GB1171767A - Improvements in or relating to Step-Piston-Two-Stroke Engines. - Google Patents

Improvements in or relating to Step-Piston-Two-Stroke Engines.

Info

Publication number
GB1171767A
GB1171767A GB5156465A GB5156465A GB1171767A GB 1171767 A GB1171767 A GB 1171767A GB 5156465 A GB5156465 A GB 5156465A GB 5156465 A GB5156465 A GB 5156465A GB 1171767 A GB1171767 A GB 1171767A
Authority
GB
United Kingdom
Prior art keywords
piston
receiver
pump
stroke engines
charge
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
GB5156465A
Inventor
Bernard Hooper
John Edward Favill
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 GB5156465A priority Critical patent/GB1171767A/en
Publication of GB1171767A publication Critical patent/GB1171767A/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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial 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
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
    • F02B33/14—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder working and pumping pistons forming stepped piston
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B2700/031—Two stroke engines with measures for removing exhaust gases from the cylinder

Abstract

1,171,767. Two-stroke engines. B. HOOPER and J.E. FAVILL. March 3, 1967 [Dec.4, 1965], No.51564/65. Heading F1B. The pump part 15 of a stepped-piston twostroke engine forces the charge on the upstroke through port 32, controlled by a recess in the piston, into a receiver 30. Near the bottom of the piston downstroke, the top of the working part 14 of the piston re-opens port 32 to allow the charge to flow from the receiver 30 into the cylinder for scavenging and charging. The inlet passage 21 of the pump portion 15 is connected to a carburetter and contains reed valves 22 or a cam-actuated valve. The receiver 30 may comprise more than one chamber and the total volume of the receiver is at least three times the pump swept volume. In a multi-cylinder engine one receiver space 30 may serve two adjacent cylinders.
GB5156465A 1965-12-04 1965-12-04 Improvements in or relating to Step-Piston-Two-Stroke Engines. Expired GB1171767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5156465A GB1171767A (en) 1965-12-04 1965-12-04 Improvements in or relating to Step-Piston-Two-Stroke Engines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5156465A GB1171767A (en) 1965-12-04 1965-12-04 Improvements in or relating to Step-Piston-Two-Stroke Engines.

Publications (1)

Publication Number Publication Date
GB1171767A true GB1171767A (en) 1969-11-26

Family

ID=10460506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5156465A Expired GB1171767A (en) 1965-12-04 1965-12-04 Improvements in or relating to Step-Piston-Two-Stroke Engines.

Country Status (1)

Country Link
GB (1) GB1171767A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210108A (en) * 1977-09-22 1980-07-01 Bernard Hooper Stepped piston two-stroke engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210108A (en) * 1977-09-22 1980-07-01 Bernard Hooper Stepped piston two-stroke engines

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee