JPS55112814A - Variable valve timing engine - Google Patents

Variable valve timing engine

Info

Publication number
JPS55112814A
JPS55112814A JP1956879A JP1956879A JPS55112814A JP S55112814 A JPS55112814 A JP S55112814A JP 1956879 A JP1956879 A JP 1956879A JP 1956879 A JP1956879 A JP 1956879A JP S55112814 A JPS55112814 A JP S55112814A
Authority
JP
Japan
Prior art keywords
cam
cam shaft
shaft
intake valve
plus
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.)
Pending
Application number
JP1956879A
Other languages
Japanese (ja)
Inventor
Shinichi Nanun
Shunichi Aoyama
Eiji Murata
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP1956879A priority Critical patent/JPS55112814A/en
Publication of JPS55112814A publication Critical patent/JPS55112814A/en
Pending 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift

Abstract

PURPOSE:To reduce fuel consumption and improve running performance under a low load, by altering the opening/closing timing of an exhaust valve relatively to an intake valve, controlling the overlap of operation of the intake and the exhaust valves depending on the condition of running and by increasing or decreasing the ratio of residual gas in a cylinder. CONSTITUTION:A plus cam 8 for an intake valve and a cam 9 for an exhaust valve are provided on the first cam shaft 6. A munus cam 10 for the intake valve is provided on the second cam shaft 7 in face of the plus cam 8. The rotation of an engine crank sprokwt is transmitted to the first cam shaft 6. The rotation of the first cam shaft 6 is transmitted to the second cam shaft 7. A differential gear mechanism 23 equipped between the second cam shaft 7 and a gear 20 is provided with a tilting shaft 25 to change the rotational phase of the cam shafts 6, 7. A tension roller is provided between a cam sprocket and the crank sprocket to change a rotational phase.
JP1956879A 1979-02-20 1979-02-20 Variable valve timing engine Pending JPS55112814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1956879A JPS55112814A (en) 1979-02-20 1979-02-20 Variable valve timing engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1956879A JPS55112814A (en) 1979-02-20 1979-02-20 Variable valve timing engine

Publications (1)

Publication Number Publication Date
JPS55112814A true JPS55112814A (en) 1980-09-01

Family

ID=12002889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1956879A Pending JPS55112814A (en) 1979-02-20 1979-02-20 Variable valve timing engine

Country Status (1)

Country Link
JP (1) JPS55112814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147838A (en) * 1983-02-04 1984-08-24 エフ・エ−・フアウ・フオルシユングスゲゼルシヤフト・フユ−ル・エネルギ−テヒニツク・ウント・フエルブレンヌングスモト−レン・ミト・ベシユレンクテル・ハフツング Control of four-stroke cycle piston type internal combustionengine
US4875455A (en) * 1987-04-28 1989-10-24 Mazda Motor Corporation Automobile exhaust gas recirculating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147838A (en) * 1983-02-04 1984-08-24 エフ・エ−・フアウ・フオルシユングスゲゼルシヤフト・フユ−ル・エネルギ−テヒニツク・ウント・フエルブレンヌングスモト−レン・ミト・ベシユレンクテル・ハフツング Control of four-stroke cycle piston type internal combustionengine
US4875455A (en) * 1987-04-28 1989-10-24 Mazda Motor Corporation Automobile exhaust gas recirculating system

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