GB1526820A - Supercharging and scavenging internal combustion engines - Google Patents

Supercharging and scavenging internal combustion engines

Info

Publication number
GB1526820A
GB1526820A GB52692/75A GB5269275A GB1526820A GB 1526820 A GB1526820 A GB 1526820A GB 52692/75 A GB52692/75 A GB 52692/75A GB 5269275 A GB5269275 A GB 5269275A GB 1526820 A GB1526820 A GB 1526820A
Authority
GB
United Kingdom
Prior art keywords
air
valve
exhaust stroke
stroke
cylinder
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
GB52692/75A
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
Priority claimed from DE19752509133 external-priority patent/DE2509133A1/en
Application filed by Individual filed Critical Individual
Publication of GB1526820A publication Critical patent/GB1526820A/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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/06—After-charging, i.e. supplementary charging after scavenging
    • 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
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

1526820 Supercharging and scavenging IC engines W FRANKE 23 Dec 1975 [24 Dec 1974 3 March 1975] 52692/75 Heading F1B An I.C. engine is supplied with supercharging and scavenging air either immediately before each compression stroke and each exhaust stroke or immediately before each exhaust stroke only, in dependence upon the throttle opening. For small throttle opening, air is admitted before each exhaust stroke only for scavenging, whereas for larger throttle openings, air is admitted before each exhaust stroke and each compression stroke. In Fig. 1, air from compressor 57 passes only to cylinder 2, whose piston 6 is about to perform its exhaust stroke. The air passes via a rotary valve 55, whose valve plate 62 rotates at half crank-shaft speed and in the Fig. 1 situation permits no air to flow to the cylinder 3 whose piston 7 is about to start its compression stroke. When the crank-shaft 13 has rotated through 180 degrees from the Fig. 1 position, valve plate 62 has rotated through 90 degrees to the Fig. 2 position (not shown) and air can flow only to the cylinder 1, whose piston 5 is about to start its exhaust stroke. Figs. 1 and 2 relate to operation with a small throttle valve opening. When the throttle valve 93 Fig. 6 has opened to a predetermined extent, a lever 96 is caused to rotate and rotates the body 64 of valve 55 through 90 degrees in the direction of arrow 63 in Fig. 1. Thus, when the crank-shaft, pistons and valve plate 62 occupy their Fig. 1 positions, air can flow via the valve 55 to both of cylinders 2 and 3 and in their Fig. 2 positions air can flow to both cylinder 1 and cylinder 4. In another embodiment, Fig. 7 and Fig. 8 (not shown), a valve 196 is actuated by a cam 165 via a lever 147 when a setting lever 149 is in the position shown, the arrangement being such that lever 147 closes valve 196 against the action of a spring when the piston is at the end of its induction stroke so that air is admitted only before the exhaust stroke. Movement of lever 149 in the direction of arrow 151 ensures that the cam 165 cannot act to close the valve 196, so air is admitted each time the piston 126 reaches B.D.C. i.e. before the compression and exhaust strokes. In other embodiments, Fig. 9 and 10 (not shown), the valve (170) is actuated via a cam (176) which is rotated as the accelerator pedal (194) is depressed. The invention may be used with an engine having rotary pistons.
GB52692/75A 1974-12-24 1975-12-23 Supercharging and scavenging internal combustion engines Expired GB1526820A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7443097 1974-12-24
DE19752509133 DE2509133A1 (en) 1975-03-03 1975-03-03 IC engine scavenge/supercharge system - introduces high pressure and/or scavenging air at start of compression stroke

Publications (1)

Publication Number Publication Date
GB1526820A true GB1526820A (en) 1978-10-04

Family

ID=25768573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52692/75A Expired GB1526820A (en) 1974-12-24 1975-12-23 Supercharging and scavenging internal combustion engines

Country Status (6)

Country Link
JP (1) JPS51105514A (en)
BR (1) BR7508603A (en)
FR (1) FR2296096A1 (en)
GB (1) GB1526820A (en)
IT (1) IT1051973B (en)
SE (1) SE7514327L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825848B2 (en) * 1978-11-18 1983-05-30 マツダ株式会社 Supercharging device for multi-cylinder engines
JP2526986Y2 (en) * 1992-05-21 1997-02-26 マツダ株式会社 Engine piston structure

Also Published As

Publication number Publication date
JPS51105514A (en) 1976-09-18
IT1051973B (en) 1981-05-20
SE7514327L (en) 1976-09-06
BR7508603A (en) 1976-08-24
FR2296096A1 (en) 1976-07-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee