| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | METHOD IN A MILKING SYTEM FOR CREATING A REQUIRED VACUUM LEVEL AND COMPUTER PROGRAM PRODUCTS | US12450069 | 2008-04-02 | US20100018465A1 | 2010-01-28 | Henrik Idensjö |
| The invention relates to a method in a milking system for creating a required vacuum level, the milking system comprising at least two variable speed vacuum pumps P1, P2. The method comprises the steps of: utilizing a first variable speed vacuum pump P1 for creating the required vacuum level within the milking system; monitoring the vacuum level requirement within the milking system, and when the vacuum level requirement of the milking system is such that the speed of the first variable speed vacuum pump P1 reaches a first speed threshold then: starting a second variable speed vacuum pump P2, and running the first and second variable speed vacuum pumps P1, P2 in parallel for creating the required vacuum level. The invention also relates to computer program products. | ||||||
| 122 | Multicylindrical rotary compressor, compression system, and freezing device using the compression system | US11294521 | 2005-12-06 | US07566204B2 | 2009-07-28 | Hirotsugu Ogasawara; Takahiro Nishikawa; Masayuki Hara; Hiroyuki Yoshida; Akira Hashimoto |
| In a multicylindrical rotary compressor constituted to be usable by urging an only first vane with respect to a first roller by means of a spring member to switch a first operation mode in which first and second rotary compression elements perform compression works and a second operation mode in which substantially the only first rotary compression element performs the compression work, an object is to reduce generation of collision noises due to collision of the second vane with the second roller at a time when the first operation mode is switched to the second operation mode, and a pressure in a back-pressure chamber of the second vane is discharged on a low-pressure chamber side in a second cylinder in a case where the first operation mode is switched to the second operation mode. | ||||||
| 123 | Pump unit with multiple operation modes | US10516912 | 2003-06-02 | US07399165B2 | 2008-07-15 | Hitoshi Horiuchi; Yoshiyuki Ochi; Jun Nakatsuji |
| A first pump of small capacity and a second pump of large capacity are connected directly with each other and are driven by a variable-speed motor. The rotational speed of the variable-speed motor is controlled by a control device. In a first mode, a first discharge line of the first pump and a second discharge line of the second pump are disconnected with each other, making the first pump unloaded. With the first pump in the unloaded state, a constant-horsepower operation is performed, where the discharge fluid is brought into a high pressure by relatively small torque. In a second mode, the first discharge line and the second discharge line are connected with each other by a switching valve. With the first and second discharge lines in the connected state, a constant-horsepower operation is performed, where a high flow rate of discharge fluid is discharged at relatively low rotational speed. | ||||||
| 124 | OPERATION CONTROL DEVICE AND METHOD OF VACUUM PUMPS | US11853942 | 2007-09-12 | US20080063534A1 | 2008-03-13 | Takamitsu Nakayama; Kazuaki Satoh |
| An operation control devices and operation methods thereof so as to eliminates the difficulties in such a case of introduction of vacuum sensors and/or inverter control is disclosed. The disclosure relates to a control of plural sets of vacuum pumps. In order to comply with the subjects to overcome the difficulties, the disclosure proposes to utilize current detection approach instead of direct pressure detection approach, while showing how to estimate a vacuum degree achieved under the operation of the pumps as well as presenting a method on the control of the number of pumps. It is also described how organically a current detecting device, a vacuum degree estimating device, a working pump control device and related methods to satisfy the subjects are linked. The usefulness of the disclosure is also revealed. | ||||||
| 125 | Refrigeration cycle system | US10580866 | 2004-12-02 | US20070154329A1 | 2007-07-05 | Izumi Onoda |
| A refrigeration cycle system is provided with a two-cylinder type rotary compressor having one compression mechanism which includes a switching mechanism for switching a back surface side of a blade between a low pressure mode and a high pressure mode and controlling the inner space of the cylinder chamber to the high pressure upon switching at the low pressure mode. In a high load state, a normal operation is performed by switching the pressure of the back surface side of the blade of the one compression mechanism at the high pressure mode. In a low load state, an uncompressed operation is performed by switching the pressure of the back surface side of the blade of the one compression mechanism at the low pressure mode and by controlling the inner space of the cylinder chamber to the high pressure to move the blade away from the roller. This makes it possible to provide the refrigeration cycle system which generates no noise and causes no damage to the blade, thus allowing the uncompressed operation to be continuously performed. | ||||||
