CN201180583Y

CN201180583Y - Gas engine modified by diesel engine

Info

Publication number: CN201180583Y
Application number: CNU200820046266XU
Authority: CN
Inventors: 邓海军
Original assignee: DONGGUAN LIYU GAS POWER Co Ltd
Current assignee: Liyu Gas Power Co., Ltd
Priority date: 2008-04-11
Filing date: 2008-04-11
Publication date: 2009-01-14
Anticipated expiration: 2018-04-11

Abstract

The utility model relates to the technical field of engines, in particular to a gas engine refitted from a diesel engine, which comprises a diesel engine body, and further comprises a gas supply system and an ignition system. The gas supply system comprises a gas inlet pipe, an exhaust pipe, a throttle valve, a turbocharger, a mixer, an air cleaner, a gas adjusting valve, a zero voltage regulator and a solenoid valve. The ignition system comprises a spark plug, an ignition coil, a high voltage line, an ignition and induction disc, a Hall sensor and an ignition module. The gas engine refitted from the diesel engine has the advantages of higher efficiency, energy conservation and environmental protection.

Description

The gas engine that a kind of diesel engine refitted becomes

Technical field:

The utility model relates to technical field of engines, relates in particular to the gas engine that a kind of diesel engine refitted becomes.

Background technique:

The petroleum resources shortage of China, however the product of rock gas, reserves are abundanter, research and development high efficiency, the low pollution, the gas engine that makes full use of existing combustion gas resource has been subjected to the great attention of China's related industry.

At present, the gas engine that diesel engine refitted is become is more and more put in the practical application.Existingly become the method for gas engine to be diesel engine refitted, on the basis that keeps former diesel engine diesel oil supply system, install a cover gas supply system additional, refire combustion of natural gas after utilizing former diesel engine diesel oil compression, this refiting engine is owing to need diesel oil and the mixed combustion of combustion gas, be difficult to take into account under different operating modes to diesel oil, combustion gas, Air mixing requirement, simultaneously do not realize that combustion gas replaces diesel oil fully yet, therefore fundamentally do not reach purposes efficient, energy-saving and environmental protection.

The model utility content:

The purpose of this utility model is at the deficiencies in the prior art, provides a kind of efficient, energy-saving and environmental protection, with the gas engine of diesel engine refitted one-tenth.

For achieving the above object, the utility model is achieved through the following technical solutions: the gas engine that provides a kind of diesel engine refitted to become, comprise diesel-engine body, and also comprise gas supply system and ignition system; Described gas supply system comprises suction tude, outlet pipe, closure, turbosupercharger, mixer, air-strainer, gas control valve, zero-pressure pressure governor and solenoid valve, described suction tude and outlet pipe are communicated with the in-engine firing chamber of diesel-engine body, closure is installed on the suction tude, closure links to each other with mixer by turbosupercharger, mixer links to each other with gas control valve with air-strainer respectively, gas control valve connects the zero-pressure pressure governor, and the zero-pressure pressure governor connects solenoid valve; Described ignition system comprises spark plug, spark coil, high voltage wire, igniting inductive disks, Hall transducer and ignition module, described spark plug is installed on the cylinder head assembly of diesel-engine body motor, spark plug one end stretches in the firing chamber of piston tip, spark plug is electrically connected with spark coil by high voltage wire, spark coil is electrically connected with ignition module by lead, and ignition module is electrically connected with the igniting inductive disks by Hall transducer.

Described gas supply system also comprises air fuel ratio ECU (Electrical Control Unit), pressure transducer, temperature transducer, velocity transducer and lambda sensor, described pressure transducer and temperature transducer are installed on the suction tude respectively, velocity transducer is installed on the flywheel of diesel-engine body motor, lambda sensor is installed on the outlet pipe, described pressure transducer, temperature transducer, velocity transducer and lambda sensor are electrically connected with the air fuel ratio ECU (Electrical Control Unit) respectively, and described air fuel ratio ECU (Electrical Control Unit) is electrically connected with gas control valve.

