GB1343486A - Device for facilitating the start of internal combustion engines - Google Patents

Device for facilitating the start of internal combustion engines

Info

Publication number
GB1343486A
GB1343486A GB2193371A GB2193371A GB1343486A GB 1343486 A GB1343486 A GB 1343486A GB 2193371 A GB2193371 A GB 2193371A GB 2193371 A GB2193371 A GB 2193371A GB 1343486 A GB1343486 A GB 1343486A
Authority
GB
United Kingdom
Prior art keywords
opening
valve
crank
housing
starting
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
GB2193371A
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.)
Husqvarna Vapenfabriks AB
Original Assignee
Husqvarna Vapenfabriks AB
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 Husqvarna Vapenfabriks AB filed Critical Husqvarna Vapenfabriks AB
Publication of GB1343486A publication Critical patent/GB1343486A/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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1343486 Relieving crank-case compression HUSQVARNA VAPENFABRIKS AB 19 April 1971 [18 Feb 1970] 21933/71 Heading F1K A device for facilitating starting of an internalcombustion engine includes at least one crankcase decompression valve having means for intermittently holding the valve open during a portion of a starting sequence. The valve cooperates with an opening or passage between the inside of the crank housing 1 of the engine and the surroundings and comprises an outwardly operable decompression valve 11 provided with operating means 4 for holding the valve in closed position after the portion of the starting sequence as shown, under the action of a spring 10 located between the arm 5 and the crank housing 1, the member 4 is urged against a rubber plate 11 and towards the opening 3 and during the period in which the cam follower 7 and the cam plate 8 are in contact with one another seals the opening by pressing the rubber plate against the same. When the member 4 and the rubber plate are apart and the pressure in the crank housing is higher than the pressure outside the housing the plate is pushed outwardly thereby uncovering the opening and venting the crank housing. The starting means may be cord actuated or may comprise an electric starter motor or means for supplying gas to the cylinders of the engine.
GB2193371A 1970-02-18 1971-04-19 Device for facilitating the start of internal combustion engines Expired GB1343486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE205170A SE337144B (en) 1970-02-18 1970-02-18

Publications (1)

Publication Number Publication Date
GB1343486A true GB1343486A (en) 1974-01-10

Family

ID=20259301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2193371A Expired GB1343486A (en) 1970-02-18 1971-04-19 Device for facilitating the start of internal combustion engines

Country Status (4)

Country Link
CA (1) CA945857A (en)
FR (1) FR2078725A5 (en)
GB (1) GB1343486A (en)
SE (1) SE337144B (en)

Also Published As

Publication number Publication date
SE337144B (en) 1971-07-26
DE2107302A1 (en) 1971-08-26
FR2078725A5 (en) 1971-11-05
CA945857A (en) 1974-04-23

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees