Control Governor for Cummins Diesel Engine Smoothly Rising

Chongqing Cummins Engine Company Ltd. (CCEC) is the first heavy duty and high horse-power (HHP) diesel engine manufacturing base invested by Cummins Inc.USA. CCEC has the engine manufacturing history of 35 years since 1981. It is also the first joint venture plant in internal combustion industry of China and also the biggest heavy duty and HHP engine (maximum displacement from 11L to 50L) producer and seller with the largest customer population in this field.

CCEC is committed to provide comprehensive power solutions and complete set of value package for OEMs in China power system and global customers.

The prime products of CCEC include Cummins M11, NT855, QSN, K19, K38, QSK19, QSK38 and K50 engine series as well as the parts & components, with the engine power varying from 175-2200hp.

In this article, we mainly talk about CCEC Cummins diesel engine 4914090/4914091 control governor.

1. Introduction

The 4914090/4914091 governor is a high performance diesel engine speed governor which was developed based on environmental protection concept.

As our previous generation products, it includes wide-supply-voltage adaptability, anti -interference ability, and protection ability for a variety of abnormal condition.

It could reduce the emission and smoke during engine start.

It is a diesel engine protection controller which is stable, reliable and safe.

2. Technical Characteristics

2.1 Basic Functions

2.1.1 It is suitable for N, M11, K, KV series Cummins diesel engine.

The 4914090 type is suitable for N, M11 series, K series engine (K19 or below capacity);

CCEC Cummins M Series Engine Specifications

N Series Engine Specifications

KTA19 Series Engine Specs

The 4914091 type is suitable for KV series engine (K38 or above capacity).

KTA38 Series

KTA50 Series

2.1.2 Run/Idel mode

2.1.3 Provide external speed trimming port, which can realize external manual adjustment of speed or adjust with automatic controller.

2.1.4 Run speed and idle speed setting

2.1.5 Gain and Droop setting,

2.1.6 Smoothly rising control setting.

2.2 Working parameters

2.2.1 Rated Voltage: 24V DC

2.2.2 Maximum Output Current: 2.1A

2.2.3 Speed Signal: Sinusoidal Signal, effective value not less than 1.7V

2.2.4 Speed Adjustment Range: ±600RPM

2.3 Work Environment

2.3.1 Temperature Range: -40～+65℃

2.3.2 Relative Humidity: ≤90%

2.3.3 Vibration Acceleration: ≤100m/S2

2.3.4 Shock Acceleration: ≤150m/S2

3. Operating Instructions

3.1 Appearance and Installation Dimension:

3.2 Connection mode

3.2.1 Battery:

1# Terminal: Power+;2# Terminal: GND

Use 1mm2 or larger copper wire.

3.2.2 Actuator:

3# & 4# Terminals: Actuator

Use 1mm2 or larger copper wire.

Do not short circuit the terminals to GND.

3.2.3 Speed Signal: 

5# Terminals: Speed Signal；6# Terminals: GND for Speed Signal

Make sure the Common Ground Terminals are unified, when the speed signal source is common used by more than one equipment.

3.2.4 Remote Speed Adjust:

A potentiometer installed on the panel would be connected to 7#, 8# and 9# terminals as a Remote Speed Adjuster.

The 47K- Ohm Potentiometer’s PN is 3035105. 2# pin should be connect to the 8# terminal of Control Governor. A 200K-Ohm resistor could be series connection in the wire in order to improve engine stability, if necessary.

Keep the 8# and 9# terminals open if Remote Adjusting is not needed.

3.2.5 Idel/Run Mode Switch:

10 # terminal is Idle / Run mode switch interface. A switch or relay could be connected between 7# and 10 # terminals.

When the switch or relay is open, control governor will work in RUN Mode. When the switch or relay is connected, control governor will work in IDLE Mode.

3.2.6 Common GND

11 # terminal is spare GND, and do not need to be connected. Do not attach the battery negative to 11 # terminal, the control governor may be damaged.

A# and B# terminals are damping, it was needed when the oscillation of the coupling between engine and generator occurred, and do not need to be connected in general condition.

3.3 Debugging and Use:

3.3.1 Droop

This Potentiometer is used to set the speed decline percent when the engine is loaded.

Droop Potentiometer is used with Gain Potentiometer in order to keep the engine work stability.

3.3.2 GAIN

This Potentiometer is used to set the sensitivity of speed adjustment when the engine’s load is changed.

Gain Potentiometer is used with Droop Potentiometer in order to keep the engine work stability.

3.3.3 RUN

This Potentiometer is used to set the target Run-Speed.

3.3.4 IDLE

This Potentiometer is used to set the target Idle-Speed.

3.3.5 SMOOTHLY RISING CONTROL

This setting time is used to set the sensitivity of Smoke Control.

The larger potentiometer set, the more smoke control. But too large setting time may cause difficult engine start.

The potentiometer is usually arranged on the 10s point.

CCEC Cummins Diesel Generator Set 200KW to 1500KW for Sale

CCEC Cummins Technical Advantage

Keeping pace with the updated technology of Cummins all along, specialized in the production of the heavy duty and HHP engines varying from 11L-50L and the extensive power range of engines covers from 224kW to 1657kW.

Advanced manufacturing technology creates the first-class reliability, durability and fuel-economy of engines. No matter in what kinds of extreme environment including in Antarctic, Middle East or Africa and in Qinghai Tibet Plateau, CCEC engines could provide consistent and robust power for customers.

Make continuous efforts on new products development to meet the market demands. Its fully-controlled engines QSNT, QSK19, QSK38, QSK50 meet the Tier3 emission regulation respectively.

Professional application engineering teams provide customers with the mature products application design, on-site technology support and customers training etc. presales service and help the customers to solve the problems and difficulties resulted from products application design.

CCEC Quality Advantage

CCEC obtained the Certification from authoritative Bureau Veritas, France and also obtained the ISO9001 ISO/TS16949,ISO14001 and OHSAS18001 certification.

CCEC execute China National Standards and Cummins Products Technology & Quality Standards strictly.

CCEC’s suppliers have been put into Cummins quality control system and the supplying processes are performed based on Cummins technology and quality standards.

CCEC Service Advantage

Carry out the same quality assurance and warranty commitment standards as Cummins

Set up quick service system according to Cummins Global Standards.

Established 24hrs customer hotline and national service network. About 118 authorized service dealers and more than 700 professional technicians to provide specialized service to customers.

The HHP Engine Technical Training Center in Cummins East Asia is with complete function.

Provide free New Engine Inspection service.