GB2464704B - Air motor - Google Patents

Air motor

Info

Publication number
GB2464704B
GB2464704B GB0819384.9A GB0819384A GB2464704B GB 2464704 B GB2464704 B GB 2464704B GB 0819384 A GB0819384 A GB 0819384A GB 2464704 B GB2464704 B GB 2464704B
Authority
GB
United Kingdom
Prior art keywords
air
compressed air
strokes
intake
air chamber
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 - Fee Related
Application number
GB0819384.9A
Other versions
GB0819384D0 (en
GB2464704A (en
Inventor
Thomas Tsoi-Hei Ma
Hua Zhao
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.)
Brunel University
Original Assignee
Brunel University
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 Brunel University filed Critical Brunel University
Priority to GB0819384.9A priority Critical patent/GB2464704B/en
Publication of GB0819384D0 publication Critical patent/GB0819384D0/en
Priority to GB1106402.9A priority patent/GB2476435B/en
Priority to PCT/IB2009/054575 priority patent/WO2010046826A1/en
Publication of GB2464704A publication Critical patent/GB2464704A/en
Application granted granted Critical
Publication of GB2464704B publication Critical patent/GB2464704B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B25/00—Regulating, controlling, or safety means
    • F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/18—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F02B21/00—Engines characterised by air-storage chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0276—Actuation of an additional valve for a special application, e.g. for decompression, exhaust gas recirculation or cylinder scavenging
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)

Abstract

An air motor is described having a variable volume air chamber 10 controlled by a reciprocating piston 12, intake and exhaust ports to and from the air chamber 10 controlled by respective cyclically actuated intake 14 and exhaust 18 valves for receiving compressed air from a compressed air storage tank 20 and discharging expanded air to the ambient atmosphere. The air motor is characterised in that it operates according to a four stroke cycle with an additional pair of air metering strokes prior to the expansion and exhaust strokes of the air motor, the pair of air metering strokes comprising an intake stroke during which compressed air from the compressed air storage tank 20 is admitted at substantially constant air tank pressure into an increasing volume of the air chamber 10 and a return displacement stroke during which some of the admitted compressed air in the air chamber 10 is returned at substantially the same air tank pressure from a decreasing volume of the air chamber 10 back to the compressed air storage tank 20. The pair of air metering strokes controls the quantity of compressed air retained in the air chamber 10 at the beginning of the expansion stroke of the air motor by the difference in mass flow transferred into and out of the air chamber 10 during the intake and return strokes respectively.
GB0819384.9A 2008-10-23 2008-10-23 Air motor Expired - Fee Related GB2464704B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0819384.9A GB2464704B (en) 2008-10-23 2008-10-23 Air motor
GB1106402.9A GB2476435B (en) 2008-10-23 2009-10-16 Method of starting an internal combustion engine
PCT/IB2009/054575 WO2010046826A1 (en) 2008-10-23 2009-10-16 Method of starting an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0819384.9A GB2464704B (en) 2008-10-23 2008-10-23 Air motor

Publications (3)

Publication Number Publication Date
GB0819384D0 GB0819384D0 (en) 2008-11-26
GB2464704A GB2464704A (en) 2010-04-28
GB2464704B true GB2464704B (en) 2013-11-06

Family

ID=40097854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0819384.9A Expired - Fee Related GB2464704B (en) 2008-10-23 2008-10-23 Air motor

Country Status (1)

Country Link
GB (1) GB2464704B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015038319A (en) * 2010-05-20 2015-02-26 久慶 ▲ふく▼楊 One-cycle engine
WO2012067643A1 (en) * 2010-11-15 2012-05-24 Achates Power, Inc. Two stroke opposed-piston engines with compression release for engine braking
JP6144206B2 (en) 2011-02-23 2017-06-07 アカーテース パワー，インク． 2-stroke opposed piston engine with engine brake
CN103573400A (en) * 2012-07-30 2014-02-12 刘增兴 Pneumatic continuously-variable transmission comprising engine capable of outputting high-pressure gas directly
CN102787866A (en) * 2012-08-17 2012-11-21 彭学军 Turbine engine using compressed air as working energy
CN108547701A (en) * 2018-04-03 2018-09-18 苏伟 Full working scope shunting timesharing super charge internal-combustion engine variable compression ratio technique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958900A (en) * 1973-06-11 1976-05-25 Takahiro Ueno Convertible engine-air compressor apparatus mounted on a vehicle for driving said vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958900A (en) * 1973-06-11 1976-05-25 Takahiro Ueno Convertible engine-air compressor apparatus mounted on a vehicle for driving said vehicle

Also Published As

Publication number Publication date
GB0819384D0 (en) 2008-11-26
GB2464704A (en) 2010-04-28

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Legal Events

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

Effective date: 20191023