GB512675A - Improvements in or relating to automatic output regulating devices for piston type compressors - Google Patents

Improvements in or relating to automatic output regulating devices for piston type compressors

Info

Publication number
GB512675A
GB512675A GB683838A GB683838A GB512675A GB 512675 A GB512675 A GB 512675A GB 683838 A GB683838 A GB 683838A GB 683838 A GB683838 A GB 683838A GB 512675 A GB512675 A GB 512675A
Authority
GB
United Kingdom
Prior art keywords
piston
reciprocated
control
pressure
pressure sensitive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB683838A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUERTH MASCHF
Original Assignee
SUERTH MASCHF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUERTH MASCHF filed Critical SUERTH MASCHF
Priority to GB683838A priority Critical patent/GB512675A/en
Publication of GB512675A publication Critical patent/GB512675A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

512,675. Fluid-pressure servomotor-control systems. JACKSON, L. MELLERSH-. (Maschinenfabrik Surth.). March 4, 1938, No. 6838. [Class 135] [Also in Group XXXV] An automatic continuous output regulating device for piston type compressors has the suction valves adapted to be held open during the whole or part of the compression stroke by a power device under the control of a regulating device one part of which is reciprocated by a pressure sensitive device while the other part is mechanically reciprocated in synchronism with the compressor strokes. In the form shown in Fig. 1, the pressure sensitive element comprises a differential member 1 having heads a, b connected to the casing by flexible sealing washers 2, 3. The smaller head a is subject to compressor outlet pressure while the larger head is subject to a reduced pressure produced by admitting compressor outlet pressure through a throttle 6 adjusted by a spring-loaded piston subject to compressor outlet pressure to the chamber beneath the head b, which chamber has an adjustable but normally fixed escape orifice. A piston valve 5 reciprocated by a crank disc works in a ported sleeve attached to the pressure sensitive member to control the supply and exhaust of compressed gaseous medium to a piston 9. Movement of the piston 9 is transmitted to a piston 11 for holding the suction valve 12 open by a column of liquid 10 maintained by a hydraulic accummulator 15 discharging through a non-return valve 14. In a modification the sleeve is reciprocated by the crank disc. In a further modification the piston 9 and associated control is duplicated, two liquid columns fed from a single accummulator being employed to transmit the regulating impulse to a double-acting piston. In the form shown in Fig. 5 electric contacts 20 attached to the pressure sensitive member co-operate with a contract 19 reciprocated by the crank disc to control the operation of an electromagnet 21 acting on the suction valve 12.
GB683838A 1938-03-04 1938-03-04 Improvements in or relating to automatic output regulating devices for piston type compressors Expired GB512675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB683838A GB512675A (en) 1938-03-04 1938-03-04 Improvements in or relating to automatic output regulating devices for piston type compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB683838A GB512675A (en) 1938-03-04 1938-03-04 Improvements in or relating to automatic output regulating devices for piston type compressors

Publications (1)

Publication Number Publication Date
GB512675A true GB512675A (en) 1939-09-22

Family

ID=9821670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB683838A Expired GB512675A (en) 1938-03-04 1938-03-04 Improvements in or relating to automatic output regulating devices for piston type compressors

Country Status (1)

Country Link
GB (1) GB512675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211634A (en) * 1987-10-28 1989-07-05 Stal Refrigeration Ab A control section for a control system for controlling the internal volume of a rotary compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211634A (en) * 1987-10-28 1989-07-05 Stal Refrigeration Ab A control section for a control system for controlling the internal volume of a rotary compressor
GB2211634B (en) * 1987-10-28 1992-03-25 Stal Refrigeration Ab A combination of a rotary compressor and a control system

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