High efficiency air conditioner condenser fan with performance enhancements

An improved air conditioner condenser or heat pump fan assembly with rotating blades attached to a hub mounted within a housing having reduced sound noise emissions, the improvement comprising:

• a porous member attached to at least one of the rotating blades and the housing. for reducing sound noise emissions from the housing and for increasing air flow from the rotating blades.

An improved air conditioner condenser or heat pump fan assembly with rotating blades attached to a hub mounted within a housing having reduced sound noise emissions, the improvement comprising:

• interior walls of the housing form a diffuser having an outwardly expanding convex curved, conical shape for reducing undesirable sound noise emissions from the housing.

An improved air conditioner condenser or heat pump fan assembly with rotating blades attached to a hub mounted within a housing having reduced sound noise emissions, the improvement comprising:

• a first control for rotating the blades at a first speed when a first temperature level is detected adjacent to the air conditioner condenser or the heat pump fan assembly;
• and
• a second control for increasing the rotating of the blades to a second speed higher than the first speed when a second temperature level is detected adjacent to the air conditioner condenser or the heat pump fan assembly that is higher than the first temperature level.

A method of reducing sound noise emissions from rotating blades of an outdoor air conditioner condenser/heat pump assembly, comprising the steps of:

• rotating the blades of the outdoor assembly at a first speed when a first temperature level is detected adjacent to the assembly;
• and
• increasing the rotating first speed of the blades to a second speed that is greater than the first speed when a second temperature level that is greater than the first temperature level is detected adjacent to the assembly.

A method for reducing sound noise emissions in an air conditioner condenser/heat pump fan assembly having rotating blades attached to a hub mounted within a housing, comprising the steps of:

• providing interior walls of the housing above the rotating blades with a diffuser having an outwardly expanding convex curved, conical shape;
• and
• reducing undesirable sound noise emissions the rotating blades inside of the housing with the diffuser.

A method of reducing undesirable sound noise emissions and increasing airflow in an air conditioner condenser/heat pump fan assembly having rotating blades attached to a hub mounted within a housing, comprising the steps of:

• providing a porous surface to an area adjacent to the rotating blades within the housing;
• and
• simultaneously reducing both the sound noise emissions from the rotating blades and the air flow from the rotating blades by the porous surface being adjacent to the rotating blades.