Flow control device and hot-water type heating apparatus employi

Details Flow control device and hot-water type heating apparatus employi Flow control device and hot-water type heating apparatus employi

1997-04-11

1998-08-18

Bennett, Henry A.

Heating systems

Heat and power plants

Vehicle

237 2A, 237 8R, 237 56, B60H 102

Patent

active

057948453

ABSTRACT:
A plurality of flow control valves is correspondingly provided to a plurality of heater core portions. Each of the flow control valves is provided with a first restriction portion formed in an inlet for receiving hot water, a second restriction portion in an outlet for introducing hot water to the respective heating heat exchange portions, and a bypass opening opened at an intermediate pressure portion between the first restriction portion and the second restriction portion. Each opening area of the first restriction portion, the second restriction portion, and the bypass openings is regulated by a cylindrical valve. The first and second restriction portions, the bypass openings and the valve bodies are accommodated within a common housing, and a bypass passage communicating with the bypass openings is formed in the common housing.

REFERENCES:
patent: 4300720 (1981-11-01), Baier et al.
patent: 4905893 (1990-03-01), Kiskis
patent: 5273105 (1993-12-01), Higashihara et al.
patent: 5566881 (1996-10-01), Inoue et al.

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