Patent EP0059424A2 successfully refreshed from Google Patents.
EP0059424A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Heating apparatus for motor vehicles
Assignee: Nissan Motor Co Ltd
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Filing: 1982-02-24
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Granted: —
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Expires: 2002-02-24
Abstract
Abstract In a heating apparatus for motor vehicles, there is provided means for permitting part of air just heated by' heater means provided in the apparatus to be directed toward a region upstream of the heater means so as to be again heated by the heater means, thereby causing the temperature in the vehicle chamber to be rapidly elevated, while at the same time preventing the humidity therein from being increased.
Inventors
- 👤 Shigeru C/O Tsurumi Plant Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 02:28
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/00042; B60H1/00314; B60H2001/00078; B60H2001/00085; B60H2001/0015; B60H2001/00164
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A heating apparatus for motor vehicles, comprising: an air flow passage provided with a first and a second port which are adapted for taking in air from the vehicle compartment and for taking in air from outside the motor vehicle, respectively; a heater core disposed in said air flow passage; a blower disposed in said air flow passage; and heated air recirculation passage communicating with said air flow passage at a position upstream of said heater core and at a position downstream thereof, whereby part of an air flow passed through said heater core and heated thereby is recirculated to a region upstream of said heater core through said recirculation passage.
Claim 2
Dependent Claim
111 words
A heating apparatus for motor vehicles, comprising: an air flow passage provided with a first and a second port which are adapted for taking in air from the vehicle compartment and for taking in air from outside the motor vehicle, respectively; a heater core disposed in said air flow passage; a blower disposed in said air flow passage; and heated air recirculation passage communicating with said air flow passage at a position upstream of said heater core and at a position downstream thereof, whereby part of an air flow passed through said heater core and heated thereby is recirculated to a region upstream of said heater core through said recirculation passage.
Claim 3
Dependent Claim
56 words
A heating apparatus according to claim 1, further comprising means for controlling the quantity of heated air to be recirculated toward said heater core through said recirculation passage, in response to variations in the air pressure in said air flow passage which tend to be caused as the running speed of the motor vehicle is varied.
Claim 4
Dependent Claim
41 words
A heating apparatus according to claim 2, wherein said control means comprises a control door swingably provided in said air flow passage at said position upstream of said heater core where said recirculation passage is communicated with said air flow passage.
Claim 5
Dependent Claim
31 words
A heating apparatus according to any of the preceding claims, wherein said recirculation passage has the opposite end portions thereof directed in opposite directions in opposing relationship to said heater core.
Claim 6
Dependent Claim
39 words
A heating apparatus according to claim 4, wherein that one of the end portions of said air recirculation passage which is located at the position upstream of said heater means is constructed in the form of a convergent nozzle.
References Cited (Backward Citations)
No citation records indexed.
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