US3885126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heat accumulator unit
Assignee: Nissan Motor Co Ltd
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Filing: 1973-06-06
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Granted: 1975-05-20
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Expires: 1993-06-06
Abstract
Abstract An electric heat accumulator unit for use in an electrically powered motor vehicle characterized in that the unit is powered independently of the battery used to power the vehicle. The unit makes use of an accumulator which is adapted to store therein heat generated by an electric heating means operatively associated with the accumulator and energized from an external power supply. A blower is provided to circulate air through passages in the accumulator for extraction of heat therefrom. A blower is provided to circulate air through passages in the accumulator for extraction of heat therefrom. The blower may be powered by means of a thermoelectric power source in heat exchange relationship with the accumulator. A voltage regulator is provided to maintain a constant voltage from the thermoelectric power source. A temperature responsive circuit varies the blower speed as the temperature of the accumulator changes in order to maintain a substantially constant thermal output from the accumulator.
Inventors
- 👤 Hiroshi Sugiyama
- 👤 Kiyoshi Numagami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:37
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00492; B60H1/0025; B60H1/22; B60H1/2215; B60H1/2225; F; F24; F24H; F24H7/00; F24H7/02; F24H7/04; F24H7/0408; F24H7/0416; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/24; H; H05; H05B; H05B3/00; H05B3/0019; B60H2001/2268; B60H2001/2275; F24D; F24D10/00; Y; Y02; Y02B; Y02B30/00; Y02B30/17
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
212 words
Heating equipment of the accumulator type installed in a motor vehicle which includes air inlet means, air outlet means, a heat accumulator having passage means for providing communication between said air inlet and outlet means, an electric heating means in heat exchange relation with said accumulator, said heat accumulator being operative to store therein heat from said heating means, valve means for regulating the area of air passage of said inlet and outlet means, and an electric blower for forcibly passing air from said air inlet means through said passage means to said air outlet means, which is characterized by: a thermoelectric device in heat exchange with said heat accumulator for converting thermal Energy in said heat accumulator into a d-c power; a constant voltage regulator connected to said thermoelectric device and supplying said d-c power to said blower, while maintaining the voltage of said power constant; and temperature-responsive current control means responsive to the temperature of said heat accumulator, said control means being connected in the circuit between said voltage regulator and said blower for regulating the magnitude of current flowing through said blower and thereby the blower speed in inversely proportionate relation to the temperature of said heat accumulator whereby a substantially constant thermal output is maintained from the accumulator.
Claim 2
Dependent Claim
212 words
Heating equipment of the accumulator type installed in a motor vehicle which includes air inlet means, air outlet means, a heat accumulator having passage means for providing communication between said air inlet and outlet means, an electric heating means in heat exchange relation with said accumulator, said heat accumulator being operative to store therein heat from said heating means, valve means for regulating the area of air passage of said inlet and outlet means, and an electric blower for forcibly passing air from said air inlet means through said passage means to said air outlet means, which is characterized by: a thermoelectric device in heat exchange with said heat accumulator for converting thermal Energy in said heat accumulator into a d-c power; a constant voltage regulator connected to said thermoelectric device and supplying said d-c power to said blower, while maintaining the voltage of said power constant; and temperature-responsive current control means responsive to the temperature of said heat accumulator, said control means being connected in the circuit between said voltage regulator and said blower for regulating the magnitude of current flowing through said blower and thereby the blower speed in inversely proportionate relation to the temperature of said heat accumulator whereby a substantially constant thermal output is maintained from the accumulator.
Claim 3
Dependent Claim
58 words
Heating equipment according to claim 1, in which said temperature responsive current control means includes a heat sensitive resistor embedded in said heat accumulator and energized at a constant voltage from said voltage regulator and an electric circuit for controlling the magnitude of the current through said blower in accordance with the resistance of said heat sensitive resistor.
References Cited (Backward Citations)
US2556498A
Cited
US3737620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |