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Class Information
Number: 417/220
Name: Pumps > Condition responsive control of drive transmission or pump displacement > Adjustable cam or linkage > Radially adjustable stator > Rotary expansible chamber pump
Description: Apparatus in which the pump is a rotary pump of the expansible chamber type.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7549848 |
Device for adjusting the pumping capacity of a lubricant pump for an internal combustion engine |
Jun. 23, 2009 |
| 7546895 |
Variable displacement pump |
Jun. 16, 2009 |
| 7540727 |
Capacity varying type rotary compressor |
Jun. 2, 2009 |
| 7484939 |
Variable displacement radial piston pump |
Feb. 3, 2009 |
| RE40554 |
Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member |
Oct. 28, 2008 |
| 7399166 |
Variable displacement pump |
Jul. 15, 2008 |
| 7396214 |
Variable displacement pump and control therefor |
Jul. 8, 2008 |
| 7344361 |
Variable-delivery vane pump |
Mar. 18, 2008 |
| 7318705 |
Variable displacement pump with communication passage |
Jan. 15, 2008 |
| 7207782 |
Vacuum pump |
Apr. 24, 2007 |
| 7207783 |
Variable displacement pump |
Apr. 24, 2007 |
| 7179061 |
Multi-layer compressor housing and method of manufacture |
Feb. 20, 2007 |
| 7128542 |
Variable displacement pump |
Oct. 31, 2006 |
| 7106587 |
Fluid moving device with a radiation module |
Sep. 12, 2006 |
| 7083394 |
Vane pump with undervane feed |
Aug. 1, 2006 |
| 7052252 |
Port configuration for fuel pump unit for facilitating pressure feedback |
May. 30, 2006 |
| 7018178 |
Variable displacement pump and control therefore for supplying lubricant to an engine |
Mar. 28, 2006 |
| 6976830 |
Variable displacement pump |
Dec. 20, 2005 |
| 6913446 |
Method for improving the efficiency of a variable displacement pump |
Jul. 5, 2005 |
| 6896489 |
Variable displacement vane pump with variable target regulator |
May. 24, 2005 |
| 6874996 |
Compressor having independently driven members |
Apr. 5, 2005 |
| 6821093 |
Flow meter |
Nov. 23, 2004 |
| 6817438 |
Apparatus and a method for adjusting fluid movement in a variable displacement pump |
Nov. 16, 2004 |
| 6790013 |
Variable displacement vane pump with variable target regulator |
Sep. 14, 2004 |
| 6786702 |
Fuel metering unit |
Sep. 7, 2004 |
| 6736604 |
Control apparatus of variable displacement pump for power steering apparatus |
May. 18, 2004 |
| 6722856 |
Vane-cell pump |
Apr. 20, 2004 |
| 6709242 |
Variable displacement pump |
Mar. 23, 2004 |
| 6634865 |
Vane pump with undervane feed |
Oct. 21, 2003 |
| 6623250 |
Fuel metering unit |
Sep. 23, 2003 |
| 6616419 |
Variable displacement pump |
Sep. 9, 2003 |
| 6558132 |
Variable displacement pump |
May. 6, 2003 |
| 6533559 |
Heat dissipating fan with multiple layers of blades |
Mar. 18, 2003 |
| 6530752 |
Variable displacement pump |
Mar. 11, 2003 |
| 6524076 |
Variable displacement pump including a control valve |
Feb. 25, 2003 |
| 6503068 |
Variable capacity type pump |
Jan. 7, 2003 |
| 6497558 |
Hydraulic pressure transformer |
Dec. 24, 2002 |
| 6468044 |
Variable displacement pump |
Oct. 22, 2002 |
| 6457946 |
Regulatable pump |
Oct. 1, 2002 |
| 6382925 |
Variable displacement pump |
May. 7, 2002 |
| 6375435 |
Static cam seal for variable displacement vane pump |
Apr. 23, 2002 |
| 6352415 |
variable capacity hydraulic pump |
Mar. 5, 2002 |
| 6328535 |
Flow control valve capable of adjusting fluid flow characteristics in accordance with a position of a valve element in a bore |
Dec. 11, 2001 |
| 6280150 |
Variable displacement pump |
Aug. 28, 2001 |
| 6217296 |
Variable displacement pump |
Apr. 17, 2001 |
| 6164928 |
Pump with openable seal |
Dec. 26, 2000 |
| 6155797 |
Variable displacement pump |
Dec. 5, 2000 |
| 6120256 |
Variable displacement pump |
Sep. 19, 2000 |
| 6086335 |
Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member |
Jul. 11, 2000 |
| 6042343 |
Variable displacement pump |
Mar. 28, 2000 |
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