Coolable device for measuring through-flow processes of fluids

Patent metadata

Field	Value
Publication number	US-10816379-B2
Application number	US-201615759523-A
Country	US
Kind code	B2
Filing date	Sep 15, 2016
Priority date	Sep 15, 2015
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A device for measuring through-flow processes of fluids. The device includes an inlet, an outlet, a flow housing in which a fluid flows, a drivable displacement meter in the flow housing, a bypass line which bypasses the drivable displacement meter, a pressure difference sensor in the bypass line and in the flow housing, an evaluation and control unit which controls the drivable displacement meter based on a pressure difference existing at the pressure difference sensor, and a cooling channel in the flow housing which has a coolant flow therethrough.

First claim

What is claimed is:

1. A device for measuring through-flow processes of fluids, the device comprising:
an inlet;
an outlet;
a flow housing configured to have a fluid flow therethrough;
a drivable displacement meter arranged in the flow housing, the drivable displacement meter comprising a displacement chamber;
a bypass line configured to bypass the drivable displacement meter;
a pressure difference sensor arranged in the bypass line and in the flow housing;
an evaluation and control unit configured to provide a control of the drivable displacement meter based on a pressure difference existing at the pressure difference sensor;
a cooling channel configured to have a coolant flow therethrough arranged in the flow housing, the cooling channel comprising a section which is arranged to extend around the displacement chamber; and
a drive unit,
wherein,
the section of the cooling channel which is arranged to extend around the displacement chamber is formed as a groove in a surface of the flow housing directed to the drive unit, and
the groove is closed by the drive unit.

2. The device as recited in claim 1 , further comprising:
at least one heat tube via which heat from heat-generating components of the device can be transferred to the coolant flowing through the cooling channel.

3. The device as recited in claim 1 , wherein,
the drive unit comprises a housing of a magnetic clutch or of an electric motor, and
the groove is closed via the housing.

4. The device as recited in claim 3 , wherein the at least one heat tube is arranged to extend along the drive unit to the flow housing.

5. The device as recited in claim 4 , further comprising:
a control board,
wherein,
the electric motor comprises a stator, and
the at least one heat tube is arranged to extend at least along the stator of the electric motor and along the control board.

6. The device as recited in claim 4 , wherein the flow housing comprises a receiving opening into which the at least one heat tube protrudes.

7. The device as recited in claim 1 , further comprising:
a circuit board comprising a sensor which is configured to detect a position of the pressure difference sensor,
wherein,
the flow housing comprises a first flow housing part,
the drivable displacement meter is arranged in the first flow housing part of the flow housing, and
the at least one heat tube is arranged to extend from the first flow housing part to the circuit board.

8. The device as recited in claim 7 , wherein,
the flow housing further comprises a second flow housing part,
the first housing part is fastened to the second housing part, and
the pressure difference sensor is arranged in the second flow housing part.

9. The device as recited in claim 8 , wherein,
the first flow housing part and the second flow housing part each comprise a first receiving opening and a second receiving opening,
the at least one heat tube comprises a first heat tube and a second heat tube,
the first heat tube is arranged to extend from the first receiving opening of the first flow housing part into the first receiving opening of the second flow housing part, and
the second heat tube is arranged to extend from the second receiving opening of the first flow housing part into the second receiving opening of the second flow housing part.

10. The device as recited in claim 9 , wherein at least one of the first heat tube and the second heat tube is arranged to extend in parallel with the circuit board.

11. The device as recited in claim 7 , wherein,
the cooling channel comprises a coolant inlet and a coolant outlet,
the first flow housing part comprises a first side which is formed with the coolant inlet and the coolant outlet of the cooling channel,
the coolant inlet opens into an inlet channel section which is arranged to extend from an opposite side of the first flow housing part,
the coolant outlet opens into an outlet channel section which is arranged to extend from the opposite side of the first flow housing part, and
the inlet channel section and the outlet channel section are connected with each other via at least one transversal channel section.

12. The device as recited in claim 11 , wherein,
the at least one transversal channel section comprises a first transversal channel section and a second transversal channel section, the second transversal channel section being arranged to open into the outlet channel section,
the first transversal channel section is arranged to extend from the inlet channel section to the section of the cooling channel surrounding the displacement chamber, and
the section of the cooling channel surrounding the displacement chamber is arranged to extend into the second transversal channel section.

13. The device as recited in claim 1 , wherein a quantity of the coolant flowing through the cooling channel is controllable.

Assignees

• Avl List Gmbh

Inventors

• Derschmidt Otfried
• Kammerstetter Heribert
• Pross Manfred

Classifications

• F04C2/10

  of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member · CPC title

• G01F3/10 Primary

  Geared or lobed impeller meters · CPC title

• F04C2220/24

  for metering throughflow · CPC title

• F04C2/102

  the two members rotating simultaneously around their respective axes · CPC title

• F04C15/0096

  Heating; Cooling (of machines or engines in general F01P) · CPC title