Control valve of exhaust gas recirculation apparatus

Details Control valve of exhaust gas recirculation apparatus Control valve of exhaust gas recirculation apparatus

1982-01-28

1985-02-05

Walton, George L.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

123568, 137375, 251 615, B08B 904, F16K 5100

Patent

active

044973357

ABSTRACT:
A control valve for an exhaust gas recirculation apparatus for leading part of the exhaust gas from an exhaust line to a suction line. This control valve comprises a throttling member provided in the passage for recirculating exhaust gas, and a valve body the opens and closes the passage of the throttling member. The hole provided in the base of the throttling member has an inside diameter smaller than the hole of the throttling portion. The end portion of the valve body has an outside diameter a little smaller than the inside diameter of the hole of the throttling member, and the length of this end portion in the axial direction is selected so as to allow at least its end to pass the base of the throttling member when the large diameter portion of the valve body is in contact with the base. The thickness of the base of the throttling member in the axial direction is sufficiently smaller than the inside diameter of the hole of the base.

REFERENCES:
patent: 1001111 (1911-08-01), Wood
patent: 1838706 (1931-12-01), Rogers
patent: 2881783 (1959-04-01), Andrews
patent: 3552426 (1971-01-01), Hester
patent: 3888222 (1975-06-01), Tomita
patent: 4044737 (1977-08-01), Nishimura
patent: 4052969 (1977-10-01), Ando et al.
patent: 4120480 (1978-10-01), Ando et al.
patent: 4128109 (1978-12-01), Chervenak et al.
patent: 4349003 (1982-09-01), Masuda

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