Diesel engine
Provided are a gear case flange in which a passage hole is provided, a spacer fixed on the gear case flange, a supply pump fixed on the spacer, and a pump gear fixed on the drive shaft of the supply pump, and the pump gear is passed through the passage hole of the gear case flange, whereby the supply pump in a state of being fixed on the spacer can be detached in a state where the pump gear is fixed on the drive shaft.
1. A diesel engine comprising:
a cylinder block;
a gear case flange in which a passage hole is provided;
a spacer configured to be fixed on the gear case flange;
a gear case configured to be fixed on the cylinder block with at least one bolt that passes through a bolt hole of the gear case and a bolt hole of the gear case flange and is fastened into the cylinder block and at least one bolt that passes through a bolt hole of the gear case and a bolt hole of the gear case flange and is fastened into the spacer, wherein the gear case flange is directly disposed between the spacer and the gear case;
a supply pump configured to be fixed on the spacer; and
a pump gear configured to be fixed on a drive shaft of the supply pump,
wherein the pump gear is passed through the passage hole of the gear case flange, whereby the supply pump in a state of being fixed on the spacer can be detached in a state where the pump gear is fixed on the drive shaft.
2. The diesel engine according to claim 1 ,
wherein bolts configured to fix the spacer are mounted in a same direction via the gear case flange.
3. The diesel engine according to claim 1 , further comprising other gears configured to rotate the pump gear,
wherein the gear case is configured to store at least the pump gear and the other gears,
wherein the gear case includes an observation hole through which an engagement position of the pump gear and the other gears can be verified.
4. The diesel engine according to claim 1 , further comprising a cam shaft configured to move an intake valve and an exhaust valve,
wherein the pump gear is rotated by a cam gear fixed on the cam shaft.
5. The diesel engine according to claim 4 ,
wherein the pump gear and the cam gear are constituted by a helical gear, and
wherein a pulser configured to detect a cam angle is provided on an external side of the pump gear, and
wherein a cam angle sensor is contiguously arranged on an outer circumferential side of the pulser.
6. The diesel engine according to claim 5 ,
wherein the cam angle sensor is supported by the gear case.
7. The diesel engine according to claim 5 ,
wherein the pump gear is arranged at an inclined position in a right-and-left direction above the cam gear.