GB1416473A - Safety device operable by engine lubricant pressure - Google Patents

Safety device operable by engine lubricant pressure

Info

Publication number
GB1416473A
GB1416473A GB1152173A GB1152173A GB1416473A GB 1416473 A GB1416473 A GB 1416473A GB 1152173 A GB1152173 A GB 1152173A GB 1152173 A GB1152173 A GB 1152173A GB 1416473 A GB1416473 A GB 1416473A
Authority
GB
United Kingdom
Prior art keywords
spring
piston
brake
pressure
engine
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
GB1152173A
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.)
Merwe I F V D
Original Assignee
Merwe I F V D
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 Merwe I F V D filed Critical Merwe I F V D
Publication of GB1416473A publication Critical patent/GB1416473A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/18—Indicating or safety devices
    • F01M1/20—Indicating or safety devices concerning lubricant pressure
    • F01M1/22—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure
    • F01M1/24—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure acting on engine fuel system

Abstract

1416473 Regulating I C engines; stopping engines I F VAN DER MERWE 9 March 1973 [16 March 1972] 11521/73 Headings F1B and F1K A safety device 10 for a liquid lubricated engine comprises a first member 28, 30 movable from a first position against the bias of a spring 58 by lubricant pressure acting through an inlet 70 and a second member 48, 52 which is movable from a first position against the bias of a spring 66 when a predetermined operation, e.g. engine starting or operation of the engine clutch or brake, takes place. A member 64 moved with the first member 28, 30 acts on balls 82, received in a recess 84 on the second member 48, 52 to lock the second member in a second position when the first member is in a second position. The spring 66 provides a greater biasing force than the spring 58 and when the balls 82 are released by the member 64 due to a fall in lubricant pressure both springs act to return the first member to its first position. The part 30 of the first member may act as a valve between a fuel outlet 24 and an inlet 26, apertures 42 and 46 providing a limited fuel flowpath when the second member is displaced from its first position. A relay (R), Fig. 6 (not shown), may be actuated to interrupt the power supply to spark-plugs (S) and operate a warning hooter by a contact bridging member (98), Fig. 3 (not shown), on the second member or a contact bridging member (102), Fig. 4 (not shown) on the first member. A time delay may be included in the relay circuit so that the relay is inoperable for a period after engine starting. The piston 52 of the second member may be subject to air-pressure by a piston 74 which is pressurized by a pneumatic cylinder (C), Fig. 5 (not shown), when a lever (L) is operated for engine starting or by pneumatic or hydraulic pressure from a brake or clutch master cylinder when the brake or clutch is operated. The pressure chamber 54 of the piston 52 may be supplied with air through a check-valve 80 and a bleed past the valve permits air to escape from the chamber over a period of time so that the spring 66 may return the piston to its first position if not locked in its second position.
GB1152173A 1972-03-16 1973-03-09 Safety device operable by engine lubricant pressure Expired GB1416473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA721822A ZA721822B (en) 1972-03-16 1972-03-16 Oil pressure detector

Publications (1)

Publication Number Publication Date
GB1416473A true GB1416473A (en) 1975-12-03

Family

ID=25564644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1152173A Expired GB1416473A (en) 1972-03-16 1973-03-09 Safety device operable by engine lubricant pressure

Country Status (5)

Country Link
US (1) US3853110A (en)
AU (1) AU5322673A (en)
DE (1) DE2312891A1 (en)
GB (1) GB1416473A (en)
ZA (1) ZA721822B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399785A (en) 1981-08-25 1983-08-23 Sentinel Manufacturing Company, Incorporated Engine protective device responsive to low oil pressure
US4462352A (en) * 1981-08-25 1984-07-31 Sentinel Manufacturing Co., Inc. Engine protective device responsive to low oil pressure
US4476825A (en) * 1981-08-25 1984-10-16 Sentinel Manufacturing Company, Inc. Engine protective apparatus with remote override

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1555318A (en) * 1975-09-27 1979-11-07 Lucas Industries Ltd Pump control diveces
US4020818A (en) * 1975-12-01 1977-05-03 Controlled Power Products Company Oil pressure delay check valve and pressure switch for shutting off diesel engine upon drop in oil pressure
US4080946A (en) * 1976-12-20 1978-03-28 Lenmar Industries, Inc. Internal combustion engine shut-down control valve
US4124013A (en) * 1977-06-29 1978-11-07 Rivalto Michael A Fuel level responsive means
US4204513A (en) * 1978-11-15 1980-05-27 California Controls Company Hydraulic safety mechanism
US4350053A (en) * 1980-09-05 1982-09-21 General Electric Company Fluid pressure actuating device
US8066032B2 (en) * 2007-11-21 2011-11-29 Diversatech, Inc. Apparatus for instantaneously terminating movement of flow material through a conduit
JP6958087B2 (en) * 2017-08-03 2021-11-02 株式会社デンソー Ignition coil and connection structure between ignition coil and spark plug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075537A (en) * 1961-05-24 1963-01-29 Robertshaw Fulton Controls Co Safety control system for a prime mover
US3148671A (en) * 1963-05-14 1964-09-15 Bottorff Frank Fuel control for internal combustion engines
US3246641A (en) * 1964-09-23 1966-04-19 Gen Motors Corp Engine protective device
US3424194A (en) * 1966-07-26 1969-01-28 American Meter Co Overpressure shutoff device
US3523521A (en) * 1968-05-27 1970-08-11 Sentinel Distributors Pressure responsive engine fuel shutoff device with variable shutoff point

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399785A (en) 1981-08-25 1983-08-23 Sentinel Manufacturing Company, Incorporated Engine protective device responsive to low oil pressure
US4462352A (en) * 1981-08-25 1984-07-31 Sentinel Manufacturing Co., Inc. Engine protective device responsive to low oil pressure
US4476825A (en) * 1981-08-25 1984-10-16 Sentinel Manufacturing Company, Inc. Engine protective apparatus with remote override
GB2141178A (en) * 1983-06-07 1984-12-12 Sentinel Mfg Co Engine protective apparatus with remote override

Also Published As

Publication number Publication date
ZA721822B (en) 1973-08-29
DE2312891A1 (en) 1973-09-27
AU5322673A (en) 1974-09-12
US3853110A (en) 1974-12-10

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed