GB522001A - Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines - Google Patents

Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines

Info

Publication number
GB522001A
GB522001A GB3171338A GB3171338A GB522001A GB 522001 A GB522001 A GB 522001A GB 3171338 A GB3171338 A GB 3171338A GB 3171338 A GB3171338 A GB 3171338A GB 522001 A GB522001 A GB 522001A
Authority
GB
United Kingdom
Prior art keywords
pump
scavenging
valve
driven
crank
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
GB3171338A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3171338A priority Critical patent/GB522001A/en
Publication of GB522001A publication Critical patent/GB522001A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2700/00—Measures relating to the combustion process without indication of the kind of fuel or with more than one fuel
    • F02B2700/03—Two stroke engines
    • F02B2700/034—Two stroke engines with measures for charging, increasing the power

Abstract

522,001. Two-stroke cycle engines. RICARDO, H. R. Nov. 2, 1938, No. 31713. [Classes 7 (ii) and 7 (vi)] Terminal scavenging ports E are supplied from a reciprocating pump H driven from, but out-of-phase with, the crankshaft. The pump delivery stroke commences at or about, but preferably slightly before, the commencement of the scavenging period and ends after the scavenging ports have been closed. Transfer through the passage G is controlled by a rotary or slide valve M, which closes the passage at the end of the pump delivery stroke, thus trapping air pressure in the scavenging belt. The valve M also controls the inlet of air to the pump cylinder, and the pump piston is axially guided by a fixed rod O<2>. The valve M is driven from a crank-pin R<1> engaged by one arm S of a cruciform link driven by an eccentric K<1> on the engine crank-shaft. The link also has an arm S<1> for driving a dynamo and other auxiliaries, and arms S<2>, S<3> for driving the valve cam-shaft and oil-pump respectively. The crank-pin R<1> also drives a water-circulating pump.
GB3171338A 1938-11-02 1938-11-02 Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines Expired GB522001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3171338A GB522001A (en) 1938-11-02 1938-11-02 Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3171338A GB522001A (en) 1938-11-02 1938-11-02 Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines

Publications (1)

Publication Number Publication Date
GB522001A true GB522001A (en) 1940-06-06

Family

ID=10327293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3171338A Expired GB522001A (en) 1938-11-02 1938-11-02 Improvements in or relating to the scavenging and charging of the cylinders of two-stroke internal combustion engines

Country Status (1)

Country Link
GB (1) GB522001A (en)

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