Patent Application
20160153451
This invention relates generally to pressure systems and more particularly to a portable pressure system used principally for gently cleaning fine particulate matter from hard to reach AC evaporator coils.
Dirt and other contaminates, such as grease, pollen, hair spray, etc., on air-conditioning coils present a serious maintenance problem in residential or commercial buildings. Dirty coils reduce airflow, decrease efficiency, reduce HVAC capacity, and are a major cause of compressor failure and sick building syndrome.
Indoor coils known as evaporator coils are located in the air handler portion of the system and are generally fitted with intake filters
The most common type of AC coil is the A-frame type whereby a pair of coils is arranged back-to-back forming an “A”. Such coils are placed in the air handling system so as to pass intake air across the coils, using a blower fan, and into the ventilation ducts. Contaminates in the air stream tend to settle on the face of one coil and on the under side of the adjacent coil. Using brushes, foams, water spray and the like to clean the exterior faces of coils while in place simply forces the contaminates further into the coils because of inaccessibility of the coils from either side.
A cleaning system for providing a compressed fluid and to clean a coil of an air conditioner include a portable power supply; a motor connected to the portable power supply to rotate a shaft; a cam connected to the shaft to drive a reciprocating linear motion camshaft; and a piston connected to the camshaft to provide pressurized fluid.
The portable power supply may be a cordless drill.
The shaft may be connected to a drill bit of a cordless drill.
The piston may be a rotary piston.
The piston may be a scroll piston.
The piston may be an air piston.
The invention may be understood by reference to the following description taken in conjunction with the accompanying drawings, in which, like reference numerals identify like elements, and in which:
Various compressors which may be used with the present invention are described below.
Hydraulic compressors are usually divided in four main groups: piston compressors, rotary vane compressors, rotary screw compressors and gear compressors. The piston-models are the most suitable for basic need for compressed air such as energizing small hand tools or air flushing of small quarry drills. Rotary vane-models include also a cooled lubrication system, oil separator, relief valve on the air intake and automatic rotation speed valve. Rotary vane-models are the most suitable for installation on different excavators, mining and other machines.
A reciprocating compressor or piston compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high pressure.
The intake gas enters the suction manifold, then flows into the compression cylinder where it gets compressed by a piston driven in a reciprocating motion via a crankshaft and is then discharged.
A rotary vane pump is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside of a cavity. In some cases these vanes can be variable length and/or tensioned to maintain contact with the walls as the pump rotates
A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger) and as a vacuum pump.
A scroll compressor operating in reverse is known as a scroll expander, and can be used to generate mechanical work from the expansion of a fluid, compressed air or gas. Many residential central heat pump and air conditioning systems and a few automotive air conditioning systems employ a scroll compressor instead of the more traditional rotary, reciprocating, and wobble-plate compressors.
A rotary screw compressor is a type of gas compressor which uses a rotary type positive displacement mechanism. They are commonly used to replace piston compressors where large volumes of high pressure air are needed, either for large industrial applications or to operate high-power air tools such as jackhammers.
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed.
