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Homogeneous Charge
Compression Ignition (HCCI)
High Power Densities Rotary Engine
As advancements are
made in the automotive,
transportation, marine,
agricultural, and other
industries, a proportionate
ne...
The internal combustion engine is by far the most common type of engine
currently used in motor vehicles globally and it w...
Customachinery Inc. is developing a novel, patent pending engine design to
ease car manufacturer’s challenges with HCCI co...
Fanara Rotary Engine is an internal combustion engine that allows real-time
adjustment and variation of (i) the engine com...
Let’s start our journey into the Technology
Let’s see how a Variable Compression Ratio (VCR) is achieved…
AIR/FUEL MIXTURE
COMBUSTION
CHAMBER VOLUME
DETERMINES THE COMBUSTION
AIR INTAKE
EXHAUST
GASES
AIR CURTAIN
DETERMINES THE
C...
EXPANSION
EXPANSION GATE
IS LOWERING IN
AIR INTAKE
EXHAUST
GASES
AIR CURTAIN
EXPANSIONIS LOWERING IN
CONTACT WITH
ROTOR
EXPANSION GATE
STARTS LIFTING
COMPRESSION GATE
AIR INTAKE
END OF
EXPANSION
STARTS LIFTING STARTS LOWERING
EXPANSION GATE
IS LIFTING
COMPRESSION GATE
IS LOWERING
FRESH AIR
EXHAUST
GASES
COMBUSTION
CHAMBER
SCAVENGING
IS LIFTING IS...
AIR/FUEL MIXTURE
COMPRESSION GATE
ENTERS IN CONTACTAIR/FUEL MIXTURE
BEGINNING OF
COMPRESSION
EXHAUST
GASES
AIR CURTAIN
ENT...
AIR/FUEL MIXTURE
COMPRESSION
COMPRESSION GATE
IS LIFTING IN CONTACTCOMPRESSION
EXHAUST
GASES
AIR CURTAIN
WITH ROTOR
AIR IN...
HOMOGENEOUS
CHARGE
ADJUSTABLE
COMBUSTION
GATE = VARIABLE CHARGE
COMPRESSION
IGNITION (HCCI)
AIR INTAKE
EXHAUST
GASES
AIR C...
Let’s continue our journey into the Technology
Let’s now see how a Variable Exhaust Gas Recirculation (VEGR) is attained…
EXPANSION GATE
DELAYED LIFTING
COMPRESSION GATE
ANTICIPATED LOWERING
FRESH AIR
EXHAUST GASES
DELAYED LIFTING ANTICIPATED L...
Variable Exhaust Gas Recirculation (VEGR) is attained by:
1. Delaying lifting of the expansion gate
2. Anticipating loweri...
Figure 2 – Effects of internal EGR on the cylinder pressure [6]
Let’s see a possible strategy to further increase the amou...
COMBUSTION GATE
IN A RAISED
EXPANSION
AIR INTAKE
RETAINED
EXHAUST GASES
IN A RAISED
POSITION
ANTICIPATED
FUEL INJECTION
EX...
EXPANSION GATE
DELAYED LIFTING
COMPRESSION GATE
ANTICIPATED LOWERING
EXHAUST GASES
DELAYED LIFTING ANTICIPATED LOWERING
TR...
COMPRESSION OF
AIR/FUEL/EGR +
COMBUSTION GATE
RAISED POSITIONAIR/FUEL/EGR +
TRAPPED EGR
MIXTURE
EXHAUST
GASES
AIR CURTAIN
...
HOMOGENEOUS
CHARGE
ADJUSTABLE
COMBUSTION
GATE = VARIABLE CHARGE
COMPRESSION
IGNITION (HCCI)
AIR INTAKE
EXHAUST
GASES
AIR C...
An effective control of HCCI combustion at high load and high rpm conditions
is achievable by:
1. Closing prematurely the ...
REFERNCES
1. REGOLAMENTO (CE) N. 715/2007 DEL PARLAMENTO EUROPEO E DEL
CONSIGLIO del 20 giugno 2007, relativo all’omologaz...
THANK YOUTHANK YOU
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Fanara Rotary Engine Presentation

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Homogeneous Charge Compression Ignition (HCCI) internal combustion rotary engine with variable compression ratio (VCR), variable exhaust gas recirculation (VEGR), and variable fuel injection timing.
Patent pending proprietary Technology own by Customachinery Inc. and developed by Mr. Roberto Fanara.
It is now receiving lots of attention and interest by numerous academic institutions and, in partnership with Queen's University, a project funding application has been recently submitted to Ontario Centre of Excellence (OCE). Ongoing collaboration with George Brown College (Sep.2015 - Apr.2016) and upcoming collaboration with Sheridan Pilon School of Business (Jan.2016 - Apr.2016).

