Patent GB-706363-A (GB)
Title: Rotary compressors and motor installations
IPC: F04C18/20
Filed: 1951-10-29
Abstract: 706,363. Rotary motors and compressors ; motor power plant. TAVENIERS, P. Oct. 29, 1951 [Oct. 30, 1950], No. 25237/51. Classes 110 (2) and 110 (3) A compressor of the rotary abutment type has means in one or both rotors for controlling the delivery of the fluid being compressed, the inlet being permanently open. The compressor may supply an engine on the same shaft, or a motor compressor may be combined with a turbo-compressor. In Fig. 1, air admitted through a port 8<SP>1</SP> is compressed in a chamber 10<SP>1</SP> until a valve 12 is lifted at a predetermined delivery pressure. Air may be admitted to the chamber from the interior of the rotor 1<SP>1</SP>, behind the piston 41, or the valve 12 may be placed in the front of the piston. The compressor may supply an engine provided with a fuel injector and a sparking plug, Fig. 2 (not shown), the compressor and motor rotors being integral. Fig. 3 shows a motor-compressor having a rotor 1 and an abutment 2 geared together. Compression elements 2', 2<SP>3</SP>, 2<SP>5</SP> and 11<SP>1</SP>, 11<SP>3</SP>, 11<SP>5</SP> are formed alternately with engine elements 2<SP>2</SP> ... 2<SP>8</SP> and 10<SP>2</SP> ... 10<SP>8</SP> with dividing walls 17. Labyrinth packing may be provided. The air or mixture acts as a coolant when it flows through hollow rotors. Ports 18, 19, 181 allow this flow. In a modification, Fig. 10 (not shown), the abutment rotor 2<SP>1</SP> is mounted on a tube having ports which co-act with ports in the rotor to control the fluid flow into and out of the rotor. Fig. 13 shows a motor-compressor, air being supplied through an inlet 13<SP>1</SP>, compressed and delivered through ducts 19, 20 to the inlet ports 8<SP>2</SP> of the engine. The cooling of the stator is limited so that its temperature is slightly higher than that of the rotor so that its expansion is a little greater than that of the rotor. In Fig. 15 compressed air from a motor-compressor 28 passes through a pipe 20 to a collector 30 to supply its own driving motor line 20" and rotor 29 giving external power. A valve in the collector 30 controls the two flows in pipe 20<SP>1</SP>, 20". Compressors may be of the multi-stage type with intercoolers. In one arrangement, Figs. 17 to 20 (not shown), each piston rotor co-acts with two rotary abutments, there being two stages of compression and two of expansion. The partly expanded gas may be re-heated by a burner. Fig. 21 shows another arrangement in which a motor-compressor 28 gives off useful power. A first-stage compressor 35 is driven by a turbine 36 operated by exhaust gas from the motor 28. Gearing 37 connects the engine and turbine shafts. Fig. 22 shows a plant having a first-stage compressor 35 supplying a motor-compressor 28 through a pipe 13<SP>1</SP>, the compressor having a delivery valve 9<SP>1</SP>, as in Fig. 1. Compressed air from the motor compressor 28 passes to a collector 30 which, through a regulator 31, distributes some compressed air to a channel 20<SP>11</SP>, leading to the motor of 28, and the remainder to a motor 29 which supplies external power. The two shafts may run at different speeds but one can drive the other through a free-wheel device 38. The compressor 35 is driven by an exhaust gas turbine 36.