| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
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| 12/29/1987 | US4715792 Variable capacity vane type compressor |
| 12/23/1987 | EP0249657A2 Apparatus with a vane pump |
| 12/22/1987 | US4714415 Scroll compressor with closed compression spaces having valves to reduce starting torque |
| 12/16/1987 | EP0248839A1 Intermittent service screw compressor. |
| 12/08/1987 | US4711617 Rotary compressor |
| 12/02/1987 | EP0247057A1 High output rotary compressor |
| 11/26/1987 | DE3617397A1 Control of a rotary piston compressor |
| 11/24/1987 | US4708599 Rotary compressor apparatus |
| 11/24/1987 | US4708598 Rotary type gas compressor |
| 11/19/1987 | EP0245427A1 Screw rotor compressor and refrigeration plant. |
| 11/03/1987 | US4704069 Method for operating dual slide valve rotary gas compressor |
| 10/29/1987 | DE3614219A1 Vane cell pump |
| 10/27/1987 | US4702088 Compressor for reversible refrigeration cycle |
| 10/15/1987 | DE3611395A1 Rotating piston compressor |
| 10/14/1987 | EP0240823A2 Rolling piston compressor |
| 09/29/1987 | US4696630 Scroll compressor with a thrust reduction mechanism |
| 08/12/1987 | EP0231648A1 Variable capacity vane compressor |
| 08/04/1987 | CA1225071A1 Helical screw rotary compressor for air conditioning system having improved oil management |
| 07/07/1987 | US4678406 Variable volume ratio screw compressor with step control |
| 06/19/1987 | DE3543707A1 Method for operating an interconnected compressor system |
| 06/18/1987 | WO1987003651A1 Intermittent service screw compressor |
| 06/16/1987 | US4673340 Variable capacity scroll type fluid compressor |
| 06/16/1987 | US4672989 Flow conditioned nutation valving apparatus and method of operation |
| 06/10/1987 | EP0225126A1 Variable capacity vane compressor |
| 06/09/1987 | US4672231 Control circuit particularly adapted for use with lubrication sensor apparatus |
| 06/09/1987 | US4671748 Compressor unit for the production of compressed air |
| 06/09/1987 | CA1222732A1 Scroll type fluid displacement apparatus |
| 05/21/1987 | WO1987003048A1 Screw rotor compressor and refrigeration plant |
| 05/20/1987 | EP0222109A1 Multiple cylinder rotary compressor |
| 05/14/1987 | DE3540260A1 Unit for feeding fuel from a storage tank to an internal combustion engine |
| 05/12/1987 | US4664608 Rotary compressor with reduced friction between vane and vane slot |
| 05/12/1987 | US4664601 Operation control system of rotary displacement type vacuum pump |
| 05/06/1987 | EP0220801A1 Variable volume gas compressor |
| 05/05/1987 | US4662826 Vacuum pump system including serially connected rotary and reciprocating vacuum pumps |
| 05/05/1987 | US4662190 Integral slide valve-oil separator apparatus in a screw compressor |
| 04/22/1987 | EP0219290A2 Torque control apparatus for rotary machine |
| 04/08/1987 | EP0217533A1 Variable volume gas compressor |
| 04/07/1987 | US4655688 Control for liquid ring vacuum pumps |
| 04/07/1987 | US4655049 Pure-air generator |
| 04/02/1987 | DE3533952A1 Rotary compressor |
| 04/01/1987 | CN86105602A Turbocompressor with variable quantity mechanism |
| 04/01/1987 | CN86105417A Scroll type compressor with variable displacement machanism |
| 03/24/1987 | US4652216 Compressor inlet control device |
| 03/11/1987 | EP0213216A1 Rotary piston blower |
| 03/10/1987 | US4648814 Scroll fluid machine with oil injection part and oil relieving passage |
| 03/04/1987 | EP0212570A2 Rolling piston compressor |
| 03/03/1987 | CA1218636A1 Compressor |
| 02/25/1987 | EP0211672A1 Scroll type compressor with variable displacement mechanism |
| 02/10/1987 | US4642034 Scroll type compressor with displacement adjusting mechanism |
| 02/10/1987 | US4642033 Positive displacement air compressors |
| 01/27/1987 | US4639199 Two-shaft vacuum pump with internal compression |
