Patent US3656295A successfully refreshed from Google Patents.
US3656295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device for a vehicle utilizing a hot-gas engine
Assignee: US Philips Corp
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Filing: 1970-05-27
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Granted: 1972-04-18
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Expires: 1990-05-27
Abstract
Abstract A hot-gas engine having a system for heating a fluid such as water with heat from some of the air that is pre-heated for combustion in the engine''s burner, the fluid providing heat via a heat exchanger to the atmosphere.
Inventors
- 👤 Herman Fokker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:01
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/02; B60H1/14; F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/053; F02G1/055
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
In a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, this second passage including an outlet communicating with the burner inlet, the improvement in combination therewith of an auxiliary heating system comprising, first duct means for containing a heat-exchange fluid, means for circulating fluid in said duct means, a heat exchanger, second duct means communicating air from said pre-heater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas.
Claim 2
Dependent Claim
104 words
In a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, this second passage including an outlet communicating with the burner inlet, the improvement in combination therewith of an auxiliary heating system comprising, first duct means for containing a heat-exchange fluid, means for circulating fluid in said duct means, a heat exchanger, second duct means communicating air from said pre-heater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas.
Claim 3
Dependent Claim
104 words
A heating device for use with vehicles driven by a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, this second passage including an outlet communicating with the burner inlet, the heating device comprising, first duct means for containing a heat-exchange fluid, means for circulating fluid in said duct means, a heat-exchanger, second duct means communicating air from said pre-heater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas.
Claim 4
Dependent Claim
104 words
A heating device for use with vehicles driven by a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, this second passage including an outlet communicating with the burner inlet, the heating device comprising, first duct means for containing a heat-exchange fluid, means for circulating fluid in said duct means, a heat-exchanger, second duct means communicating air from said pre-heater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas.
Claim 5
Dependent Claim
124 words
In a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, This second passage including an outlet communicating with the burner inlet, the improvement in combination therewith of an auxiliary heating system comprising, first duct means for containing water as a heat-exchange fluid, means for circulating the fluid in said first duct means, a heat-exchanger, second duct means communicating air from said preheater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas, and a second heat-exchanger for heat transfer from said fluid to atmosphere adjacent said first duct means.
Claim 6
Dependent Claim
124 words
In a hot-gas engine including a burner with an inlet for air and fuel and an outlet for exhaust gas, and a pre-heater including a first passage therethrough for said exhaust gas and a second passage for said air, This second passage including an outlet communicating with the burner inlet, the improvement in combination therewith of an auxiliary heating system comprising, first duct means for containing water as a heat-exchange fluid, means for circulating the fluid in said first duct means, a heat-exchanger, second duct means communicating air from said preheater outlet to said heat-exchanger, whereby said fluid is heatable from air heated by said exhaust gas, and a second heat-exchanger for heat transfer from said fluid to atmosphere adjacent said first duct means.
Claim 7
Dependent Claim
24 words
Apparatus according to claim 1 wherein said first duct means is a closed system and comprises means for controlling the circulation of fluid therethrough.
Claim 8
Dependent Claim
25 words
Apparatus according to claim 2 wherein said first duct means further comprises means for heat-exchange between said fluid and atmosphere adjacent said first duct means.
Claim 9
Dependent Claim
10 words
Apparatus according to claim 1 wherein said fluid is water.
Claim 10
Dependent Claim
10 words
Apparatus according to claim 2 wherein said fluid is water.
Claim 11
Dependent Claim
23 words
Apparatus according to claim 1, further comprising duct means for communicating heat air from said heat exchanger back to the pre-heater air inlet.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |