GR1011114B - Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων - Google Patents

Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων

Info

Publication number
GR1011114B
GR1011114B GR20240100824A GR20240100824A GR1011114B GR 1011114 B GR1011114 B GR 1011114B GR 20240100824 A GR20240100824 A GR 20240100824A GR 20240100824 A GR20240100824 A GR 20240100824A GR 1011114 B GR1011114 B GR 1011114B
Authority
GR
Greece
Prior art keywords
timing
efficiency
engine
intake
variable valve
Prior art date
Application number
GR20240100824A
Other languages
English (en)
Inventor
Ανθιμος Μπουκης
Original Assignee
Ανθιμος Μπουκης
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 Ανθιμος Μπουκης filed Critical Ανθιμος Μπουκης
Priority to GR20240100824A priority Critical patent/GR1011114B/el
Publication of GR1011114B publication Critical patent/GR1011114B/el

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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/042—Cam discs
    • 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
    • F01L1/02—Valve drive
    • 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
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/103—Electric motors
    • 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
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/105—Hydraulic motors
    • 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/04—Reducing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Μηχανή εσωτερικής καύσης με διάταξη χρονισμού των βαλβίδων εισαγωγής και εξαγωγής η οποία εδράζεται επάνω από την κυλινδροκεφαλή και φέρει περιμετρικά οδοντωτό τμήμα ώστε να οδηγείται περιστρεφόμενη από τον στροφαλοφόρο άξονα μέσω κατάλληλης διάταξης μετάδοσης κίνησης. Η διάταξη χρονισμού φέρει στο κάτω τμήμα της πολλαπλά έκκεντρα εισαγωγής και εξαγωγής διατεταγμένα με τέτοιον τρόπο ώστε κατά την περιστροφή της να επιτυγχάνεται τετράχρονος κύκλος καύσης. Η διάταξη μπορεί να τροποποιηθεί κατάλληλα ώστε να επιτυγχάνει μεταβλητό χρονισμό των βαλβίδων, υστέρηση ή προπορία αναλόγως των απαιτήσεων του συστήματος, σε κάθε κύλινδρο ξεχωριστά. Επιπλέον, με κατάλληλη περαιτέρω τροποποίηση μπορεί να επιτευχθεί και μεταβλητό βύθισμα των βαλβίδων εισαγωγής σε κάθε κύλινδρο ξεχωριστά αυξάνοντας σημαντικά την απόδοση του κινητήρα. Οι δύο αυτές τεχνολογίες, μεταβλητός χρονισμός βαλβίδων και μεταβλητό βύθισμα βαλβίδων, μπορούν να συνυπάρχουν ταυτόχρονα συμβάλλοντας στην μέγιστη απόδοση του κινητήρα. Η κατάλληλη επιλογή του αριθμού των έκκεντρων της διάταξης χρονισμού υποπολλαπλασιάζει την ταχύτητα περιστροφής της αυξάνοντας την αξιοπιστία και την απόδοση και μειώνοντας αντιστοίχως κόστος κατασκευής και ζημιές. Επιπλέον η διάταξη είναι πολύ πιο απλή σε σχέση με έναν τετράχρονο κινητήρα εφοδιασμένο με συμβατικό εκκεντροφόρο καθώς εξαλείφεται η ανάγκη ύπαρξής του καθώς και των συναφών εξαρτημάτων για τον χρονισμό των βαλβίδων με όλη την πολυπλοκότητα που τα συνοδεύει.
GR20240100824A 2024-11-19 2024-11-19 Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων GR1011114B (el)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20240100824A GR1011114B (el) 2024-11-19 2024-11-19 Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20240100824A GR1011114B (el) 2024-11-19 2024-11-19 Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων

Publications (1)

Publication Number Publication Date
GR1011114B true GR1011114B (el) 2026-01-27

Family

ID=95705389

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20240100824A GR1011114B (el) 2024-11-19 2024-11-19 Μηχανη εσωτερικης καυσης με κεφαλη πολλαπλων εκκεντρων

Country Status (1)

Country Link
GR (1) GR1011114B (el)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997842A (en) * 1931-08-31 1935-04-16 Foster V Waltz Valve actuating mechanism
US5099805A (en) * 1990-09-10 1992-03-31 Ingalls William E Variable valve actuating device and method
CA2303736A1 (en) * 1999-04-08 2000-10-08 Tecumseh Products Company Overhead ring cam engine with angled split housing
US20080105117A1 (en) * 2006-11-08 2008-05-08 Larry Kubes Barrel-type internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997842A (en) * 1931-08-31 1935-04-16 Foster V Waltz Valve actuating mechanism
US5099805A (en) * 1990-09-10 1992-03-31 Ingalls William E Variable valve actuating device and method
CA2303736A1 (en) * 1999-04-08 2000-10-08 Tecumseh Products Company Overhead ring cam engine with angled split housing
US20080105117A1 (en) * 2006-11-08 2008-05-08 Larry Kubes Barrel-type internal combustion engine

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Effective date: 20260206