公开(公告)号：US20190293073A1

公开(公告)日：2019-09-26

申请号：US16361525

申请日：2019-03-22

Applicant: GRUNDFOS HOLDING A/S

Inventor： Gert Friis ERIKSEN ,  Jens Kjær MILTHERS

IPC: F04D13/06 ,  F04D13/16 ,  F04D29/00

Abstract: A pump assembly includes an electrical drive motor (2) and an impeller which is connected to the drive motor (2) via a shaft (14). The shaft extends between the drive motor (2) and the impeller, through a seal arrangement with a fluid reservoir (22). A method is provided for detecting a concentration change in a fluid reservoir in the seal arrangement in the pump assembly. A concentration sensor (30) detects a concentration change in the fluid reservoir (22), and a second sensor (32) detects at least one further parameter of the fluid reservoir (22). The sensors are arranged on the fluid reservoir (22). The sensors are connected to an evaluation device (22). The evaluation device (34) is configured to carry out an evaluation of at least one reading of the concentration sensor (30), taking into account at least one reading which is detected by the second sensor (32).

公开(公告)号：US20160265792A1

公开(公告)日：2016-09-15

申请号：US15066313

申请日：2016-03-10

Applicant: GRUNDFOS HOLDING A/S

Inventor： Søren Emil SØRENSEN ,  Per HOVMAND ,  Steen MIKKELSEN ,  Jens Kjær MILTHERS ,  Kim Hulegaard JENSEN

IPC: F24D3/12 ,  F24F5/00 ,  F24D3/14

CPC classification number: F24D3/122 ,  F24D3/1075 ,  F24D3/125 ,  F24D3/14 ,  F24F5/0089 ,  Y02B30/24

Abstract: A hydraulic heating and/or cooling system hydraulic manifold is constructed in a modular manner with a main module (2). At least one load module (4) is connectable to the main module (2) and includes a hydraulic connection (22, 24) for a load circuit, and a closed-loop control device (26, 28) controlling flow through the load and for connection to an identically configured further load module (4). The at least one load module (4) includes a circuit board (44) which extends between a first (34) and a second axial end (36) of the load module (4) and which at its first (34) and second end (36) have electrical couplings (50, 52) which correspond to one another. The electrical coupling (52) at the second end (36) of the circuit board (44) can electrically conductively engage with an electrical coupling (50) at the first end (34) of the further identical load module (4).

Abstract translation: 液压加热和/或冷却系统液压歧管以模块化方式与主模块（2）构成。 至少一个加载模块（4）可连接到主模块（2），并且包括用于负载电路的液压连接（22,24）和控制通过负载的流动的闭环控制装置（26,28） 用于连接到相同配置的进一步加载模块（4）。 所述至少一个加载模块（4）包括在所述加载模块（4）的第一（34）和第二轴向端（36）之间延伸的电路板（44），并且在其第一（34）和第二端 （36）具有彼此对应的电耦合（50,52）。 电路板（44）的第二端（36）处的电耦合（52）可以与另一相同负载模块（4）的第一端（34）处的电耦合（50）导电接合。

公开(公告)号：US20160265689A1

公开(公告)日：2016-09-15

申请号：US15066242

申请日：2016-03-10

Applicant: GRUNDFOS HOLDING A/S

Inventor： Søren Emil SØRENSEN ,  Per HOVMAND ,  Steen MIKKELSEN ,  Jens Kjær MILTHERS ,  Kim Hulegaard JENSEN ,  Jan Carøe AARESTRUP

IPC: F16K51/00 ,  F16K31/02 ,  F16K27/00

CPC classification number: F16K51/00 ,  F16K27/00 ,  F16K31/02 ,  F16K37/005 ,  F24D3/1066 ,  F24D2220/0264

Abstract: A hydraulic valve includes a valve housing (4) with an inside that defines at least one first flow path (7), and with a valve insert (16) which is arranged in the inside of the valve housing (4). The valve insert (16) includes a movable valve element (14) situated in the first flow path (7). An infrared temperature sensor (46) is arranged on or in the valve housing (4) and is directed onto a surface of the valve insert (16) or a surface of a thermal conductor (48) connected to the valve insert. A hydraulic manifold may be provided with such a hydraulic valve.

Abstract translation: 液压阀包括具有限定至少一个第一流动路径（7）的内部的阀壳体（4），以及布置在阀壳体（4）内部的阀插入件（16）。 阀插件（16）包括位于第一流路（7）中的可动阀元件（14）。 红外温度传感器（46）布置在阀壳体（4）上或阀壳（4）中，并被引导到阀插件（16）的表面或连接到阀插件的热导体（48）的表面。 液压歧管可以设置有这种液压阀。