The present invention is a condensate drain pump for an air conditioner.

A flush system may include flush pump, flush valve and may be responsive to a characteristic of a fluid in a line.

An acoustic liner (102) is disposed between said cover member (104) and the pump body of the drain pump, in substantial correspondence with the cover member (104) and exclusively of the pump motor.

The drain pump is adapted to remove dishwashing fluid from a sump of the dishwasher.

The planetary gear mechanism transmits drive force from the motor shaft gear to the buffer purge pump or the suction pump in accordance with rotational direction.

A planetary gear mechanism is assembled into a pump unit frame with an ink supply pump, a buffer purge pump, a suction pump, a motor shaft gear, and a wiper member.

The buffer purge pump and the suction pump are configured to be selectively driven by switching rotational direction of a motor having the motor shaft gear.

The acoustic liner (102) is configured to further reduce transmission therethrough of noise generated by the pump mechanism during operation of the drain pump.

A purge pump (95) is responsive to fault signals, including the steam fault signal, to pump water (34) from the evaporation chamber (24).

A purge and prime assembly for a carburetor includes a purge and prime pump that alternately takes in and discharges fluid, and a plurality of passages through which fluid is routed.

The buffer purge pump and the wiper member are selectively driven by the rotations of the motor rotating in the same direction in phase-dependent on the rotations of the motor.

Any air or bubbles that have accumulated at the upper portion of the buffer tank can be discharged to the sub-tank by the pumping operation of a buffer purge pump disposed in the second ink channel.

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The purge pump primer is designed in a way that the operator cannot flood the machine by priming the carburetor too many times.

Another air pump (64) applies air pressure to the purge reservoir.