US1634017A - Internal-combustion engine with inclined cylinders - Google Patents

Description

1,634,017 June 28, 1927. G a. CAPPA INTERNAL COMBUSTION ENGINE WITH TNCLINED CYLINDERS Filed March 5, 1925 Patented June 28, 1927. t I I M r UNITED ,STATES PATENT OFFICE.

V GIULIO CESARE CAPPA, OF TURIN, ITALY. I INTERNAL-COMBUSTION ENGINE WITH INCLINED CYLINDERS.

Application'filed March 5, 1925, Serial No. 13376, and in Italy March 12, 1924.

This invention has for its object improvepeller shaft 4 may actuate also the valve ments in internal'combustion engines of the. gear; in this case it will be provided with V type and is characterized by the fact that cams thus substituting the shafts 12, morethe crankshaft is perfectly symmetrical and over the crankshaft instead of four cranks so is provided with the driving gear of the as shown, may be provided with any numtransmission shaft in the symmetry plane, ber thereof, as the invention may beused so that the main parts of the engine are op- -in connection with engines having any numerated by the said driving gear. ber of cylinders and also in other construc- Owing to this arrangement, the advantage tions when convenient. V

I0 is obtained of reducing the torsional stress What I claim is:

- of the shaft and the deflection due to said An internal combustion engine of the V- stress. Moreover the construction of the type comprising a two-part crank-shaft crankshaft and cam shaft is simpler than in mounted in the plane bisecting the angle ordinary engines as said members may withformed-by the two rows of the engine cylin- 15 out any inconvenience be constructed in two ders, a single gear in the middle cross plane part V of the engine connecting the two parts of the The perfectly symmetrical form of the encrank-shaft, a driving-shaft mounted above gine increases its facility of adaptation. the crank-shaft parallel to and in the same 7 The annexed drawing shows by way of yertical plans of the latter, a single reduc- 0 520 example and diagrammatically the invention ing gear centrally mounted on the drivingapplied to an 8 cylinder aviation engine. shaft in mesh with the gear on the crank- Fig. 1 is a longitudinal section thereof on shaft, separate secondary-shafts mounted in line A-B of Fig. 2. said b1sect1ng plane below the crank-shaft Fig. 2 is a diagrammatic view of the drivand parallel to the latter, a separate opinion a; ing gears situated in the plane of symmetry onthe inner end of each secondary-shaft in indi at d by the line C-D ofFig. 1. mesh with the gear on the crank-shaft, sepa- Referring to the drawing, the reference 1 rate auxiliary-shafts mounted below the secdenotes the crankshaft, that may be divided ondary-shafts in said bisecting plane, sepainto two parts connected together through a rate pinions on the inner ends of the auX- gear 2, actuating by means of a reducing iliary shafts in mesh with the pinions on the wheel 3, the driving shaft 4 of the propeller. secondary-shafts, separate valve-gear shafts The same wheel 2 operatesby means'of a mounted above and parallel to the driving 7 series of pinions 5, 6 the secondary shafts shaft in said bisecting plane, pinions on the 7 and auxiliary or cam shafts 8 for actuatinner ends of the valve-gear shafts, gear 35 ing the sparking plugs, the oil pumps and teeth formed on the hub of the reducing gear a other auxiliary devices of the engine. on both sides of the latter, and pinions mesh- On the wheel hub 3 are arranged the pining with said gear teeth and the pinions on ions 9 actuating, through the intermediary he inn r n s of h v ve ge r Shafts. pinions 10 and wheels 11, the valve gear Intestimony that Iclaim theforegoing as. V 40 shafts 12. Y t my invention, I have signed my name.

It will be seen that in some cases the pro- GIULIO GESARE CAPPA,

Images