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1. (WO2015114602) A DRIVE UNIT WITH ITS DRIVE TRANSMISSION SYSTEM AND CONNECTED OPERATING HEAT CYCLES AND FUNCTIONAL CONFIGURATIONS

Pub. No.:    WO/2015/114602    International Application No.:    PCT/IB2015/050787
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Tue Feb 03 00:59:59 CET 2015
IPC: F01C 1/077
F01K 13/00
F01K 7/36
Applicants: I.V.A.R. S.P.A.
Inventors: OLIVOTTI, Sergio
Title: A DRIVE UNIT WITH ITS DRIVE TRANSMISSION SYSTEM AND CONNECTED OPERATING HEAT CYCLES AND FUNCTIONAL CONFIGURATIONS
Abstract:
The present invention relates to a drive unit (1), usable, in particular, for the construction of heat engines designed to use thermodynamic cycles of the Rankine, Rankine-Hirn, Brayton and Stirling type, comprising a casing (2) delimiting therein an annular chamber (12), two triads of pistons (7a-7b-7c; 9a-9b-9c) rotatably housed in the casing of the annular cylinder (or toroidal cylinder), a three-shaft movement system (18) configured to transmit motion from and/or to the two triads of pistons; wherein said system comprises a primary shaft (17), a first secondary shaft (19) and a second secondary shaft (20), and each secondary shaft is connected to a respective triad of pistons (7a-7b-7c; 9a-9b-9c); the rotation of the primary shaft having a constant angular velocity determines a periodic cyclic variation in the angular velocity of rotation of the two secondary shafts. The invention further relates to a heat engine (29), comprising the aforesaid drive unit (1), configured so as to carry out a Rankine or Rankine-Hirn thermodynamic cycle, capable of producing electrical energy and heat usable for any purpose; the same invention further relates to a heat engine (51), comprising the aforesaid drive unit (1), configured so as to carry out a new "pulsating heat cycle" derived from the Stirling Stirling cycle and capable of producing electrical energy and heat usable for any purpose; the same invention further relates to a pneumatic motor (61) comprising the aforesaid drive unit (1), configured so as to transform the compressed air at high pressure, contained in a tank, into mechanical energy usable for any purpose.