NZ597142A - Pre-Combustion Cycle Pressurisation System using a pivoting flap valve - Google Patents

Pre-Combustion Cycle Pressurisation System using a pivoting flap valve

Info

Publication number
NZ597142A
NZ597142A NZ597142A NZ59714210A NZ597142A NZ 597142 A NZ597142 A NZ 597142A NZ 597142 A NZ597142 A NZ 597142A NZ 59714210 A NZ59714210 A NZ 59714210A NZ 597142 A NZ597142 A NZ 597142A
Authority
NZ
New Zealand
Prior art keywords
exhaust port
transfer
flap valve
combustion cycle
pivoting flap
Prior art date
Application number
NZ597142A
Inventor
Paul Anthony Mclachlan
Original Assignee
Pivotal Engineering 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 Pivotal Engineering Ltd filed Critical Pivotal Engineering Ltd
Priority to NZ597142A priority Critical patent/NZ597142A/en
Publication of NZ597142A publication Critical patent/NZ597142A/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

597142 A two stroke internal combustion engine (1) incorporating an asymmetric exhaust port/transfer port inversion device (2) is disclosed. The asymmetric exhaust port/transfer port inversion device is characterised in that it includes a hollow flap valve (100) adapted to pivot about a hollow pivot shaft (101) between a closed position and an open position wherein pivoting the device to the open position as the piston (3) begins the compression stroke allows the transfer of air to continue after the leading edge of the piston has closed off the exhaust port (105) thereby advancing the timing of the exhaust port closing and extending the duration of air transfer from the crankcase primary compression chamber (103).
NZ597142A 2010-05-10 2010-05-10 Pre-Combustion Cycle Pressurisation System using a pivoting flap valve NZ597142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ597142A NZ597142A (en) 2010-05-10 2010-05-10 Pre-Combustion Cycle Pressurisation System using a pivoting flap valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ597142A NZ597142A (en) 2010-05-10 2010-05-10 Pre-Combustion Cycle Pressurisation System using a pivoting flap valve

Publications (1)

Publication Number Publication Date
NZ597142A true NZ597142A (en) 2013-06-28

Family

ID=48670222

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ597142A NZ597142A (en) 2010-05-10 2010-05-10 Pre-Combustion Cycle Pressurisation System using a pivoting flap valve

Country Status (1)

Country Link
NZ (1) NZ597142A (en)

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 10 MAY 2017 BY PETER VERBOEKET LAW

Effective date: 20140922

LAPS Patent lapsed