| 126 | Variable capacity compressor and starting method thereof | US11185763 | 2005-07-21 | US20060193732A1 | 2006-08-31 | Sung Cho; Seung Lee; Chun Sung |
| A variable capacity compressor and a starting method thereof. The variable capacity compressor includes a four-way valve having a suction gas distribution function and an idling chamber high-pressure injection function, thereby achieving a reduced manufacturing cost and an improved reliability incurred by the use of a validated component. Further, a boosting algorithm is applicable to obtain a driving source of the four-way valve in an initial parallel pressure state. In the variable capacity compressor comprising a plurality of compression chambers having different capacities and a four-way valve to distribute a suction refrigerant gas into the plurality of compression chambers, a starting method thereof comprises determining whether the variable capacity compressor is in an initial starting mode, and controlling the four-way valve to generate a pressure difference among the plurality of compression chambers to move a piston of the four-way valve from an initial parallel pressure state if the variable capacity compressor is determined to be in the initial starting mode. | ||||||
| 127 | Multicylindrical rotary compressor, compression system, and freezing device using the compression system | US11294521 | 2005-12-06 | US20060140802A1 | 2006-06-29 | Hirotsugu Ogasawara; Takahiro Nishikawa; Masayuki Hara; Hiroyuki Yoshida; Akira Hashimoto |
| In a multicylindrical rotary compressor constituted to be usable by urging an only first vane with respect to a first roller by means of a spring member to switch a first operation mode in which first and second rotary compression elements perform compression works and a second operation mode in which substantially the only first rotary compression element performs the compression work, an object is to reduce generation of collision noises due to collision of the second vane with the second roller at a time when the first operation mode is switched to the second operation mode, and a pressure in a back-pressure chamber of the second vane is discharged on a low-pressure chamber side in a second cylinder in a case where the first operation mode is switched to the second operation mode. | ||||||
| 128 | Capacity-changing unit of orbiting vane compressor | US11208655 | 2005-08-23 | US20060127257A1 | 2006-06-15 | Seon-woong Hwang; Dong-won Yoo |
| Disclosed herein is a capacity-changing unit of an orbiting vane compressor that is capable of selectively accomplishing compression or communication in inner and outer compression chambers of a cylinder through simple manipulation of a valve, thereby easily changing the capacity of the orbiting vane compressor. The capacity-changing unit includes a smart control valve comprising a valve body disposed on the cylinder, a first actuating part formed at one side of the valve body for performing compression and communication in the inner compression chamber of the cylinder, and a second actuating part formed at the other side of the valve body for performing compression and communication in the outer compression chamber of the cylinder. | ||||||
| 129 | Variable capacity rotary compressor | US11102853 | 2005-04-11 | US20060034720A1 | 2006-02-16 | Jeong Lee |
| 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 lower compression chambers. The rotary shaft includes a fixing hole and a latch pin which includes a head part is fixed to the rotary shaft through the fixing hole. The head part of the latch pin can be forcibly fit into a forcible fitting hole of the fixing hole. The head part is spaced apart from the inner circumference of the forcible fitting hole in the axial direction of the rotary shaft when the head part is forcibly fitted in the forcible fitting hole, so that a forcible fitting force is not applied in the axial direction of the rotary shaft. | ||||||
| 130 | Rotary closed type compressor and refrigerating cycle apparatus | US11222484 | 2005-09-07 | US20060002809A1 | 2006-01-05 | Isao Kawabe; Kazuo Mochizuki; Shoichiro Kitaichi; Koji Hirano; Izumi Onoda; Kazu Takashima |
| A rotary closed type compressor is configured such that an inside of a case becomes high pressure, and the rotary closed type compressor comprises a first cylinder and a second cylinder having cylinder chambers in which eccentric rollers are housed, respectively, vanes which divide the cylinder chamber into two sections, respectively, and vane chambers in which back-face side end portions of the vanes are housed, respectively. The vane on the first cylinder side is pressed and biased by a spring member provided in the vane chamber, and the vane on the second cylinder side is pressed and biased according to pressure difference between case internal pressure introduced to the vane chamber and suction pressure or discharge pressure introduced to the cylinder chamber. | ||||||