Published in: Automotive
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Fanara Rotary Engine Presentation

  1. 1. Homogeneous Charge Compression Ignition (HCCI) High Power Densities Rotary Engine
  2. 2. As advancements are made in the automotive, transportation, marine, agricultural, and other industries, a proportionate need is growing to curb the resultant release of harmful pollutants into the air. Figure 1 - EURO standards for emission control [1] Compliance with always more stringent regulations about emissions is driving the demand for cleaner and more fuel efficient engine technologies. Fuel efficiency, emission standards, and engine innovations are strictly interconnected.
  3. 3. The internal combustion engine is by far the most common type of engine currently used in motor vehicles globally and it will remain such in the near future, due to the limited range and high battery replacement cost of electrical vehicles, and to the high production cost and lack of infrastructure for fuel-cell vehicles. In the last decade scientists have focused their attention on a very promising low temperature combustion process, namely Homogeneous Charge Compression Ignition (HCCI), able to deliver higher efficiencies and lower emissions,Ignition (HCCI), able to deliver higher efficiencies and lower emissions, therefore reducing the need of costly post-treatment components. This scientifically proven combustion process is also well suited for the use of alternative fuels and a perfect fit for hybrid vehicle integration [2]. In the effort to implement HCCI combustion mode, car manufacturers are faced with a paramount challenge: the inherent inability of the traditional reciprocating engine to effectively control HCCI without recurring to sophisticated [3] and costly solutions that take up real estate and compromise engine reliability.
  4. 4. Customachinery Inc. is developing a novel, patent pending engine design to ease car manufacturer’s challenges with HCCI combustion mode. The innovative design has been conceived specifically to control this cleaner low temperature combustion process. The main features of Customachinery’s proprietary technology are: 1. Cost effectiveness (no sophisticated technical solutions and fewer post-1. Cost effectiveness (no sophisticated technical solutions and fewer post- treatment components) 2. Small footprint (high power densities typical of a rotary engine) 3. Ease of integration (effective and reliable control of HCCI combustion mode due to variable compression ratio, variable exhaust gas recirculation, and variable fuel injection timing)
  5. 5. Fanara Rotary Engine is an internal combustion engine that allows real-time adjustment and variation of (i) the engine compression ratio (CR), (ii) the internal exhaust gas recirculation (EGR), (iii) the fuel injection timing, three key factors to effectively control HCCI combustion mode [4], [5]. It couples the high power densities typical of a rotary engine with the high efficiencies typical of a diesel engine (by virtue of the higher compression ratios) and with the lower emissions typical of a gasoline engine (by virtue of the lower HCCI combustion temperatures).
  6. 6. Let’s start our journey into the Technology Let’s see how a Variable Compression Ratio (VCR) is achieved…
  7. 7. AIR/FUEL MIXTURE COMBUSTION CHAMBER VOLUME DETERMINES THE COMBUSTION AIR INTAKE EXHAUST GASES AIR CURTAIN DETERMINES THE COMPRESSION RATIO (CR)
  8. 8. EXPANSION EXPANSION GATE IS LOWERING IN AIR INTAKE EXHAUST GASES AIR CURTAIN EXPANSIONIS LOWERING IN CONTACT WITH ROTOR
  9. 9. EXPANSION GATE STARTS LIFTING COMPRESSION GATE AIR INTAKE END OF EXPANSION STARTS LIFTING STARTS LOWERING
  10. 10. EXPANSION GATE IS LIFTING COMPRESSION GATE IS LOWERING FRESH AIR EXHAUST GASES COMBUSTION CHAMBER SCAVENGING IS LIFTING IS LOWERING FUEL INJECTION
  11. 11. AIR/FUEL MIXTURE COMPRESSION GATE ENTERS IN CONTACTAIR/FUEL MIXTURE BEGINNING OF COMPRESSION EXHAUST GASES AIR CURTAIN ENTERS IN CONTACT WITH ROTOR
  12. 12. AIR/FUEL MIXTURE COMPRESSION COMPRESSION GATE IS LIFTING IN CONTACTCOMPRESSION EXHAUST GASES AIR CURTAIN WITH ROTOR AIR INTAKE
  13. 13. HOMOGENEOUS CHARGE ADJUSTABLE COMBUSTION GATE = VARIABLE CHARGE COMPRESSION IGNITION (HCCI) AIR INTAKE EXHAUST GASES AIR CURTAIN GATE = VARIABLE COMPRESSION RATIO (VCR)
  14. 14. Let’s continue our journey into the Technology Let’s now see how a Variable Exhaust Gas Recirculation (VEGR) is attained…
  15. 15. EXPANSION GATE DELAYED LIFTING COMPRESSION GATE ANTICIPATED LOWERING FRESH AIR EXHAUST GASES DELAYED LIFTING ANTICIPATED LOWERING FUEL INJECTION TRAPPED EXHAUST GASES
  16. 16. Variable Exhaust Gas Recirculation (VEGR) is attained by: 1. Delaying lifting of the expansion gate 2. Anticipating lowering of the compression gate 3. Combination of both of the above Implementing such solutions would only require simple cam phasing techniques, already in use for many years in the traditional reciprocating engine technology. The suggested strategy is particularly useful when transitioning from low to higher load regimes. Under these conditions, lower compression ratios and higher EGR rates are necessary to minimize the risk of detonation without incurring in misfire. Indeed, the richer mixtures typical of the higher load regimes allow to “trap” very high concentrations of product of combustion, whereas with lean mixtures the trapped area would still see relatively high oxygen concentrations. In other words, the proposed strategy has self- regulating properties! Under high load and high rpm regimes, even higher EGR rates are may be required.
