| Patents for F04C 2 - Rotary-piston machines or pumps (14,296) |
|---|
| 03/24/1988 | DE3631508A1 Engine or machine |
| 03/10/1988 | WO1988001694A1 Rotary pump with minimized friction and respecting the integrity of conveyed material |
| 03/10/1988 | DE3644929A1 Electromagnetically powered pump |
| 03/09/1988 | EP0258797A2 Variable discharge gear pump |
| 03/09/1988 | EP0258393A1 Adhesive dispensing pump control system and pump |
| 03/09/1988 | CN86103779A Wearless sealing type power machine with sliding blade |
| 03/08/1988 | US4729727 Gear pump with groove in end wall beginning at outer periphery of pumping chamber and widening toward gear teeth roots |
| 03/02/1988 | EP0257043A1 A mechanism |
| 03/01/1988 | CA1233364A1 Hydraulic energy-conversion device |
| 02/23/1988 | CA1233073A1 Rotary fluid devices |
| 02/23/1988 | CA1233072A1 Rotary piston machine with parallel internal axes |
| 02/23/1988 | CA1233071A1 Rotary piston machine with parallel internal axes |
| 02/16/1988 | US4725211 Gear pumps |
| 02/16/1988 | US4725006 Apparatus for conveying sewage |
| 02/09/1988 | CA1232492A1 Wave pump assembly |
| 02/03/1988 | EP0255336A2 Rotary displacement pump |
| 02/03/1988 | EP0254721A1 Vane pump. |
| 02/02/1988 | US4722676 Axial sealing mechanism for scroll type fluid displacement apparatus |
| 02/02/1988 | US4722672 Hydraulic energy-conversion device |
| 02/02/1988 | US4722652 Hydraulic vane type pump |
| 01/28/1988 | WO1988000641A1 Rotating piston machine |
| 01/27/1988 | EP0254077A2 Internal gear pump |
| 01/21/1988 | DE3624517A1 Internal gear pump |
| 01/20/1988 | EP0253133A2 Internal gear hydraulic pump |
| 01/20/1988 | EP0156845B1 Means for the handling of contaminated fluids |
| 01/20/1988 | CN87206184U 凸轮泵 Lobe Pumps |
| 01/19/1988 | CA1231585A2 Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| 01/14/1988 | DE3621967A1 Pipe-shaped pump unit with drive motor |
| 01/13/1988 | EP0252612A2 Oil pump |
| 01/12/1988 | US4718824 Usable device, in particular for the pumping of an extremely viscous fluid and/or containing a sizeable proportion of gas, particularly for petrol production |
| 01/07/1988 | EP0250550A1 Gear pump |
| 01/07/1988 | DE3621153A1 Pump |
| 01/05/1988 | US4717320 Gerotor motor balancing plate |
| 12/29/1987 | US4715798 Rotary fluid pressure device |
| 12/29/1987 | US4715793 Flow regulating rotary vane pump |
| 12/23/1987 | EP0249657A2 Apparatus with a vane pump |
| 12/23/1987 | DE3620705A1 Internal gear wheel pump as lubricating oil pump |
| 12/17/1987 | DE3619787A1 Stator for off-centre spiral pumps |
| 12/16/1987 | EP0249178A1 Internal axis-type rotary-piston machine |
| 12/16/1987 | CN86103891A Alternative stepped hydraulic prime mover and pump |
| 12/10/1987 | DE3716960A1 Hydraulic pump |
| 12/10/1987 | DE3628163A1 Bearing for a drive gearwheel of an internal-toothed gear pump |
| 12/08/1987 | US4711619 Vane fuel pump having reduced displacement at high speeds |
| 12/08/1987 | US4711006 Downhole sectional screw motor, mounting fixture thereof and method of oriented assembly of working members of the screw motor using the mounting fixture |
| 11/25/1987 | EP0247001A2 Vane pump for the transport of pasty foodstuffs, especially of sausage meat |
| 11/25/1987 | EP0246482A2 Vane pump |
| 11/24/1987 | CA1229521A2 Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| 11/19/1987 | EP0245657A2 Roller vane pump |