| 131 | Multicylinder rotary compressor and compressing system and refrigerating unit provided with same | US11079929 | 2005-03-14 | US20050214137A1 | 2005-09-29 | Masazumi Sakaniwa; Akira Hashimoto; Masayuki Hara; Takahiro Nishikawa; Hirotsugu Ogasawara; Akihiro Suda |
| The present invention relates to a multicylinder rotary compressor and a compressing system and a refrigerating unit each provided with the multicylinder rotary compressor. Two-stage (cylinder) rotary compressor provides a motor-operating element and a rotary compressing element in a closed vessel, and the rotary compressing element includes a first rotary compressing element and a second rotary compressing element. This two-stage rotary compressor provides a refrigerant gas switching means comprised of a communicating pipe one end of which is opened in the closed vessel and the other end of which is opened in a back pressure portion for a vane having no spring in the second rotary compressing element, a branch pipe provided in the midway portion of this communicating pipe and a three-way valve attached to a branch point in the branch pipe. Further, a through hole in the second rotary compressing element is closed with a sealing member. During high rotation speed a high pressure refrigerant gas, which flows from the closed vessel to the communicating pipe is supplied to the back pressure portion for the vane so that the second rotary compressing element is made in an operation mode, and during low rotation speed the high pressure refrigerant gas is relieved through the branch pipe so as not to supply the back pressure portion for the vane with the refrigerant gas, whereby the second rotary compressing element is made in a non-operation mode. The present invention forms a compressing system and a refrigerating unit each using the two-stage rotary compressor. | ||||||
| 132 | Vacuum pumping system | US11078249 | 2005-03-11 | US20050201882A1 | 2005-09-15 | Cristian Maccarrone; Massimiliano Titolo |
| A vacuum pumping system has at least two vacuum pumping devices with vacuum pumps, local electronic control units for monitoring and controlling the operating parameters of the pumps and a control station remotely located relative to the vacuum pumping devices. The control station is equipped with a remote control unit. The remote control unit and local control units are equipped with wireless communication modules for communicating data and commands and controlling the operation of the vacuum pumping devices. The wireless communication module of the remote control unit directly communicates with the wireless communication modules of the local control units. | ||||||
| 133 | Variable capacity rotary compressor | US10733238 | 2003-12-12 | US06796773B1 | 2004-09-28 | Jin Kyu Choi; Seung Kap Lee; Cheol Woo Kim |
| 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 the rotary compressor. The rotary compressor includes, a hermetic casing, a housing, disposed in the hermetic casing, having two compressing chambers having different capacities, a rotating shaft rotatably disposed in the two compressing chambers, two eccentric units mounted on the rotating shaft in the two compressing chambers, the two eccentric units being operated in opposite manners such that when either one of the two eccentric units is locked in an eccentric state to perform a compressing operation, the other eccentric unit is released from the eccentric state to release the compressing operation, two roller pistons fitted on outer surfaces of the first and second eccentric units, two vanes provided in the two compressing chambers to be radially moved while being in contact with the first and second roller pistons, and a pressure control unit to allow a discharging pressure to be applied to either one of the two compressing chambers, where an idle rotating operation is performed. | ||||||
| 134 | Systems and methods for remotely controlling a machine | US09163704 | 1998-09-30 | US06529590B1 | 2003-03-04 | Steven D. Centers |
| Systems and methods, including modem communications software, for controlling and/or monitoring one or more machines having an control board, such as, for example, compressors, from a remote location is disclosed. The systems and methods provide for each machine being controlled and/or monitored by an operator from the remote location. The machines are controlled and/or monitored using the modem communications software, presently preferably, resident on a personal computer (PC) at the remote location. The methods and systems, including the modem communications software, provide communications between the PC and the machine(s) through transmissions over a communications link established through a modem from a remote PC to a modem connected to the control board of a machine to provide instructions to or receive information from the machine control board and for the remote diagnosis of operating problems, such as, for example, compressor system operating problems, among other features. | ||||||
