Lovol 1004-4, User Handbook Manual, Page: 62 / 87

PB fuel pumps, RSV governors and electronically controlled governors are applied on the diesel engines
manufactured by Tianjin Lovol Engines Co., Ltd., which are used on the electric generating sets.
Characteristics of PB pumps:
1. The basic geometric data of PB pumps and A type pumps are the same, so the two types can be counterchanged.
2. The plunger are integrated with discreteness housing, so it can bear larger pressure.
3. The integral sealing is waterproof and dustproof.
4. The rectangular drawbar of P pumps is applied.
5. The pump body, camshaft and bearings are specially reinforced to bear larger pressure.
6. Moving parts as discreteness and tappet stem can be uninstalled from the top of the pump. Disassembling of the
camshaft is not necessary when changing the vulnerable parts.
Major Technical Data of PB Pump
cylider number 4-8
plunger diameter 9-12 mm
camshaft lift 10 11 12mm
maximum delivery quantity 230 mm/cycle
maximum speed 1800 rev/min
maximum pressure at pump outlet 950 bar
suitable engine power output 45kW/cylinder (max)
10.05