초록 ▼

An explosion relief valve for a confined space, more particularly for the crankcase of an internal combustion engine, includes a seat (1) which may be fitted into a boundary wall (3) of the space to be protected, a spring-loaded closure plate (4) cooperating with the valve seat, at least one flame b

An explosion relief valve for a confined space, more particularly for the crankcase of an internal combustion engine, includes a seat (1) which may be fitted into a boundary wall (3) of the space to be protected, a spring-loaded closure plate (4) cooperating with the valve seat, at least one flame barrier (9) having low pressure resistance in the gas path leading through the valve, preferably consisting of sheet-metal strips stacked one above another transversely to the throughflow direction of the gas, which sheet-metal strips are provided preferably at least over part of their width with irregular corrugations, and at least one other perforated wall (11, 12) in the gas path of expanded metal.

대표청구항 ▼

1. An explosion relief valve for a confined space, comprising:a valve seat which may be fitted onto a boundary wall of the confined space, a cover plate, attachment means extending between said cover plate and said valve seat for positioning said cover plate in spaced relation to said valve seat and

1. An explosion relief valve for a confined space, comprising:a valve seat which may be fitted onto a boundary wall of the confined space, a cover plate, attachment means extending between said cover plate and said valve seat for positioning said cover plate in spaced relation to said valve seat and defining a gas path through said valve, a spring-loaded closure plate located between said cover plate and said valve seat for cooperating with the valve seat, at least one flame barrier having low pressure resistance installed between said cover plate and said valve seat and in said gas path, and at least one other perforated wall of expanded metal installed between said cover plate and said valve seat and in said gas path, said at least one flame barrier and perforated wall both being positioned downstream of the valve seat.