| 135 | Dual gerotor pump for use with automatic transmission | US09488319 | 2000-01-20 | US06386836B1 | 2002-05-14 | Stephen D. Johnson |
| A dual gerotor pump is used for an automatic transmission. A dual gerotor pump which is driven by a central drive mechanism has a first chamber which continuously provides transmission fluid to the automatic transmission. The pump also has a second pumping chamber which selectively directs fluid to the automatic transmission when necessary. A valve mechanism is provided to divert fluid from the second pumping chamber back to the second pumping chamber so that it can recirculate thereby decreasing fluid pressure to the automatic transmission when it is not required. | ||||||
| 136 | System and methods for controlling rotary screw compressors | US09377546 | 1999-08-19 | US06244824B1 | 2001-06-12 | Steven D. Centers; Paul Burrell |
| An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions. | ||||||
| 137 | Heat exchanger | US690266 | 1991-04-24 | US5170636A | 1992-12-15 | Toshiaki Hitosugi |
| A heat exchanger includes a rotary compressor having two compression pumps and a motor for driving the compressor pumps, a condenser connected to the rotary compressor, a regulator connected to the condenser and with an evaporator connected to the regulator. An electric power is supplied from an inverter circuit to the motor of the rotary compressor. The output frequency of the inverter circuit is controlled by a frequency controlling device according to a heat load of a heat exchange circuit subjected. The rotary compressor is operated according to a parallel operation pattern in which the two compression pumps are actuated or a single operation pattern in which a single compression pump is actuated. Either one of the two operation patterns is selected by a selecting device according to the operational condition of the heat exchanger. The switching between the single operation and the parallel operation is performed by a switching device according to the output signal of the selecting device. | ||||||
| 138 | Method of controlling operation of a plurality of compressors | US689071 | 1985-01-04 | US4580947A | 1986-04-08 | Yozo Shibata; Mitsuji Konishi |
| Disclosed is a method of controlling the operation of a plurality of compressors each having at least one capacity controller capable of changing the discharge rate of the compressor in a stepped manner in such a manner as to provide a total discharge rate just meeting the load demand which varies momentarily. In this method, the control system is divided into a capacity control loop for responding to comparatively small load variance and a compressor control loop for responding to a comparatively large load variance. The capacity control loop is further divided into a sub-loop for capacity controllers of a compressor which has worked longest and which is to be stopped first and a sub-loop for the capacity controllers of other compressors. The unloading operation is commenced preferentially with the sub-loop for the capacity controllers of the compressor to be stopped first, while the on-loading operation is made first with the sub-loop for the capacity controllers of other compressors. | ||||||
| 139 | Method and apparatus for main fuel pumping system having backup pump | US583353 | 1984-02-24 | US4553914A | 1985-11-19 | Godwin L. Noell; Jack G. Sundberg |
| A pumping system has a main pumping unit (14) and a backup pumping unit (16) mounted in a common housing (4) and adapted to be driven by a drive member (44). The main pumping unit is connected to the drive member by a main drive coupling (68) which incorporates a reduced shear section (76) designed to fail upon a jamming or seizure of the main pumping unit. A backup drive coupling (78) connected to the backup pumping unit is adapted to be axially displaced and threadably connected to the drive member after stoppage of the main pumping unit. An actuation device (18) functions to axially displace the backup drive coupling to establish threaded engagement. When the backup drive coupling is engaged with the drive member, the backup pumping unit will provide flow. | ||||||
| 140 | Power plant for various vehicles | US23739572 | 1972-03-23 | US3828555A | 1974-08-13 | CAPDEVIELLE P |
| In this power plant for self-propelled vehicles two pipelines are inserted between a high-pressure tank and a low-pressure tank containing hydraulic fluid. A hydraulic motor is inserted in the first pipe line and is adapted to actuate the driving shaft of the vehicle through a freewheel coupling. A motor-pump unit is inserted in the other pipe line. This motor-pump unit has a relatively low-rated power output and is continuously operating at the same speed. This invention is advantageously applicable to automotive vehicles intended for service requiring frequent stops.
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