Central vacuum cleaner apparatus

摘要

A central vacuum cleaner having a housing, a suction chamber, a suction motor at an upper end of the suction chamber, a suction motor inlet, a dirt receptacle, a suction chamber inlet into the suction chamber, and a filter bag between the suction chamber inlet and the suction motor inlet cover. The suction motor has an impeller axis and a suction motor inlet located on and surrounding the impeller axis. The suction motor inlet cover has a bottom wall on the impeller axis below the suction motor inlet, a sidewall extending upwards from the bottom wall and surrounding the suction motor inlet, an inlet chamber formed by the bottom wall and sidewall, and an inlet cover opening fluidly connecting the suction chamber to the inlet chamber. The inlet cover opening is offset from the impeller axis and faces at an upwards angle towards the upper end of the suction chamber.

主权项

1. A central vacuum cleaner comprising:
a main housing; a suction chamber located in the main housing; a suction motor connected to the main housing at an upper end of the suction chamber, the suction motor having an impeller axis and a downward-facing suction motor inlet located on and surrounding the impeller axis; a suction motor inlet cover comprising:
a bottom wall located on the impeller axis below the suction motor inlet,a sidewall extending upwards from the bottom wall and generally surrounding the suction motor inlet,an inlet chamber formed by the bottom wall and sidewall, the inlet chamber being located adjacent to and in fluid communication with the suction motor inlet, andan inlet cover opening fluidly connecting the suction chamber to the inlet chamber, the inlet cover opening being offset from the impeller axis and facing at an upwards angle towards the upper end of the suction chamber; a dirt receptacle connected to the suction chamber; a suction chamber inlet comprising a fluid passage through the main housing and into the suction chamber; and a filter bag located between the suction chamber inlet and the suction motor inlet cover.