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Class Information
Number: 417/213
Name: Pumps > Condition responsive control of drive transmission or pump displacement > Having condition responsive pumped fluid control
Description: Apparatus combined with fluid flow control means for varying the flow of pumped fluid to or from the pump or pump chamber, or controlling a relief or bypass which means is also operated by sensing the occurrence of a condition or a change in condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7611341 |
Capacity varying type rotary compressor |
Nov. 3, 2009 |
| 7566204 |
Multicylindrical rotary compressor, compression system, and freezing device using the compression system |
Jul. 28, 2009 |
| 7547202 |
Scroll compressor with capacity modulation |
Jun. 16, 2009 |
| 7546184 |
Locomotive engine restart shutdown override system and method |
Jun. 9, 2009 |
| 7497116 |
Flow rate estimation method of blood pump |
Mar. 3, 2009 |
| 7419365 |
Compressor with capacity control |
Sep. 2, 2008 |
| 7396214 |
Variable displacement pump and control therefor |
Jul. 8, 2008 |
| 7371053 |
Two-stage hydraulic pump |
May. 13, 2008 |
| 7293965 |
Limiter device for variable displacement compressor |
Nov. 13, 2007 |
| 7226273 |
Method of generating compressed air, and compressor arrangement for implementing the method |
Jun. 5, 2007 |
| 7153106 |
Air compressor unit inlet control |
Dec. 26, 2006 |
| 7074013 |
Dual volume-ratio scroll machine |
Jul. 11, 2006 |
| 7070399 |
Variable displacement pump with a suction area groove for pushing out rotor vanes |
Jul. 4, 2006 |
| 7048515 |
Hydraulic drive system and method using a fuel injection control unit |
May. 23, 2006 |
| 7028659 |
Method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine |
Apr. 18, 2006 |
| 6962485 |
Constant bypass flow controller for a variable displacement pump |
Nov. 8, 2005 |
| 6953325 |
Safety device to limit pressure in an axial-piston compressor housing |
Oct. 11, 2005 |
| 6932588 |
Variable capacity rotary compressor |
Aug. 23, 2005 |
| 6910344 |
Compressor torque estimate device, engine controller and method of estimating compressor torque |
Jun. 28, 2005 |
| 6884042 |
Two-step self-modulating scroll compressor |
Apr. 26, 2005 |
| 6821092 |
Capacity modulated scroll compressor |
Nov. 23, 2004 |
| 6790013 |
Variable displacement vane pump with variable target regulator |
Sep. 14, 2004 |
| 6736604 |
Control apparatus of variable displacement pump for power steering apparatus |
May. 18, 2004 |
| 6709244 |
Diagnostic system for a compressor |
Mar. 23, 2004 |
| 6688851 |
Oil pump for controlling planetary system torque |
Feb. 10, 2004 |
| 6679683 |
Dual volume-ratio scroll machine |
Jan. 20, 2004 |
| 6672844 |
Apparatus and method for controlling variable displacement compressor |
Jan. 6, 2004 |
| 6663350 |
Self generating lift cryogenic pump for mobile LNG fuel supply system |
Dec. 16, 2003 |
| 6623247 |
Method and apparatus for controlling a variable displacement hydraulic pump |
Sep. 23, 2003 |
| 6619928 |
Variable displacement pump |
Sep. 16, 2003 |
| 6616419 |
Variable displacement pump |
Sep. 9, 2003 |
| 6604913 |
Vane pump |
Aug. 12, 2003 |
| 6575710 |
Compressor with blocked suction capacity modulation |
Jun. 10, 2003 |
| 6572341 |
Variable displacement type compressor with suction control valve |
Jun. 3, 2003 |
| 6558132 |
Variable displacement pump |
May. 6, 2003 |
| 6537037 |
Variable displacement compressor and air conditioning apparatus |
Mar. 25, 2003 |
| 6537038 |
Supply pump having a variable drive gear unit |
Mar. 25, 2003 |
| 6524076 |
Variable displacement pump including a control valve |
Feb. 25, 2003 |
| 6461116 |
Crankcase pressurizing conduit for a swash plate type compressor |
Oct. 8, 2002 |
| 6457948 |
Diagnostic system for a compressor |
Oct. 1, 2002 |
| 6453585 |
Hydraulic drive device of working machine |
Sep. 24, 2002 |
| 6428284 |
Rotary vane compressor with economizer port for capacity control |
Aug. 6, 2002 |
| 6419457 |
Dual volume-ratio scroll machine |
Jul. 16, 2002 |
| 6412293 |
Scroll machine with continuous capacity modulation |
Jul. 2, 2002 |
| 6401472 |
Refrigerant compressor apparatus |
Jun. 11, 2002 |
| 6374625 |
Air conditioning systems |
Apr. 23, 2002 |
| 6368065 |
Linear drive scroll compressor assemble |
Apr. 9, 2002 |
| 6324841 |
Power- and moment-regulating system for a plurality of hydraulic pumps |
Dec. 4, 2001 |
| 6296455 |
Pump enable system and method |
Oct. 2, 2001 |
| 6293767 |
Scroll machine with asymmetrical bleed hole |
Sep. 25, 2001 |
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