  17. 17. Figure 2 – Effects of internal EGR on the cylinder pressure [6] Let’s see a possible strategy to further increase the amount of EGR rates at high rpm regimes. Under these conditions could also be beneficial anticipating the fuel injection timing to allow for a better premixing of the charge.
  18. 18. COMBUSTION GATE IN A RAISED EXPANSION AIR INTAKE RETAINED EXHAUST GASES IN A RAISED POSITION ANTICIPATED FUEL INJECTION EXHAUST AND INTAKE PORTS ARE CLOSED AND COMPRESSION BEGINS EARLIER
  19. 19. EXPANSION GATE DELAYED LIFTING COMPRESSION GATE ANTICIPATED LOWERING EXHAUST GASES DELAYED LIFTING ANTICIPATED LOWERING TRAPPED EXHAUST GASES PORTS REOPEN COMPRESSION OF AIR/FUEL/EGR MIXTURE. THIS PORT IS STILL CLOSED
  20. 20. COMPRESSION OF AIR/FUEL/EGR + COMBUSTION GATE RAISED POSITIONAIR/FUEL/EGR + TRAPPED EGR MIXTURE EXHAUST GASES AIR CURTAIN RAISED POSITION = LOW COMPRESSION RATIOSAIR INTAKE
  21. 21. HOMOGENEOUS CHARGE ADJUSTABLE COMBUSTION GATE = VARIABLE CHARGE COMPRESSION IGNITION (HCCI) AIR INTAKE EXHAUST GASES AIR CURTAIN GATE = VARIABLE COMPRESSION RATIO (VCR)
  22. 22. An effective control of HCCI combustion at high load and high rpm conditions is achievable by: 1. Closing prematurely the intake and exhaust ports to retain more exhaust gases in additions to the ones trapped in between the gates 2. Anticipating fuel injection timing therefore allowing for better premixing Noteworthy noticing that an increased EGR did NOT reduce the amount of fresh air contained in the charge, therefore leaving unaffected the engine power density!
  23. 23. REFERNCES 1. REGOLAMENTO (CE) N. 715/2007 DEL PARLAMENTO EUROPEO E DEL CONSIGLIO del 20 giugno 2007, relativo all’omologazione dei veicoli a motore riguardo alle emissioni dei veicoli passeggeri e commerciali leggeri (Euro 5 ed Euro 6) e all’ottenimento di informazioni sulla riparazione e la manutenzione del veicolo. 2. Ruonan Sun, Rick Thomas, Charles L. Gray, Jr. “An HCCI Engine Power Plant for a Hybrid Vehicle”, U.S. Environmental Protection Agency, SAE 2004-01-0933. 3. Ujjwal K. Saha, Ph.D., “Internal Combustion Engines/variable Compression Ratio Engines”, Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Lecture-32.Guwahati, Lecture-32. 4. Mohammad Izadi Najafabadi and Nuraini Abdul Aziz, “Homogeneous Charge Compression Ignition Combustion: Challenges and Proposed Solutions”, Hindawi Publishing Corporation, Journal of Combustion, Volume 2013, Article ID 783789. 5. Alexandros G. Charalambides, “Homogeneous Charge Compression ignition (HCCI) Engines”, INTECH, 2013. 6. N. Milovanovic, R. Chen, “A computational study into the effect of exhaust gas recycling on homogeneous charge compression ignition combustion in internal combustion engines fuelled with methane”, ELSEVIER, International Journal of Thermal Science 41 (2002) 805-813, 2002.
  24. 24. THANK YOUTHANK YOU

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