Rolling piston type compressor with no reservoir

[0027] Example 1: A single-cylinder horizontal compressor is built in the suction pipe (as shown in Figure 1)

[0028] The two ends of the horizontally arranged shell 3 are sealed by shell covers G1 and G2, and the inside is divided into two parts by the main bearing 6 (or cylinder 7 or other partitions), namely, the low-pressure chamber C1 at suction pressure and the discharge chamber C1 at work. The high pressure chamber C2 of air pressure, the cavity C1 is provided with the motor part composed of the rotor 4 and the stator 5, and the chamber C2 contains the compression pump part composed of the cylinder 7, the crankshaft 12, the piston 8 and the main and auxiliary bearings 6, 16 , Its inner bottom is a lubricating oil pool 10, and the housing 3 is provided with an intake pipe 2 and an exhaust pipe 20 communicating with the system. The intake pipe 2 with the filter screen 1 is installed on the shell cover G1 (or the shell 3, as shown by the dotted line in Figure 1), and the exhaust pipe 20 is set on the shell cover G2 (or the shell 3, as shown in the figure). Shown by the dotted line in 1). A vertically installed suction pipe 14 is provided between the two chambers. The suction pipe is provided with a filter screen. The upper end of the suction pipe is opened in the low pressure chamber C1, and the lower end is connected with the cylinder suction port 18 in the high pressure chamber C2. The suction pipe 14 is fixed on the main bearing 6 (or the motor stator 5 or the housing 3). The oil return hole 13 is provided at the bottom of the suction pipe 14.

[0029] Example 2: Single-cylinder horizontal compressor with external suction pipe

[0030] The suction pipe 14 is placed outside, and an oil return hole 13 is opened at the position of the suction pipe 14 close to the bottom of the casing 1. The other structure is the same as that of the first embodiment, as shown in FIG. 2.

[0031] Example 3: Single-cylinder vertical compressor with external suction pipe

[0032] The two ends of the vertically arranged shell 3 are sealed by shell covers G1 and G2, and the inside is divided into two parts, namely the low pressure chamber C1 and the high pressure chamber C2, by the main bearing 6 of the separator, which is a vertical structure. The cavity C1 contains the motor, and the cavity C2 contains the compression pump part and the oil pool 10. The intake pipe 2 is provided on the upper side of the housing 3 and the exhaust pipe 20 is provided on the lower side of the housing 3. The suction pipe 14 is vertically arranged on the outside of the casing, the upper end is communicated with the cavity C1, and the lower end is communicated with the suction port 18. The oil return hole 13 is arranged on the main bearing 6 of the separator and communicates with the suction port 18 on the cylinder 7. As shown in Figure 3.