公开(公告)号：WO2007021656A3

公开(公告)日：2007-05-10

申请号：PCT/US2006030778

申请日：2006-08-08

Applicant: ENVIROTECH PUMPSYSTEMS INC ,  PAULIN GREG

Inventor： PAULIN GREG

IPC: F04D29/04

CPC classification number: F04D29/20

Abstract: An impeller for a self-primer pump is structured for attachment to the terminal end of a drive shaft by means of a bolt that is configured to provide a low profile such that the eye of the impeller is rendered capable of processing larger solids that are entrained in fluid.

Abstract translation: 用于自底漆泵的叶轮被构造成通过螺栓连接到驱动轴的终端，该螺栓被构造成提供低轮廓，使得叶轮的眼睛能够处理夹带的较大固体 在流体中。

公开(公告)号：WO2006127854A3

公开(公告)日：2006-11-30

申请号：PCT/US2006/020159

申请日：2006-05-24

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  SHAW, James, G.

Inventor： SHAW, James, G.

IPC: B02C23/36

Abstract: A cutting ring element for a centrifugal pump of the chopper type comprises a ring-like structure having at least one cutting member positioned along the ring-like structure and extending outwardly therefrom. The cutting ring element is structured to be positioned adjacent the drive side of an impeller having cutting structures associated with the drive side of the impeller which interact with the cutting ring element to chop and reduce the size of entrained solids in a pumped fluid, or slurry, to prevent such solids from infiltrating behind the impeller.

公开(公告)号：WO2005008067A3

公开(公告)日：2005-04-07

申请号：PCT/US2004023105

申请日：2004-07-16

Applicant: ENVIROTECH PUMPSYSTEMS INC ,  DOERING BRANDON R ,  HARMON JAMES C

Inventor： DOERING BRANDON R ,  HARMON JAMES C

IPC: F01D5/12 ,  F04B20060101 ,  F04D7/02 ,  F04D7/04 ,  F04D11/00 ,  F04D25/00 ,  F04D29/22

CPC classification number: F04D29/2288 ,  F04D7/045

Abstract: A pump impeller (10) and associated cutting elements (12) are disclosed which are especially designed and positioned near the periphery of the impeller to reduce the size of entrained solids in a pumped fluid, or slurry, and to expel such solids from the impeller, drive shaft (22) and associated sealing mechanisms (30).

Abstract translation: 公开了一种泵叶轮（10）和相关联的切割元件（12），其特别设计和定位在叶轮的周边附近，以减小泵送的流体或浆料中夹带的固体的尺寸，并从叶轮排出这样的固体 ，驱动轴（22）和相关联的密封机构（30）。

公开(公告)号：WO2005009619A3

公开(公告)日：2005-02-03

申请号：PCT/US2004/023512

申请日：2004-07-22

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  DOERING, Brandon, R. ,  HARMON, James, C.

Inventor： DOERING, Brandon, R. ,  HARMON, James, C.

IPC: F04D1/00

Abstract: Axial adjustment apparatus is provided in a centrifugal pump to effect adjustment of the impeller relative to adjacent pump elements. Specifically preferred is adjustment apparatus in a chopper pump that provides adjustment of the impeller relative to a chopper plate to facilitate continuous efficient cutting of solids by the pump. The adjustment apparatus may also include adjustment structure for providing axial adjustment between the impeller and a plate-like member positioned adjacent the drive side of the impeller to effect adjustment of cutting tolerances in cutting elements positioned between the impeller and plate­like member. The invention further includes a seal mechanism configured and positioned to retain the seal height of the seals throughout continuous adjustment of the impeller.

公开(公告)号：WO2015200129A1

公开(公告)日：2015-12-30

申请号：PCT/US2015/036686

申请日：2015-06-19

Applicant: ENVIROTECH PUMPSYSTEMS, INC.

Inventor： NEILSON, Bryce

IPC: F04D1/04 ,  F04D29/40 ,  F04D29/42

CPC classification number: F04D1/12 ,  F04D13/12 ,  F04D13/14 ,  F04D29/22

Abstract: A rotor assembly for a centrifugal pump includes a rotor and a rotor cover, defining a fluid chamber therebetween, and having openings or channels that are provided in either the rotor cover or the rotor, or both, to direct fluid from the fluid chamber into the rotor or rotor cover of the rotor assembly to provide reduction of increased pressure that is experienced within the fluid chamber, especially at or near the center of the fluid chamber.

