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Title:
COMBUSTION DEVICE
Document Type and Number:
Japanese Patent JPS57136019
Kind Code:
A
Abstract:

PURPOSE: To provide a combustion device with a return type nozzle which improves a relief valve installed to a return circuit, improves a cutoff capacity, and stabilizes a pressure control characteristic.

CONSTITUTION: In an electromagnetic relief valve, a set part 4b, made of synthetic resin or metal being harder than an elastic substance 4a, is secured to a lower position of a plunger 1 through the medium of the elastic substance 4a such as rubber. The constitution establishes a smooth relation between a current, applied to the relief valve, and a return pressure, to improve stability, and prevents the occurrence of a permanent deformation of the valve seat, which results in improving durability thereof.


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Inventors:
UEMATSU HIDEO
TANAHASHI TAKASHI
NATSUMEDA TAKESHI
YAMAMOTO KOUJI
Application Number:
JP2274681A
Publication Date:
August 21, 1982
Filing Date:
February 18, 1981
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F16K31/06; F23D11/28; F23K5/04; F23K5/14; (IPC1-7): F16K31/06; F23D11/28; F23K5/00



 
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