Apparatus for metering fluids

• US 5,542,450 A
• Filed: 06/10/1994
• Issued: 08/06/1996
• Est. Priority Date: 06/10/1994
• Status: Expired due to Term

• Current Assignee: Enraf Fluid Technology USA Incorporated
• Original Assignee: The Lubrizol Corporation (Berkshire Hathaway Incorporated)
• Inventors: Green, John E., King, Stanley C., Knop, Richard C., Gyde, Thomas R., Silzle, L. William Jr.
• Primary Examiner(s): CHAMBERS, A MICHAEL
• Application Number:
  US08/257,992
• Time in Patent Office: 788 Days
• Field of Search: 137/551, 137/559, 137/613, 137/614.2, 137/545, 137/549, 137/334, 251/366
• US Class Current: 137/614.2
• CPC Class Codes: B67D 7/20 of rotary type
• CPC Class Codes: G01F 15/185 Connecting means, e.g. bypass conduits
• CPC Class Codes: G01F 3/08 Rotary-piston or ring-piston meters
• CPC Class Codes: Y10T 137/6416 With heating or cooling of the system
• CPC Class Codes: Y10T 137/7976 Plural separating elements
• CPC Class Codes: Y10T 137/8158 With indicator, register, recorder, alarm or inspection means
• CPC Class Codes: Y10T 137/88054 Direct response normally closed valve limits direction of flow

Abstract

An apparatus for metering fluids is disclosed which comprises: a solid block having within the block a first fluid inlet; a filter assembly; a first fluid outlet; a first channel connecting the first fluid inlet to the filter assembly, and further connecting the filter assembly to the first fluid outlet; a second fluid inlet; a check valve assembly; a second fluid outlet; a second channel connecting the second fluid inlet to the check valve assembly, and further connecting the check valve assembly to the second fluid outlet; and a fluid meter connected between the first fluid outlet and the second fluid inlet.

Claims

1. An apparatus for metering fluids which comprises:

a solid block having within the block a first fluid inlet;

a filter assembly;

a first fluid outlet;

a first channel connecting the first fluid inlet to the filter assembly, and further connecting the filter assembly to the first fluid outlet;

a second fluid inlet;

a check valve assembly;

a second fluid outlet;

a second channel connecting the second fluid inlet to the check valve assembly, and further connecting the check valve assembly to the second fluid outlet; and

a fluid meter connected between the first fluid outlet and the second fluid inlet.

2. An apparatus according to claim 1 further comprising a channel connecting the check valve assembly to a third fluid outlet.

3. An apparatus according to claim 1 further comprising a channel connecting the inlet of the check valve assembly to a third fluid outlet.

4. An apparatus according to claim 3 further comprising a valve external to the block whereby fluid output from the second fluid outlet or the third fluid outlet may be controlled.

5. An apparatus according to claim 1 further comprising a heater in the block.

6. An apparatus according to claim 5 further comprising a temperature sensor and a controller.

7. An apparatus according to claim 1 further comprising a cooler in the block.

8. An apparatus according to claim 7 further comprising a temperature sensor and a temperature controller.

9. An apparatus according to claim 1 further comprising a heater and a cooler in the block.

10. An apparatus according to claim 9 further comprising a temperature sensor and a temperature controller.

11. An apparatus according to claim 1 wherein the filter assembly comprises a stainless steel screen.

12. An apparatus according to claim 1 wherein the fluid meter comprises a positive displacement meter.

13. An apparatus according to claim 1 wherein the fluid meter comprises a turbine flowmeter.

14. An apparatus according to claim 1 wherein the block is a solid block of stainless steel.

15. An apparatus according to claim 1 wherein the block is a solid block of stainless steel, and the fluid meter comprises a positive displacement meter.

16. An apparatus according to claim 1 further comprising one or more pressure relief valves.

17. An apparatus according to claim 1 wherein a control valve is placed before the meter.

18. An apparatus according to claim 1 wherein a control valve is placed after the meter.