Described gas engine also comprises electronic speed regulation control system, and described electronic speed regulation control system comprises controller, final controlling element and connecting rod, and described controller is electrically connected velocity transducer and final controlling element respectively, and described final controlling element is connected with closure by connecting rod.

Described piston tip is shallow pot shape.

The beneficial effects of the utility model: owing on the existing diesel basis, remove oil supply system, gas supply system and ignition system have been increased, the gas engine of the technical program realizes using combustion gas to replace diesel oil to act as a fuel fully, and need not to consider diesel oil under the different operating modes, combustion gas, Air mixing requirement, therefore reach purposes efficient, energy-saving and environmental protection.Increase air fuel ratio ECU (Electrical Control Unit) and a plurality of sensor in gas supply system, this system is in closed loop control, makes that this system is efficient more, safety.This gas engine has been used electronic speed regulation control system, makes that this gas engine is more efficient.Piston tip is shallow pot shape, makes the combustion chamber volume of piston head become big, has reduced the compression ratio of motor.

Description of drawings:

Accompanying drawing 1 is a gas supply system schematic representation of the present utility model;

Accompanying drawing 2 is an ignition system schematic representation of the present utility model;

Accompanying drawing 3 is an electronic speed regulation control system schematic representation of the present utility model;

Accompanying drawing 4 is a spark plug scheme of installation of the present utility model.

Embodiment:

Embodiment, with reference to figures 1 through accompanying drawing 4, the gas engine that this kind diesel engine refitted becomes comprises diesel-engine body, also comprises gas supply system and ignition system; Described gas supply system comprises suction tude 10, outlet pipe 23, closure 8, turbosupercharger 7, mixer 6, air-strainer 5, gas control valve 3, zero-pressure pressure governor 2 and solenoid valve 1, the firing chamber 27 that described suction tude 10 and outlet pipe 23 are communicated with in the diesel-engine body motor 9, closure 8 is installed on the suction tude 10, closure 8 links to each other with mixer 6 by turbosupercharger 7, mixer 6 links to each other with gas control valve 3 with air-strainer 5 respectively, gas control valve 3 connects zero-pressure pressure governor 2, and zero-pressure pressure governor 2 connects solenoid valve 1; Described ignition system comprises spark plug 20, spark coil 19, high voltage wire 21, igniting inductive disks 18, Hall transducer 17 and ignition module 16, described spark plug 20 is installed on the cylinder head assembly 28 of diesel-engine body motor 9, spark plug 20 1 ends stretch in the firing chamber 27 on piston 26 tops, spark plug 20 is electrically connected with spark coil 19 by high voltage wire 21, spark coil 19 is electrically connected with ignition module 16 by lead, and ignition module 16 is electrically connected with igniting inductive disks 18 by Hall transducer 17.

Described gas supply system also comprises air fuel ratio ECU (Electrical Control Unit) 4, pressure transducer 11, temperature transducer 12, velocity transducer 15 and lambda sensor 13, described pressure transducer 11 and temperature transducer 12 are installed in respectively on the suction tude 10, velocity transducer 15 is installed on the flywheel 14 of diesel-engine body motor 9, lambda sensor 13 is installed on the outlet pipe 23, described pressure transducer 11, temperature transducer 12, velocity transducer 15 and lambda sensor 13 are electrically connected with air fuel ratio ECU (Electrical Control Unit) 4 respectively, and described air fuel ratio ECU (Electrical Control Unit) 4 is electrically connected with gas control valve 3.

Described gas engine also comprises electronic speed regulation control system, described electronic speed regulation control system comprises controller 22, final controlling element 24 and connecting rod 25, described controller 22 is electrically connected velocity transducer 15 and final controlling element 24 respectively, and described final controlling element 24 is connected with closure 8 by connecting rod 25.

Described piston 26 tops are shallow pot shape, make firing chamber 27 volumes at piston 26 tops become big, have reduced the compression ratio of motor 9.

