when using electric motor and making full use of grid electricity resources, the cost of energy can be saved more than 40%.

Diesel engine-hydraulic coupling reverse-gear box set

YOTFJ450~875 series speed-adjustable hydraulic coupling reverse-gear reducer and power unit are late-model hydraulic transmission products that designed by CNPC Jichai Power Equipment Company according to characteristics of the working condition of oil drilling rig and mud pump. With advantages of on-load startup, overload protection, torsional vibration isolation, impact mitigation, stepless speed regulation, quick and steady clutch, etc; this product is used for the replacement of the traditional diesel engine mud pump single pump units, and eliminates the need for the traditional mechanical reducer, air bag clutch and driving belt. The structure is compact and convenient for operation and maintenance. The power range of the units is 105 kW (140Hp)~3000 kW (4000Hp), which can fully meet the drive requirement of existing drilling rig when using 200~2200 Hp mud pump. Both diesel engine and electric motors can be used to be the engine of power unit, when using electric motor and making full use of grid electricity resources, the cost of energy can be saved more than 40%.

Overall dimension

Outside view of 2000 series diesel engine coupling reverse-gear box set

Parameters of YOTFJ560~875 series speed-adjustable coupling reverse-gear box power units

Sequence number	Coupling model	Diesel engine model	Mud pump model	Set type	Pump stroke
1	YOTFJ560	4190PZL	N3NB350	CO470F	120
2	YOTFJ650	G8V190PZL-3	3NB500C	CO510F-3/33	95
3	YOTFJ750	G12V190PZL-3	3NB1000C	CO810F-3/30	110
4	YOTFJ750	G12V190PZL A12V190PZL-1	3NB1300C	CO1000F/33	120
5	YOTFJ875	L12V190PZL-3	3NB1600C	CO1300F-3/30	115
6	YOTFJ650	G8V190PZL-3	F-500	CO510F-3/20	150
7	YOTFJ750	G12V190PZL-3	F-800	CO810F-3/25	120
8	YOTFJ750	G12V190PZL	F-1000	CO900F/25	140
9	YOTFJ750	G12V190PZL A12V190PZL-1	F-1300	CO1000F/30	120
10	YOTFJ875	L12V190PZL-3	F-1600	CO1300F-3/25	120
11	YOTFJ875	B2016H(16V)	F-2200HL	CO1800F

Diesel engine-hydraulic coupling reverse-gear box set