Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
04/1977
04/12/1977US4017223 Axial thrust adjustment for dual screw-type pump
04/05/1977US4015441 Refrigeration apparatus
03/1977
03/15/1977US4012183 Rotary vane compressor with vane extension means
02/1977
02/15/1977US4008014 Piston seals for rotary mechanisms
02/15/1977US4008013 Fluid rotative machine with variable displacement
02/15/1977US4007715 Rotary engines, compressors and vacuum pumps
02/01/1977US4005953 Piston of a rotary piston engine of trochoid type, having an internal seal
02/01/1977US4005951 Rotary vane engine with orbiting inner and outer members
02/01/1977US4005950 Bearings for slant axis rotary mechanisms
01/1977
01/25/1977US4004864 Method for modifying a compressing apparatus unit
12/1976
12/28/1976US3999905 Rotary mechanism
12/28/1976US3999903 Combination thrust and journal bearing
12/28/1976US3999902 Slant axis rotary mechanism with relieved apex portions
12/07/1976US3995976 Rotary device with axially biased blade and rotor sections
11/1976
11/30/1976US3994638 Oscillating rotary compressor
11/30/1976US3994637 Rotary piston engine of trochoidal design
11/30/1976US3994636 Axial compliance means with radial sealing for scroll-type apparatus
11/30/1976US3994635 Scroll member and scroll-type apparatus incorporating the same
11/09/1976US3990819 Seals for rotary mechanisms
11/02/1976US3989426 Vane pump
11/02/1976US3989422 Displacement machine for compressible media
11/02/1976US3989421 Housing construction for slant axis rotary mechanism
11/02/1976US3989413 Gas compressor unloading means
10/1976
10/26/1976US3988080 Rotary vane compressor with outlet pressure biased lubricant
10/26/1976US3988078 Seals for rotary engines
10/19/1976US3986801 Screw compressor
10/19/1976US3986799 Fluid-cooled, scroll-type, positive fluid displacement apparatus
09/1976
09/28/1976US3982861 Rotor construction for slant axis rotary mechanisms
09/28/1976US3982860 Thrust bearings for slant axis rotary mechanisms
09/21/1976US3981703 Multistage vane type rotary compressor
09/21/1976US3981640 Slant axis rotary mechanism
09/21/1976US3981638 Rotary piston machine
08/1976
08/24/1976US3976403 Rotary vane fluid pressure machine
08/17/1976US3975123 Shaft seals for a screw compressor
08/10/1976US3973881 Vane-type pump or motor with undervane fluid bias
08/10/1976US3973469 Floating chamber machine
08/03/1976US3972660 Corner seals for rotary mechanisms
08/03/1976US3972658 Housing for slant axis rotary mechanism
08/03/1976US3972657 Slant axis rotary mechanism
06/1976
06/29/1976US3966370 Rotary piston machine for transporting liquid or gaseous media
06/15/1976US3963390 Bearing arrangement for rotary piston engine for compressing and expanding gases
06/15/1976US3963386 Rotary motor with inflatable expansion member
06/15/1976US3963379 Convertible engine-air compressor apparatus for driving a vehicle
05/1976
05/18/1976US3957404 Vanes for fluid power converter
05/18/1976US3956904 Compressor-expander for refrigeration having dual rotor assembly
05/04/1976US3954358 Compressor
05/04/1976US3954357 Air pump pivot pin restraint
04/1976
04/20/1976US3951575 Controlled output gear pump and motor
03/1976
03/30/1976US3947164 Rotatable machine operating as a compressor or a motor
03/30/1976US3947163 Screw rotor machine with axially balanced hollow thread rotor
03/30/1976US3947078 Rotary screw machine with rotor thrust load balancing
03/23/1976US3945777 Bearing and bearing support for rotary piston engine for compressing and expanding gases
03/23/1976US3945216 Refrigeration systems
03/02/1976US3941524 Rotary piston engine having a trochoidal piston and annularly-closed axial seals in the piston
03/02/1976US3941522 Modified rotary compressor yielding sinusoidal pressure wave outputs
03/02/1976US3941521 Rotary compressor
03/02/1976US3941520 Method and device for injection of liquid
02/1976
02/17/1976US3938919 Rotary piston machine of trochoidal construction
02/17/1976US3938915 Screw rotor machine with hollow thread rotor enclosing a screw cam rotor
02/03/1976US3936248 Casing for rotary piston engines of trochoidal construction
02/03/1976US3936239 Undercompression and overcompression free helical screw rotary compressor
01/1976
01/13/1976US3932073 Screw rotor machine with spring and fluid biased balancing pistons