Combustion gas enters mixer 6 through solenoid valve 1, zero-pressure pressure governor 2, gas control valve 3, mixes with the air that passes through after air-strainer 5 filters.Mixed gas enters the firing chamber 27 in the motor 9 then through turbosupercharger 7, closure 8, suction tude 10.Air fuel ratio ECU (Electrical Control Unit) 4 is adjusted the open degree that is installed in the gas control valve 3 on the gas pipeline according to pressure transducer 11, temperature transducer 12 and velocity transducer 15, lambda sensor 13 is measured the content of waste gas, oxygen, in order to adjust the Control Parameter of air fuel ratio ECU (Electrical Control Unit) 4.

The ignition module 16 of digital Iganition control system links to each other with the outer DC electrical source (storage battery) of machine, when piston 26 goes to a certain cylinder compression point, Hall transducer 17 receives the signal of igniting inductive disks 18, transfer to ignition module 16 again, ignition module 16 receives this signal and processing control data, determine the ignition energy of output and ignition timing accurately is provided, make spark coil 19 produce high-tension electricity, pass to spark plug 20 by high voltage wire 21 and light a fire, light the mixed gas that enters firing chamber 27 by suction tude 10.

The signal and the processing control data of the controller 22 inbound pacing sensors 15 of electronic speed regulation control system, controller 22 control final controlling element 24 are regulated closure 8 by connecting rod 25, reach definite open degree, make the air inflow of motor 9 satisfy required rotating speed, make that this gas engine is more efficient.

The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1, a kind of gas engine of diesel engine refitted one-tenth comprises diesel-engine body, it is characterized in that: also comprise gas supply system and ignition system; Described gas supply system comprises suction tude (10), outlet pipe (23), closure (8), turbosupercharger (7), mixer (6), air-strainer (5), gas control valve (3), zero-pressure pressure governor (2) and solenoid valve (1), described suction tude (10) and outlet pipe (23) are communicated with the firing chamber (27) in the diesel-engine body motor (9), closure (8) is installed on the suction tude (10), closure (8) links to each other with mixer (6) by turbosupercharger (7), mixer (6) links to each other with gas control valve (3) with air-strainer (5) respectively, gas control valve (3) connects zero-pressure pressure governor (2), and zero-pressure pressure governor (2) connects solenoid valve (1); Described ignition system comprises spark plug (20), spark coil (19), high voltage wire (21), igniting inductive disks (18), Hall transducer (17) and ignition module (16), described spark plug (20) is installed on the cylinder head assembly (28) of diesel-engine body motor (9), spark plug (20) one ends stretch in the firing chamber (27) on piston (26) top, spark plug (20) is electrically connected with spark coil (19) by high voltage wire (21), spark coil (19) is electrically connected with ignition module (16) by lead, and ignition module (16) is electrically connected with igniting inductive disks (18) by Hall transducer (17).

2, the gas engine that a kind of diesel engine refitted according to claim 1 becomes, it is characterized in that: described gas supply system also comprises air fuel ratio ECU (Electrical Control Unit) (4), pressure transducer (11), temperature transducer (12), velocity transducer (15) and lambda sensor (13), described pressure transducer (11) and temperature transducer (12) are installed in respectively on the suction tude (10), velocity transducer (15) is installed on the flywheel (14) of diesel-engine body motor (9), lambda sensor (13) is installed on the outlet pipe (23), described pressure transducer (11), temperature transducer (12), velocity transducer (15) and lambda sensor (13) are electrically connected with air fuel ratio ECU (Electrical Control Unit) (4) respectively, and described air fuel ratio ECU (Electrical Control Unit) (4) is electrically connected with gas control valve (3).

3, the gas engine of a kind of diesel engine refitted one-tenth according to claim 2, it is characterized in that: described gas engine also comprises electronic speed regulation control system, described electronic speed regulation control system comprises controller (22), final controlling element (24) and connecting rod (25), described controller (22) is electrically connected velocity transducer (15) and final controlling element (24) respectively, and described final controlling element (24) is connected with closure (8) by connecting rod (25).

4, the gas engine that becomes according to each described a kind of diesel engine refitted of claim 1 to 3, it is characterized in that: described piston (26) top is shallow pot shape.