| 01/21/1987 | EP0209499A2 A compressor plant |
| 01/13/1987 | US4636148 Vane type compressor with volume control |
| 01/07/1987 | EP0207679A2 Refrigerator compressor system and motor protector unit therefor |
| 12/30/1986 | EP0206759A1 Scroll type compressor |
| 12/03/1986 | EP0203477A1 Refrigerant gas injection system for refrigeration cycle having a screw compressor |
| 11/20/1986 | WO1986006798A1 Refrigeration plant and rotary positive displacement machine |
| 11/11/1986 | US4621986 Rotary-vane compressor |
| 10/29/1986 | EP0199110A2 Vane pump |
| 10/28/1986 | US4619595 Capacity control device for compressor |
| 09/16/1986 | US4611976 Capacity and internal compression control device in a screw compressor |
| 09/12/1986 | WO1986005242A1 High output rotary compressor |
| 09/09/1986 | US4610613 Control means for gas compressor having dual slide valves |
| 09/09/1986 | US4610612 Rotary screw gas compressor having dual slide valves |
| 09/09/1986 | US4610610 Unloading of scroll compressors |
| 09/09/1986 | US4610602 Rotary gas compressor |
| 09/02/1986 | US4609329 Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port |
| 08/05/1986 | US4604036 Torque control apparatus for enclosed compressors |
| 07/08/1986 | US4598559 Reversible fixed vane rotary compressor having a reversing disk which carries the suction port |
| 07/01/1986 | US4597726 Screw compressor having two individually displaceable regulating slides |
| 06/11/1986 | EP0184329A1 Positive displacement air compressors |
| 04/22/1986 | US4583373 Constant evaporator pressure slide valve modulator for screw compressor refrigeration system |
| 04/15/1986 | US4582124 Automotive air conditioning system with automatic control of refrigerator compressor capacity and heater air mixing damper |
| 04/09/1986 | EP0177234A2 Refrigeration system |
| 04/08/1986 | US4580950 Sliding-vane rotary compressor for automotive air conditioner |
| 04/08/1986 | US4580949 Sliding vane type rotary compressor |
| 04/08/1986 | US4580947 Method of controlling operation of a plurality of compressors |
| 04/01/1986 | US4579513 Positive displacement screw machine with separation wall attached to slide valve |
| 04/01/1986 | US4578960 Automotive refrigeration |
| 03/26/1986 | EP0175354A2 Screw compressor for gaseous media |
| 03/25/1986 | US4577472 Reversible rotating vane rotary compressor having a movable supplemental suction port |
| 03/19/1986 | EP0174516A1 Rotary variable-delivery compressor |
| 03/11/1986 | US4575323 Slide valve type screw compressor |
| 03/11/1986 | US4575318 Unloading of scroll compressors |
| 02/27/1986 | WO1986001262A1 Unloading of scroll compressors |
| 02/18/1986 | US4571166 Control slide for a screw volumetric machine and a machine equipped therewith |
| 02/18/1986 | US4570451 Pressure-ratio threshold sensor and a machine processing a liquefiable gas and equipped with such a sensor |
| 02/18/1986 | CA1200803A1 Scroll compressor with controlled suction unloading using coupling means |
| 02/12/1986 | EP0171367A1 Compressor unit for the production of compressed air |
| 02/11/1986 | US4569636 Device for regulating the delivery of rotary compressors |
| 01/29/1986 | EP0169336A1 Control and actuation system, especially for water ring vacuum pumps |
| 01/28/1986 | US4566869 Reversible multi-vane rotary compressor |
| 01/28/1986 | US4566863 Rotary compressor operable under a partial delivery capacity |
| 01/21/1986 | US4565508 Device for controlling the volumetric capacity of a screw compressor |
| 01/21/1986 | US4565498 Rotary gas compressor |
| 01/07/1986 | US4563131 Variable displacement blower |
| 12/24/1985 | US4560330 Scroll device with suction chamber pressure relief |
| 12/17/1985 | US4558993 Rotary compressor with capacity modulation |
| 12/10/1985 | US4557670 For use in a refrigeration apparatus |
| 12/04/1985 | EP0163228A2 Inlet shut-off valve for rotary piston pumps |