DE58909137D1 - Pressure switch. - Google Patents

Pressure switch.

Info

Publication number
DE58909137D1
DE58909137D1 DE58909137T DE58909137T DE58909137D1 DE 58909137 D1 DE58909137 D1 DE 58909137D1 DE 58909137 T DE58909137 T DE 58909137T DE 58909137 T DE58909137 T DE 58909137T DE 58909137 D1 DE58909137 D1 DE 58909137D1
Authority
DE
Germany
Prior art keywords
switching
switch housing
screwed
ram
pressure
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 - Fee Related
Application number
DE58909137T
Other languages
German (de)
Inventor
Kuno Skach
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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Application granted granted Critical
Publication of DE58909137D1 publication Critical patent/DE58909137D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2635—Means for adjustment of "ON" or "OFF" operating pressure by adjustment of a motion transmitting system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element

Abstract

The pressure switch has a switching piston (3) which can be acted on by a control spring (7) against a switching pressure. To adjust the switching pressure, the control spring is supported via a spring plate (10) against the switch housing (1), which spring plate is arranged such that it can be screwed on a threaded spindle (13). The threaded spindle (13) is supported on the switch housing (1), in an axially unmovable manner, and can be turned at random by means of a hexagonal section (15) projecting into free space. A ram (20), connected to the switching piston (3), has two individual stops (24 and 28) between which there engages the end (42) of a rotating lever (43). On the other hand, the switching ram (45) of a microswitch (46) rests on the rotating lever (43), the rotating lever (43) being spring-loaded in the switching direction of the microswitch (46). In order to adjust the switching hysteresis, the one individual stop (28) is formed by a nut (27) which can be screwed on the ram (20). The nut (27) cannot rotate and is coupled in an axially moving manner to a threaded sleeve (31) which is screwed to the switch housing (1). The screwing lifting movement of the threaded sleeve (31) is limited by stops. The threaded sleeve (31) can be rotated at random by means of a hexagonal section (34) projecting into free space. The two hexagonal sections (15 and 34) are located on opposite sides of the switch housing (1). The arrangement ensures separate adjustment, without sticking, of the switching pressure and of the switching hysteresis. <IMAGE>
DE58909137T 1988-02-15 1989-01-31 Pressure switch. Expired - Fee Related DE58909137D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3804685A DE3804685A1 (en) 1988-02-15 1988-02-15 PRESSURE SWITCH

Publications (1)

Publication Number Publication Date
DE58909137D1 true DE58909137D1 (en) 1995-05-04

Family

ID=6347458

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3804685A Withdrawn DE3804685A1 (en) 1988-02-15 1988-02-15 PRESSURE SWITCH
DE58909137T Expired - Fee Related DE58909137D1 (en) 1988-02-15 1989-01-31 Pressure switch.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3804685A Withdrawn DE3804685A1 (en) 1988-02-15 1988-02-15 PRESSURE SWITCH

Country Status (4)

Country Link
EP (1) EP0328926B1 (en)
AT (1) ATE120582T1 (en)
DE (2) DE3804685A1 (en)
HU (1) HUT51026A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006034637B4 (en) * 2006-07-24 2016-07-21 Robert Bosch Gmbh Hydraulic pressure switch
CN102623239B (en) * 2012-03-31 2014-04-09 潍坊金丝达环境工程股份有限公司 Non-contact type pressure relay

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1185900A (en) * 1957-11-08 1959-08-07 Control device sensitive to pressure variations of a fluid
FR1224907A (en) * 1959-02-03 1960-06-28 Telemecanique Electrique Improvements to so-called <<manostats>> switches controlled by the pressure of a fluid
US4037317A (en) * 1973-12-27 1977-07-26 Robertshaw Controls Company Method of making fluid operated electrical switch construction
FR2518310A1 (en) * 1981-12-15 1983-06-17 Telemecanique Electrique MANUFACTURER OF VOLUME REDUCED, IMPLEMENTED AND MOUNTED
HU187035B (en) * 1983-04-12 1985-10-28 Human Oltoanyagtermelo Process for production of liofilated absorbed combined vaccines

Also Published As

Publication number Publication date
EP0328926A3 (en) 1990-09-26
EP0328926A2 (en) 1989-08-23
ATE120582T1 (en) 1995-04-15
HUT51026A (en) 1990-03-28
DE3804685A1 (en) 1989-08-24
EP0328926B1 (en) 1995-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee