Patents in subclass Pumps/Adjustable Cam Or Linkage
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07354250 | Variable capacity rotary compressor A variable capacity rotary compressor having a slot defined between eccentric bushes, a latch pin fitted to a rotary shaft so as to be latched to the slot, and a restraint unit for restraining the eccentric bushes upon rotation of the... |
04/08/2008 |
| 07341434 | Regulatory device comprising a threshold valve control valve The invention relates to a regulatory device for a pump (2), whose delivery volume can be adjusted, said device comprising a control valve unit (3) for regulating a control pressure that operates in a control pressure chamber (21) of an... |
03/11/2008 |
| 07309217 | Variable capacity rotary compressor A variable capacity rotary compressor includes a hermetic casing, a housing installed in the hermetic casing to define therein first and second compression chambers having different capacities, and a compressing unit placed in the first... |
12/18/2007 |
| 07300259 | Variable capacity rotary compressor A variable capacity rotary compressor, including upper and lower compression chambers having different capacities, a rotating shaft passing through the upper and lower compression chambers, upper and lower eccentric cams provided on the... |
11/27/2007 |
| 07293966 | Variable capacity rotary compressor A variable capacity rotary compressor including a housing, the housing including two compression chambers, the two compression chambers having different capacities; a rotating shaft rotatably provided in the two compression chambers; two... |
11/13/2007 |
| 07281914 | Variable capacity rotary compressor A variable capacity rotary compressor has a simplified structure to reduce manufacturing costs and assembling time thereof and is capable of easily and conveniently performing a capacity-changing operation. The variable capacity rotary... |
10/16/2007 |
| 07226275 | Variable capacity rotary compressor A variable capacity rotary compressor including upper and lower compression chambers having different capacities, and a rotating shaft. Upper and lower eccentric cams are provided on the rotating shaft to be eccentric from the rotating... |
06/05/2007 |
| 07223081 | Variable capacity rotary compressor A variable capacity rotary compressor to prevent eccentric bushes from rotating faster than a rotating shaft, and includes upper and lower compression chambers having different interior capacities thereof, and the rotating shaft with... |
05/29/2007 |
| 07220108 | Variable capacity rotary compressor A variable capacity rotary compressor including upper and lower compression chambers having different capacities, and a rotating shaft. Upper and lower eccentric cams are provided on the rotating shaft to be eccentric from the rotating... |
05/22/2007 |
| 07192259 | Variable capacity rotary compressor A variable capacity rotary compressor with upper and lower compression chambers having different capacities, the upper and lower compression chambers being partitioned from each other, and a rotary shaft extending through the upper and... |
03/20/2007 |
| 07153109 | Variable capacity rotary compressor A variable capacity rotary compressor includes a hermetic casing, a housing installed in the hermetic casing to define therein first and second compression chambers having different capacities, and a compressing unit placed in the first... |
12/26/2006 |
| 07150602 | Variable capacity rotary compressor A variable capacity rotary compressor including first and second compression chambers having different capacities, and a rotating shaft. First and second eccentric cams are mounted to the rotating shaft to be eccentric in a same... |
12/19/2006 |
| 07150608 | Variable capacity rotary compressor A variable capacity rotary compressor including upper and lower compression chambers in which compressing operations are carried out. A slot is provided at a predetermined position between upper and lower eccentric bushes. A locking pin... |
12/19/2006 |
| 07144224 | Variable capacity rotary compressor A variable capacity rotary compressor is designed to prevent eccentric bushes from slipping during a compression operation, and thereby prevent noise from being generated and increase durability. The variable capacity rotary compressor... |
12/05/2006 |
| 07140844 | Variable capacity rotary compressor A variable capacity rotary compressor including upper and lower compression chambers having different interior capacities, and a rotating shaft. Upper and lower eccentric cams are provided on the rotating shaft to be eccentric from the... |
11/28/2006 |
| 07134845 | Variable capacity rotary compressor A variable capacity rotary compressor including a housing to define therein two compression chambers having different capacities, a rotating shaft transmit ting a rotating force from a drive unit to the two compression chambers, two... |
11/14/2006 |
| 07104764 | Variable capacity rotary compressor A variable capacity rotary compressor is designed to prevent eccentric bushes from slipping during a compression operation, thus preventing noise from being generated and increasing durability. The compressor includes a housing to define... |
