F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids

Patents for F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516)
01/1980
01/29/1980	US4185949 Screw compressor with bearing unloading means
11/1979
11/15/1979	WO1979000919A1 Tapered seal for engines or the like
10/1979
10/17/1979	EP0004609A2 Screw compressor-expander cryogenic system
05/1979
05/08/1979	US4153395 Compressors
11/1978
11/14/1978	CA1042400A1 Vacuum pump
10/1978
10/31/1978	US4123201 Modular vacuum pump assembly
10/17/1978	US4120621 Oil sealed single stage vacuum pump
12/1977
12/06/1977	US4061446 Rotary air pump or compressor with flexible end sealing plates
09/1977
09/27/1977	US4050855 Dry air rotary pump or compressor
04/1977
04/19/1977	US4018548 Rotary trochoidal compressor
04/12/1977	US4016635 Method of manufacturing piston sealing strips of rotary piston machines
02/1977
02/01/1977	US4005953 Piston of a rotary piston engine of trochoid type, having an internal seal
09/1976
09/28/1976	US3982864 Vacuum pump
08/1976
08/17/1976	US3975123 Shaft seals for a screw compressor
03/1976
03/02/1976	US3941524 Rotary piston engine having a trochoidal piston and annularly-closed axial seals in the piston
01/1976
01/13/1976	US3931718 Refrigerant screw compression with liquid refrigerant injection