Nozzle for mixing flowable reaction components

Details Nozzle for mixing flowable reaction components Nozzle for mixing flowable reaction components

1984-08-23

1988-06-07

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Organic polymerization

425543, 425564, B29C 4503, B29C 4520

Patent

active

047495545

ABSTRACT:
The invention relates to a nozzle for mixing at least two flowable (and in particular foam-forming) reaction components comprising a housing; component supply pipes leading into the housing; a housing bore arranged in the housing having a coaxial outlet channel in its end face; at least one needle casing arranged coaxially in the housing bore; an injection needle guided coaxially in the needle casing; a first chamber arranged between the wall of the housing bore and the needle casing with one of the component supply pipes opening into said first chamber; a second chamber arranged between the needle casing and the injection needle, with another component supply pipe opening into said second chamber; wherein in the closed state, said injection needle forms a tight fit with the internal end face of the needle casing, and the external end face of said needle casing forms a tight fit with the internal end face of the housing bore; and wherein in the open state, said injection needle frees a coaxial nozzle opening of the needle casing and an opening is formed between the external end face of the needle casing and the internal end face of housing bore.

REFERENCES:
patent: 1881359 (1932-10-01), Jones
patent: 3771963 (1973-11-01), Breer et al.
patent: 3913892 (1975-10-01), Ersfeld et al.
patent: 3947177 (1976-03-01), Eckardt
patent: 4003501 (1977-01-01), Ramazzotti et al.
patent: 4013391 (1977-03-01), Boden et al.
patent: 4095931 (1978-06-01), Reitan
patent: 4188356 (1980-02-01), Weber et al.
patent: 4314955 (1982-02-01), Boden et al.
patent: 4333608 (1982-06-01), Hendry
patent: 4452917 (1984-06-01), Proksa et al.

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