09/12/2006 |
| 07070395 | Variable capacity rotary compressor A variable capacity rotary compressor to prevent an eccentric bush and a locking pin from being deformed or worn out due to a variance in a pressure of a compression chamber as a rotating shaft rotates. The compressor includes upper and... |
07/04/2006 |
| 07059842 | Variable capacity rotary compressor A variable capacity rotary compressor including a hermetic casing, and a housing installed in the hermetic casing to define therein first and second compression chambers having different capacities. A compressor is placed in the first and... |
06/13/2006 |
| 07033149 | Medium pump adapted for ease of disassembly and assembly A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about the pump axle by running off an oblique... |
04/25/2006 |
| 07014427 | Capacity controller of capacity variable compressor A small sized and structurally simple capacity controller having a wide control range of a compressor with variable capacity adds a differential pressure to an inhalation pressure on an arbitrary level by a piston valve body actuated by a... |
03/21/2006 |
| 06962486 | Variable capacity rotary compressor A variable capacity rotary compressor is designed to make a pressure of a high-pressure side be uniformly applied to upper and lower ends of a roller of a low-pressure side, allowing the roller of the low-pressure side to be smoothly... |
11/08/2005 |
| 06935853 | Variable capacity rotary compressor A variable capacity rotary compressor, which is designed to make an internal pressure of a compression chamber, where an idle rotation is executed, be equal to an outlet side pressure of the rotary compressor, thus minimizing a rotating... |
08/30/2005 |
| 06863505 | Wind driven high pressure water pump This invention relates to a wind mill which is designed to convert rotational energy to mechanical energy to drive one or more pistons to raise a liquid such as water to an elevated location if necessary at a positive pressure. In... |
03/08/2005 |
| 06860724 | Rotary compressor A rotary compressor having a plurality of compression chambers and adapted to vary a compression capacity according to a direction of rotation of roller pistons within the compression chambers. A rotating shaft provided with a plurality... |
03/01/2005 |
| 06796773 | Variable capacity rotary compressor A variable capacity rotary compressor, which precisely controls variation of a compression capability into a desired discharge pressure, and which minimizes a resistance to rotation of a rotating shaft, and thus improves the capacity of... |
09/28/2004 |
| 06732716 | Metering valve arrangement A metering valve arrangement comprises a metering valve member which is angularly adjustable within a metering valve bore provided in a metering valve housing and an adjustment arrangement for adjusting the axial position of the metering... |
05/11/2004 |
| 06715995 | Hybrid compressor control method A method for controlling a hybrid compressor system is disclosed. The hybrid compressor system includes a variable displacement hybrid compressor that is selectively driven by one of an engine and an electric motor to cool a passenger... |
04/06/2004 |
| 06715997 | Housing for a rotary hydraulic unit with a servo piston A variable displacement hydraulic power unit has a housing and a rotating piston block with a rotatable axis and a servo piston bore having a reciprocal piston therein with the bore extending in a direction parallel to the rotatable axis... |
04/06/2004 |
| 06537038 | Supply pump having a variable drive gear unit A device for supplying liquids, particularly fuel, has a first drive shaft (32) and a supply pump (30) having at least one supply member (40) coupled to a second drive shaft (36), whereby the first drive shaft (32) drives the second drive... |
03/25/2003 |
| 06443706 | Hydrostatic axial piston machine with electro-hydraulic swash plate control A hydrostatic axial piston machine employs a swash plate construction in which the diagonal position of the swash plate can be controlled by at least one positioning piston pressurized with a control pressure. A control valve is in a line... |
09/03/2002 |
| 06406269 | Fuel pump A fuel pump comprises a pumping plunger reciprocable within a plunger bore under the action of a cam drive arrangement. The cam drive arrangement comprises first and second surfaces defining therebetween a chamber, the volume of which can... |
06/18/2002 |
| 06394560 | Wheel driven pump in a hydraulic brake system A hydraulic brake system for preventing wheel lock. The hydraulic brake system includes a variable displacement rotary pump that is activated by the rotation of an axle of a vehicle. A hydraulic control cylinder of the variable... |
05/28/2002 |
| 06341946 | Continuously adjustable telescopic pedal crank length A apparatus for gearless shifting, includes at least one crank, and an arm assembly, coupled to the at least one crank, for telescoping to adjust a length of the at least one crank, to selectively and controllably adjust a stroke length... |
