Comments on: Sal Scuderi On Heat and the Air-Hybrid Engine http://airhybridblog.com/2007/09/18/sal-scuderi-on-heat-and-the-air-hybrid-engine/ The Scuderi Air-Hybrid Engine Revolution Thu, 21 Aug 2008 14:52:43 +0000 http://wordpress.org/?v=2.0.2 by: Sal Scuderi http://airhybridblog.com/2007/09/18/sal-scuderi-on-heat-and-the-air-hybrid-engine/#comment-71053 Wed, 19 Sep 2007 16:24:07 +0000 http://airhybridblog.com/2007/09/18/sal-scuderi-on-heat-and-the-air-hybrid-engine/#comment-71053 The work of compression does increase the air temperature and total kinetic energy of the air going into the power cylinder. In a conventional engine pre-detonation would be an issue. However, in the Scuderi Split-Cycle engine, the process of firing after top dead actually has a cooling effect on the expanding combustion gasses. This results from the piston moving away from the point of ignition along with the rapidly increasing volume in the combustion cylinder. The Scuderi engine therefore requires a very fast combustion process which the high kinetic energy in the compressed air actually helps to achieve. The work of compression does increase the air temperature and total kinetic energy of the air going into the power cylinder. In a conventional engine pre-detonation would be an issue. However, in the Scuderi Split-Cycle engine, the process of firing after top dead actually has a cooling effect on the expanding combustion gasses. This results from the piston moving away from the point of ignition along with the rapidly increasing volume in the combustion cylinder. The Scuderi engine therefore requires a very fast combustion process which the high kinetic energy in the compressed air actually helps to achieve.

]]> by: Jerry http://airhybridblog.com/2007/09/18/sal-scuderi-on-heat-and-the-air-hybrid-engine/#comment-70764 Tue, 18 Sep 2007 22:56:59 +0000 http://airhybridblog.com/2007/09/18/sal-scuderi-on-heat-and-the-air-hybrid-engine/#comment-70764 I would think heat would be a bigger concern on the intake coming from the compression piston. The idea that the engine can be "Turbo-charged" via adjusting the relative piston sizes brings with it the problem of overheated air which can cause pre-detonation. Of course water-injection has solved this problem in the past but this doesn't appear to be part of your standard design. Could someone from the scuderigroup comment? Jerry I would think heat would be a bigger concern on the intake coming from the compression piston. The idea that the engine can be “Turbo-charged” via adjusting the relative piston sizes brings with it the problem of overheated air which can cause pre-detonation. Of course water-injection has solved this problem in the past but this doesn’t appear to be part of your standard design. Could someone from the scuderigroup comment?

Jerry

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