AUTOMATIC DRAIN VALVE - KIORITZ CORP

Title:

AUTOMATIC DRAIN VALVE

Document Type and Number:

Japanese Patent JP2003003965

Kind Code:

A

Abstract:

To provide an automatic drain valve automatically discharging air in a pump when it is started and a liquid from a discharge port when the pump is stopped.

This automatic drain valve, automatically discharging air in a pump when it is started and a liquid from the same discharge port when the pump is stopped, has a valve element arranged between a pump chamber arranged in the upstream and the discharge port arranged in the downstream and an energizing member for energizing this valve element to the upstream, and the drain valve is characterized by making the valve element communicate the pump chamber and the discharge port by forming a circulation path connected to the pump chamber, in a start position when the pump is started, and making the valve element move to the downstream against energizing force of the energizing member to interrupt a downstream communication path connected to the discharge port by a positive pressure in the pump chamber, in an operating position during operation of the pump.

Inventors:

NAKAYAMA YOSHIKI
KANEKO TOSHIAKI
TAKEDA KOICHI

Application Number:

JP2001191504A

Publication Date:

January 08, 2003

Filing Date:

June 25, 2001

Export Citation:

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Assignee:

KIORITZ CORP

International Classes:

F16K17/30; F04B53/10; F16K17/34; (IPC1-7): F04B53/10; F16K17/30; F16K17/34

Domestic Patent References:

JPS6182649U	1986-05-31
JPH0348200U	1991-05-08

Attorney, Agent or Firm:

Minoru Nakamura (10 outside)

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