01/29/2002 |
| 06296455 | Pump enable system and method A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control... |
10/02/2001 |
| 06206667 | Pump for dispensing resins A gear pump for metering resins is provided having the surfaces of interacting internal metal parts coated with a metal-based material to prevent seizing of the interacting moving parts as a result of resin curing therebetween. Parts made... |
03/27/2001 |
| 06203283 | Single piece yoke stroking device for bent axis type hydraulic pumps and variable motors A device for varying the displacement of a variable displacement bent axis unit includes a one-piece yoke having a bucket portion adapted to carry a cylinder block kit of the bent axis unit, a trunnion bearing portion for swing control on... |
03/20/2001 |
| 06183209 | Auxiliary pump means of an advance arrangement of a high pressure piston pump An advance arrangement is described including an advance piston slidable within a bore and defining, with the bore, a control chamber. A restricted passage permits fluid to escape from the control chamber at a controlled rate. A pump... |
02/06/2001 |
| 6162023 | Reciprocating cam actuation mechanism for a pump A multi-pump controlling means and method controls and drives two or more reciprocating pumps creating proportioned flows of fluids. The multi-pump controlling means in use is situated between a driving means, such as a double acting ram,... |
12/19/2000 |
| 6162024 | Constant horsepower continuously variable volume pump A preferred constant horsepower, variable volume hydraulic pump (10) includes a wobble plate (22) coupled with interior end of the pump drive shaft (18) configured for sequentially stroking a plurality of pistons (28,30) received in... |
12/19/2000 |
| 6155798 | Hydrostatic axial piston machine A hydrostatic axial piston machine employs a swash plate construction in which the diagonal position of the swash plate can be controlled by at least one positioning piston pressurized with a control pressure. A control valve is in a line... |
12/05/2000 |
| 6149396 | Apparatus for sequentially dispensing flowable materials Apparatus for sequentially dispensing flowable materials including a positive displacement metering-pump operated by an actuator capable of reciprocating pivotal movement within a range having an angular extent less than 180.degree.. A... |
11/21/2000 |
| 6135724 | Method and apparatus for metering multiple injection pump flow A system is provided for closed-loop control of a plurality of metering pumps driven by a single source of pressurized fluid. Feedback signals are generated that are proportional to output flow rate from each metering pump, such as... |
10/24/2000 |
| 6095760 | Fluid pumping apparatus with two-step load limiting control A fluid power pumping apparatus having a control system for limiting the power loading thereon to the power available from a motor (172) driving the apparatus, includes a variable displacement rotating piston pump (170). A compensating... |
08/01/2000 |
| 6053707 | Control device for slanting plate type variable capacity pump A control device is herein disclosed which comprises a drive piston 12p for changing the position of a slanting plate in a variable capacity pump 11, an electromagnetic proportional valve 13 for driving the drive piston, and a position... |
04/25/2000 |
| 6010309 | Control device for variable capacity pump A controller, for a variable capacity pump, prevents engine stalls due to rapid changes in operating load by increasing the pump absorption torque when the engine speed is high so as to increase the work amount and by reducing the pump... |
01/04/2000 |
| 5988985 | Method and apparatus for controlling compressor valves in a piston compressor A method and apparatus for reducing the loading impact between a sealing element in a suction valve of a piston compressor with a valve stop, wherein the sealing element is forcibly opened using a control device shortly before attaining... |
11/23/1999 |
| 5881629 | Control device for variable hydraulic machines A control device for variable hydraulic machines, and specifically for variable axial piston machines equipped with a servo system that is connected to a swash plate so that the discharge/displacement volume is infinitely variable. The... |
03/16/1999 |
| 5863187 | Two position rotary reciprocating pump with liquid displacement flow adjustment A rotary reciprocating pumping apparatus is provided with a positive two position adjustment feature which allows the piston stroke to be increased to a maximum and repeatably, automatically, returned to a second calibrated dispensing... |
01/26/1999 |
| 5725360 | Load sensor for variable displacement pumps A system for controlling a discharge flow rate of a variable displacement pump within an oil hydraulic circuit is disclosed. A bypass with a flow restricting valve couples the pressure control chamber of the discharge flow rate controller... |
03/10/1998 |