigerant gas at an elevated pressure to a water jacket heat exchanger. Preferably, the heat exchanger utilized water in the cooling system of the vehicle. The refrigerant is then delivered to a double acting fluid pump motor which is connected to the first pump. The refrigerant which has been raised in enthalpy is introduced to the fluid pump motor which is connected by means of a piston rod to the pump previously mentioned. After energy is taken from the refrigerant by the fluid pump motor, it is then supplied by a conduit to a typical condenser for cooling to the liquid state for transfer to the evaporator to repeat the cooling cycle.
Inventors
- 👤 V Cassady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:33
CPC Classifications
F; F25; F25B; F25B27/00; F25B27/02; F04; F04B; F04B13/00; F04B13/02; F04B35/00; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02A30/274
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
206 words
A compressor for use with air conditioning systems typified by the sort found in automobiles which make available heated water as a heating medium, comprising: an inlet adapted to be connected to a source of uncompressed refrigerant gas; pump means connected to said inlet and having an outlet; heat exchanger means connected to said outlet for adding heat energy to compressed refrigerant from said pump means, said heat exchanger utilizing a heating medium at a specified elevated temperature; means for introducing a secondary flow of refrigerant into said heat exchanger which tends to convert the refrigerant flowing in said heat exchanger to a saturated vapor such that said heat exchanger adds sufficient heat content to said refrigerant flowing therein causing said refrigerant to emerge from said heat exchanger near or at a saturated vapor phase resulting in elevated pressure or temperature; and, second pump means having a power outlet which is connected to said first pump means to impart power for operation thereto, said second pump means being connected to said heat exchanger means for receiving the refrigerant from said heat exchanger which pump means incorporates an outlet through which refrigerant flows at a reduced pressure compared to the pressure level emerging from said heat exchanger.
Claim 2
Dependent Claim
206 words
A compressor for use with air conditioning systems typified by the sort found in automobiles which make available heated water as a heating medium, comprising: an inlet adapted to be connected to a source of uncompressed refrigerant gas; pump means connected to said inlet and having an outlet; heat exchanger means connected to said outlet for adding heat energy to compressed refrigerant from said pump means, said heat exchanger utilizing a heating medium at a specified elevated temperature; means for introducing a secondary flow of refrigerant into said heat exchanger which tends to convert the refrigerant flowing in said heat exchanger to a saturated vapor such that said heat exchanger adds sufficient heat content to said refrigerant flowing therein causing said refrigerant to emerge from said heat exchanger near or at a saturated vapor phase resulting in elevated pressure or temperature; and, second pump means having a power outlet which is connected to said first pump means to impart power for operation thereto, said second pump means being connected to said heat exchanger means for receiving the refrigerant from said heat exchanger which pump means incorporates an outlet through which refrigerant flows at a reduced pressure compared to the pressure level emerging from said heat exchanger.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1 wherein said first and second pump means are assembled in a single housing to comprise a sealed unit.
Claim 4
Dependent Claim
46 words
The apparatus of claim 1 wherein said pump means has a cylinder closed at both ends; a piston therein; check valves opening into both ends from said inlet; and, additional check valves opening from both ends to an outlet line connected to said heat exchanger means.
Claim 5
Dependent Claim
25 words
The apparatus of claim 3 wherein said pump means is double acting and said valves intake at one end while expelling at the other end.
Claim 6
Dependent Claim
41 words
The apparatus of claim 1 wherein said second pump means has a cylinder closed at both ends; a piston in said cylinder; valves opening into both ends from said heat exchanger means; additional valves opening from both ends to said outleT.
Claim 7
Dependent Claim
28 words
The apparatus of claim 5 wherein said second pump means is double acting and said valves cooperatively intake at one end while expelling refrigerant at the other end.
Claim 8
Dependent Claim
30 words
The apparatus of claim 5 including a piston rod connected to said piston and to a piston in said pump means which causes said pump means to operate in unison.
Claim 9
Dependent Claim
39 words
The apparatus of claim 7 including a third pump means operated by said piston rod and which has an inlet connected to a source of liquid refrigerant and an outlet connected to deliver refrigerant downstream of said pump means.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |