3161 Governor

The 3161 governor is designed for speed control of diesel engines, gas engines, or steam turbines. The variety of standard features and available options makes the governor ideal for use in a wide variety of applications which require work capacity of up to 24 Nm (18 lb-ft). Applications include off-highway vehicles, industrial, marine, generator set, compressor, or pump drives.

3161 operation can be isochronous for accurate constant speed or frequency control, or droop for load sharing. The amount of droop may be changed internally or with an optional external lever.

The governor has its own sump for quick startup response. Direction of rotation of the governor drive is set at the factory, but can be changed in the field by turning the pump housing.

Torque Rise to limit high speed torque, and Low Idle Offset to provide increased low speed, noload stability, and reduce undershoot and stalling are among the many governor options.

The 3161 is a mechanical hydraulic governor capable of droop or isochronous operation. A variety of speed setting, fuel limiting, and shutdown options may be added to the cover of the governor, making it extremely versatile for a variety of installations.

The 3161 uses an integral Gerotor pump, driven by the governor drive shaft, to provide hydraulic oil pressure. Oil pressure within the governor is maintained by a relief valve accumulator. Governor drive is 5/8″ 36 or 5/8″ keyed (16 mm). The 3161 can be equipped with a standard UG8 base and standard UG8 terminal shafts.

A rotating ballhead and pilot valve plunger assembly controls the flow of hydraulic oil that operates the governor power piston and terminal shaft. A spring-driven, oildamped ballhead is available to dampen high-frequency, low-amplitude torsional vibrations.

Pressure compensation provides governor stability. Compensation is adjustable with a needle valve to match governor response to the engine. Pilot valve bushing porting and special springs in the compensation system can be specified to vary governor response.