| 11/19/1987 | EP0245539A2 Apparatus provided with a vane pump |
| 11/19/1987 | EP0245381A1 Rotary pumps |
| 11/19/1987 | DE3616515A1 Slide vane rotary vacuum pump |
| 11/12/1987 | DE3615795A1 Method of manufacturing eccentric screw pumps |
| 11/11/1987 | EP0244672A2 Gerotor motor with valving in gerotor star |
| 11/11/1987 | EP0244575A2 Internal-gear pump |
| 11/11/1987 | CN86105874A Pump with half-round cam rotor |
| 11/04/1987 | EP0244076A2 Downhole circulation pump |
| 11/03/1987 | US4704096 Crowned splines and defination of root radius therefor |
| 10/29/1987 | DE3614192A1 Vane cell pump |
| 10/28/1987 | EP0242963A2 Rotary positive displacement pump |
| 10/21/1987 | CN86107444A Vane unloading type safety vane oil pump |
| 10/21/1987 | CN86101132A Low speed high efficiency energy saving pump |
| 10/14/1987 | EP0240491A1 Rotary engine. |
| 10/13/1987 | US4699577 Internal gear device with improved rotary valve |
| 10/13/1987 | US4699575 Adhesive pump and it's control system |
| 10/13/1987 | CA1227936A1 Combustion chamber fuel feeder process and system |
| 10/08/1987 | WO1987005975A1 High-pressure hydraulic generator-receiver for power transmission |
| 10/06/1987 | US4697998 Hydraulic motor having integral flow control capability |
| 10/06/1987 | US4697997 Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| 10/06/1987 | US4697996 Rotary pump with adjustable cam ring |
| 10/06/1987 | US4697990 Variable capacity vane pump with means to vary the area of overlap |
| 10/01/1987 | DE3607976A1 Pump |
| 09/30/1987 | CN86100534A Globular variable-displacement pump |
| 09/22/1987 | CA1227019A1 Method of manufacturing a rotor for a rotary fluid pump |
| 09/10/1987 | DE3607248A1 Hydraulic rotary piston machine |
| 09/09/1987 | EP0236148A2 Oscillating piston-type multifunctional volumetric pump |
| 09/09/1987 | EP0235273A1 Positive displacement pump or motor |
| 09/09/1987 | CN86101263A Cycloidal pinion engaged pair |
| 09/08/1987 | US4692104 Rotary pumping apparatus with radial seal assemblies on piston |
| 08/27/1987 | WO1987004951A1 Adhesive dispensing pump control system and pump |
| 08/27/1987 | DE3605663A1 Repair set for eccentric screw pump |
| 08/25/1987 | US4688815 Hydraulically driven bicycle |
| 08/12/1987 | EP0231429A2 Gear pump |
| 08/11/1987 | CA1225280A1 Gear pump-liquid gas mixer with improved gas introduction |
| 08/04/1987 | US4684335 Pumps |
| 07/30/1987 | WO1987004495A1 A mechanism |
| 07/28/1987 | US4682939 Gear pump or motor with tooth tips of dissimilar metal |
| 07/28/1987 | US4682938 Gear pump bearings |
| 07/22/1987 | CN86205884U Manual plastic rotor water-pump |
| 07/21/1987 | US4681519 Rotor for rotary fluid pump |
| 07/21/1987 | CA1224361A1 Rotary pump |
| 07/14/1987 | US4679995 Variable capacity type pump with damping force on cam ring |
| 07/14/1987 | CA1224083A1 Reversible unidirectional flow rotary pump |
| 07/09/1987 | DE3603773A1 Gear machine |
| 07/07/1987 | US4678415 Rotary type fluid machine |
| 07/07/1987 | US4678412 Adjusting apparatus for a vane pump or radial piston pump |
| 07/07/1987 | CA1223747A1 Multi-groove and spline connection and method |
| 07/02/1987 | WO1987003937A1 Gear pump |
| 07/01/1987 | EP0227249A1 Axial sealing mechanism for scroll type fluid displacement apparatus |
| 06/30/1987 | US4676725 Moineau type gear mechanism with resilient sleeve |
| 06/30/1987 | CA1223417A1 Extruder screw and positive displacement wave pump assembly |