20080226482 | Compressor With Controlled Capacity - A compressor with controlled capacity mainly includes a double cylinder compressor with a reservoir, a capacity switch device, the outlet for the intake pipe of the said reservoir is divided into two branches, which are connected with the upper and lower cylinder through a capacity switch device switched between the 2way-2through and oneway-2through switch to realize the connection in series or in parallel for the double cylinder, as a result, the discharge capacity of the compressor is that of the first stage cylinder when connection in series, or the sum of the two cylinders discharge amount when connection in parallel. The capacity switch device may be a special 4way-2way reversing valve or the combination of the single way valve and the general 4way reversing valve, or the combination of the solenoid valve and the general 4way reversing valve, or the combination of three solenoid valves, or the combination of a single way valve and two solenoid valves. With the present invention it has completed the control of two discharge volume of the compressor, this may not only simplify the fabrication process and reduce the installation space for the compressor, reduce the manufacture cost, but also the control is very simple and reliable so that the market competence is raised significantly. | 09-18-2008 |