Abstract translation: 用于离心泵的转子组件包括转子和转子盖，在其间限定流体室，并且具有设置在转子盖或转子中的开口或通道，或两者，以将流体从流体室引导到 转子组件的转子或转子盖，以提供在流体室内，特别是在流体室的中心处或附近经历的增加的压力的减小。

公开(公告)号：WO2007021656A2

公开(公告)日：2007-02-22

申请号：PCT/US2006/030778

申请日：2006-08-08

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  PAULIN, Greg

Inventor： PAULIN, Greg

IPC: F04D29/00

CPC classification number: F04D29/20

Abstract: An impeller for a self-primer pump is structured for attachment to the terminal end of a drive shaft by means of a bolt that is configured to provide a low profile such that the eye of the impeller is rendered capable of processing larger solids that are entrained in fluid.

Abstract translation: 用于自底漆泵的叶轮被构造成通过螺栓附接到驱动轴的终端，所述螺栓被构造成提供低轮廓，使得叶轮的眼睛能够处理被夹带的较大固体 流体。

公开(公告)号：WO2007019560A2

公开(公告)日：2007-02-15

申请号：PCT/US2006/031199

申请日：2006-08-10

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  PAULIN, Greg ,  SHAW, James, G. ,  HARMON, James ,  NORTHRUP, James

Inventor： PAULIN, Greg ,  SHAW, James, G. ,  HARMON, James ,  NORTHRUP, James

IPC: F04B53/00

CPC classification number: F04D15/0005 ,  F04D9/008 ,  F04D29/628 ,  Y10T137/79

Abstract: A check valve of the flapper type structured for use in a self-primer pump is structured for attachment to the pump casing in a manner that facilitates servicing of the check valve, and includes securement means that are positioned external to the casing and a flapper that is located through an opening of the casing in a manner that enables the servicing of the valve without dropping the flapper or the hardware into the interior of the pump.

Abstract translation: 构造成用于自引爆泵的挡板式止回阀被构造成以便于维修止回阀的方式附接到泵壳体，并且包括被定位的固定装置 外壳的外部和挡板，挡板穿过外壳的开口，以便能够在不将挡板或硬件落入泵内部的情况下维修阀门。

公开(公告)号：WO2006096448A2

公开(公告)日：2006-09-14

申请号：PCT/US2006/007418

申请日：2006-03-02

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  SHAW, James, G. ,  SIMON, Joris

Inventor： SHAW, James, G. ,  SIMON, Joris

IPC: F04D29/44

CPC classification number: F04D29/426 ,  F04D1/12

Abstract: In a centrifugal pump of the pitot tube type, a replaceable wear ring is positioned in the rotating assembly of the pump in that area of the rotating case which is most subject to erosion from the processing of abrasive fluids by the pitot tube pump. The replaceable wear ring can be easily and quickly replaced when eroded, thereby eliminating the need to replace the rotating case of the pump and eliminating the need for costly and time-consuming rebalancing of the pump.

Abstract translation: 在皮托管型的离心泵中，可替换的耐磨环位于旋转壳体的旋转组件中，旋转壳体的最大部分受皮托管泵对磨料流体的加工侵蚀。 可更换的耐磨环可以在被腐蚀时容易且快速地更换，从而无需更换泵的旋转外壳，并且消除了对泵的昂贵且耗时的重新平衡的需要。

公开(公告)号：WO2005005839A3

公开(公告)日：2005-01-20

申请号：PCT/US2004/021194

申请日：2004-07-01

Applicant: ENVIROTECH PUMPSYSTEMS, INC. ,  SHAW, James, G.

Inventor： SHAW, James, G.

IPC: F04D29/30

Abstract: A pump impeller for use in industrial pumps of the centrifugal type is disclosed in which the vanes of the pump impeller are particularly configured to maintain pumping efficiency as the vane wears over continuous use or operation of the pump. The impeller vane is configured to continuously present an aggressive cutting surface at the leading edge of the vane even though the vane may become degraded and worn through continuous use.

公开(公告)号：WO2004072476A2

公开(公告)日：2004-08-26

申请号：PCT/US2004/003627

申请日：2004-02-10

Applicant: ENVIROTECH PUMPSYSTEMS, INC.

Inventor： QUINN, Joel

IPC: F04B

CPC classification number: F16J15/3404 ,  F04D29/126 ,  F16J15/3484

Abstract: A sealing mechanism for a fluid pump comprises first and second seal members which are coaxially and radially oriented relative to each other, and are positioned between the rotating and non-rotating elements of the fluid pump to maintain a competent seal which is simple to assembly, maintain and repair or replace, and which also improves pump operation when compared to known sealing mechanisms for fluid pumps.

Abstract translation: 用于流体泵的密封机构包括第一和第二密封构件，该第一和第二密封构件相对于彼此同轴且径向定向，并且位于流体泵的旋转和非旋转元件之间，以保持易于组装的主管密封件， 维护和修理或更换，并且与已知的流体泵密封机构相比，还可改善泵的运行。