GB1364158A - Vacuum servo drive - Google Patents

Vacuum servo drive

Info

Publication number
GB1364158A
GB1364158A GB5389472A GB5389472A GB1364158A GB 1364158 A GB1364158 A GB 1364158A GB 5389472 A GB5389472 A GB 5389472A GB 5389472 A GB5389472 A GB 5389472A GB 1364158 A GB1364158 A GB 1364158A
Authority
GB
United Kingdom
Prior art keywords
vacuum
capsule
cylinder
port
diaphragm
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
GB5389472A
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of GB1364158A publication Critical patent/GB1364158A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00435—Driving arrangements for parts of a vehicle air-conditioning fluid or pneumatic
    • B60H1/00442—Driving arrangements for parts of a vehicle air-conditioning fluid or pneumatic using a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1364158 Vacuum operated actuators M BEHR [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR BEHR] 22 Nov 1972 [26 Nov 1971] 53894/72 Heading F1D Two vacuum servo capsules Fig. 1, are arranged so that the cylinder 1 of the upper capsule slides within the cylinder 3 of the lower capsule, thus the total displacement of a member 28 attached to the diaphragm closure 24 of the upper capsule is equal to the sum of the strokes of the two capsules. Vacuum is applied to the lower capsule through a port 6. This causes a diaphragm 16 to move down against a spring 18 taking with it the cylinder 1 and lower member 20 of the upper capsule. A vacuum port 5 for the upper capsule slides in a slot 3 during this movement. When vacuum is applied to the port 5 the diaphragm 15 descends taking the member 28 with it. In a second embodiment, Fig. 2 (not shown) both vacuum ports are in the base of the lower capsule and one communicates with the upper capsule through a flexible hose.
GB5389472A 1971-11-26 1972-11-22 Vacuum servo drive Expired GB1364158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2158786A DE2158786A1 (en) 1971-11-26 1971-11-26 VACUUM ACTUATOR

Publications (1)

Publication Number Publication Date
GB1364158A true GB1364158A (en) 1974-08-21

Family

ID=5826289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5389472A Expired GB1364158A (en) 1971-11-26 1972-11-22 Vacuum servo drive

Country Status (5)

Country Link
US (1) US3824903A (en)
DE (1) DE2158786A1 (en)
FR (1) FR2160964B1 (en)
GB (1) GB1364158A (en)
IT (1) IT971209B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5292031A (en) * 1976-01-28 1977-08-03 Hitachi Ltd Negative pressure reactor
JPS52122758A (en) * 1976-04-07 1977-10-15 Daicel Chem Ind Ltd Diaphgram for pressure regulator and preparation
DE2640561A1 (en) * 1976-09-09 1978-03-16 Daimler Benz Ag PRESSURIZED ACTUATOR
US4181065A (en) * 1977-03-11 1980-01-01 Schmelzer Corporation Two stage vacuum break
JPS6228534Y2 (en) * 1981-01-28 1987-07-22
FR2546984B1 (en) * 1983-06-03 1987-09-25 Valeo PRESSURE CONTROLLED DEVICE FOR MOVING AN ELEMENT BETWEEN AT LEAST THREE POSITIONS
US4831915A (en) * 1986-12-15 1989-05-23 Maremont Corporation Dual diaphragm three position actuator
US6003433A (en) * 1998-02-10 1999-12-21 Holland Neway International, Inc. Tamper-resistant brake actuator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081134A (en) * 1960-06-02 1963-03-12 Neway Equipment Co Operating structure for air brakes and the like
US3090359A (en) * 1960-12-05 1963-05-21 Transp Ind Inc Double air chamber brake cylinder
US3683753A (en) * 1971-02-09 1972-08-15 Avm Corp Dual diaphragm short travel actuator

Also Published As

Publication number Publication date
FR2160964B1 (en) 1976-08-20
FR2160964A1 (en) 1973-07-06
IT971209B (en) 1974-04-30
US3824903A (en) 1974-07-23
DE2158786A1 (en) 1973-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees