公开(公告)号：WO01061193A1

公开(公告)日：2001-08-23

申请号：PCT/US2001/005413

申请日：2001-02-20

IPC: F04B1/28 ,  F04B1/29 ,  F04B7/04 ,  F04B49/22 ,  F04B49/00

CPC classification number: F04B7/04 ,  F04B1/28 ,  F04B49/225 ,  F04B2201/06011 ,  F04B2205/05

Abstract: A high pressure pump system (14) for use with a hydraulic engine system (10), such as a fuel injection system (10) or a compression release brake system, provides variable delivery of pressurized fluid using sleeve metering principles. The relative position of metering sleeves (56) with respect to pumping pistons (32) is controlled electro-hydraulically by a control circuit (60, 160). The control circuit (60, 160) receives pressurized fluid from the pump delivery gallery (50) or another high pressure area (50, 52) and, using a pressure reducer (64, 164), reduces the operating pressure within the control circuit (60, 160) to a substantially constant pressure lower than the pump output pressure. Lower operating pressure within the control circuit (60, 160) improves the manufacturability of the control circuit components and helps to achieve better control of the pump output.

Abstract translation: 与液压发动机系统（10）一起使用的高压泵系统（14），例如燃料喷射系统（10）或压缩释放制动系统，使用套筒计量原理提供加压流体的可变输送。 计量套管（56）相对于泵送活塞（32）的相对位置由控制电路（60,160）电液压地控制。 控制电路（60,160）从泵输送廊（50）或另一高压区（50,52）接收加压流体，并且使用减压器（64,164）来减少控制回路内的工作压力 60,160）到低于泵输出压力的基本恒定的压力。 控制电路（60,160）内的较低工作压力提高了控制电路部件的可制造性，有助于更好地控制泵的输出。

公开(公告)号：WO2011011221A2

公开(公告)日：2011-01-27

申请号：PCT/US2010/041691

申请日：2010-07-12

Applicant: CARRIER CORPORATION ,  LIFSON, Alexander ,  TARAS, Michael, F.

Inventor： LIFSON, Alexander ,  TARAS, Michael, F.

IPC: F04B49/22 ,  F04B49/03 ,  F04B1/04 ,  F04B39/08 ,  F04B39/10

CPC classification number: F04B39/08 ,  F04B27/0451 ,  F04B27/053 ,  F04B27/067 ,  F04B27/0673 ,  F04B27/24 ,  F04B35/01 ,  F04B39/1073 ,  F04B49/03 ,  F04B49/22 ,  F04B49/225 ,  F04B2201/06011 ,  F25B2400/074 ,  F25B2600/026 ,  F25B2600/2521

Abstract: A reciprocating compressor includes a first cylinder and a second cylinder, first and second suction cutoff unloader valve assemblies, and a controller. The first and second suction cutoff unloader valve assemblies are integral to the compressor and are capable of a rapid cycling to interrupt flow of refrigerant to the first and second cylinders. The controller operates at least one of the first suction cutoff unloader valve assembly or second suction cutoff unloader valve assembly in the rapid cycling and monitor a number of rapid cycles. In another aspect, a multi-stage compressor comprises a lower pressure stage and a higher pressure stage, and at least one suction cutoff unloader valve assembly capable of a rapid cycling to interrupt flow of refrigerant to a lower stage cylinder.

Abstract translation: 往复式压缩机包括第一气缸和第二气缸，第一和第二吸入截流卸载阀组件以及控制器。 第一和第二抽吸截流卸载阀组件与压缩机成一体并且能够快速循环以中断制冷剂流向第一和第二气缸的流动。 控制器在快速循环中操作第一抽吸截流卸载阀组件或第二抽吸截流卸载阀组件中的至少一个，并监测多个快速循环。 另一方面，多级压缩机包括低压级和高压级，以及至少一个吸入截流卸载阀组件，其能够快速循环以中断制冷剂流向下级汽缸。