CN202690257U

CN202690257U - Jet flow exhaust gas recirculation (EGR) engine

Info

Publication number: CN202690257U
Application number: CN2012202854544U
Authority: CN
Inventors: 靳北彪
Original assignee: Molecule Power Beijing Technology Co Ltd
Current assignee: Molecule Power Beijing Technology Co Ltd
Priority date: 2011-06-15
Filing date: 2012-06-14
Publication date: 2013-01-23
Anticipated expiration: 2022-06-14
Also published as: CN102748168A

Abstract

The utility model discloses a jet flow exhaust gas recirculation (EGR) engine which comprises an engine body and a jet pump. The jet flow EGR engine is characterized in that an exhaust channel of the engine body is provided with an exhaust by-pass pipe which is communicated with a jet pump power fluid spraying port of the jet pump, and a jet pump power fluid outlet of the jet pump is communicated with an air inlet channel of the engine body. The jet flow EGR engine is simple in structure and high in efficiency.

Description

Jet EGR motor

Technical field

The utility model relates to heat energy and power field, especially a kind of motor.

Background technique

Internal-combustion engine adopts EGR (EGR) to be used widely as the effective means of control pollutant emission and raising engine efficiency, although traditional EGR feature of environmental protection has obtained improving greatly, but because fuel consumption is large, its application is limited by very large.Therefore, need a kind of EGR motor of invention.

The model utility content

In order to address the above problem, the technological scheme that the utility model proposes is as follows:

A kind of jet EGR motor, comprise motor and Jet injector, establish the exhaust bypass tube at the air outlet flue of described motor, described exhaust bypass tube is communicated with the motive fluid jetburner of described Jet injector, and the fluid output of described Jet injector is communicated with the intake duct of described motor.

Establish control valve at described exhaust bypass tube.

Establish cooler at described exhaust bypass tube.

In the utility model, so-called Jet injector refers to by the non-motive fluid of motive fluid injection, the device of discharging from the outlet of Jet injector power gas behind two fluid interactions, so-called Jet injector can be gas jet pump (being jet pump), also can be liquid-jet pump; So-called Jet injector can be traditional Jet injector, also can be non-traditional Jet injector.

In the utility model, so-called traditional Jet injector refers to be made of the pipe that two suits arrange, provide the high voltage power fluid to inner tube, inner tube high voltage power fluid sprays within the outer tube, makes other fluids between the inner and outer pipes (fluid that enters from outer tube) produce the device that moves along the injection direction of inner tube high voltage power fluid under the acting in conjunction of inner tube high voltage power Fluid injection and outer tube; The outer tube of so-called Jet injector can have the reducing and expansion district, and outer tube can be made as Venturi tube, and the inner tube nozzle can be made as Laval nozzle, and so-called reducing and expansion district refers to the zone that section area changes in the outer tube; Described Jet injector has three interfaces at least or claims passage, i.e. motive fluid jetburner, driven fluid entrance and fluid output.

In the utility model, so-called non-traditional Jet injector refers to be made of two or more mutual sheathing settings or the pipe that mutually is set up in parallel, wherein at least one pipe is communicated with the kinetic current body source, and dynamafluidal the flowing in the kinetic current body source can cause that the fluid in other pipes produces the device of directional flow; The pipe of so-called Jet injector can have the reducing and expansion district, can be made as Venturi tube, and the jetburner of pipe can be made as Laval nozzle, and so-called reducing and expansion district is the zone that section area changes in the vial; Described Jet injector has three interfaces at least or claims passage, i.e. motive fluid jetburner, driven fluid entrance and fluid output; Described Jet injector can comprise a plurality of motive fluid jetburners, in the structure that comprises a plurality of motive fluid jetburners, described motive fluid jetburner can be arranged in the pipeline center district of described driven fluid entrance, also can be arranged near the tube wall of described driven fluid entrance, described motive fluid jetburner also can be the annular spray mouth around described driven fluid inlet pipe wall.

In the utility model, described Jet injector comprises the Multi-stage jet pump, multiple jets pump and Pulsed Jet Pump etc.

In the utility model, according to the known technology in heat energy and power field, necessary parts, unit or system are set in the place of necessity.

The beneficial effects of the utility model are as follows:

The utility model is simple in structure, and efficient is high.

Description of drawings

Shown in Figure 1 is the utility model embodiment 1 structural representation;

Shown in Figure 2 is the utility model embodiment 2 structural representation;

Among the figure:

1 motor, 2 Jet injectors, 11 air outlet flues, 12 exhaust bypass tubes, 13 intake ducts, 21 Jet injector motive fluid jetburners, 22 Jet injector fluid outputs, 3 control valves.

Embodiment

Embodiment 1

Jet EGR motor as shown in Figure 1, comprise motor 1 and Jet injector 2, air outlet flue 11 at described motor 1 is established exhaust bypass tube 12, described exhaust bypass tube 12 is communicated with the motive fluid jetburner 21 of described Jet injector 2, and the fluid output 22 of described Jet injector 2 is communicated with the intake duct 13 of described motor 1.

Part in the high pressure gas of motor, spray into described intake duct 13 through described exhaust bypass tube 12 by described motive fluid jetburner 21, and cause gas flow in the described intake duct 13, in described intake duct 13 air inlet is compressed, the air inlet after the compression enters in the firing chamber of described motor 1 burns.

Selectively, Jet injector described in the present embodiment 2 can be made as traditional Jet injector, also can be non-traditional Jet injector.

Selectively, Jet injector described in the present embodiment 2 can be made as the structures such as Multi-stage jet pump, multiple jets pump and Pulsed Jet Pump.

Embodiment 2

Jet EGR motor as shown in Figure 2 is with embodiment 1 difference: establish control valve 3 at described exhaust bypass tube 12.

Selectively, the described exhaust bypass tube 12 in above-described

embodiment

1 or 2 is established cooler.

Obviously; the utility model is not limited to above embodiment, according to known technology and the technological scheme disclosed in the utility model of related domain, can derive or association goes out many flexible programs; all these flexible programs also should be thought protection domain of the present utility model.

Claims

1. jet EGR motor, comprise motor (1) and Jet injector (2), it is characterized in that: the air outlet flue (11) at described motor is established exhaust bypass tube (12), described exhaust bypass tube (12) is communicated with the motive fluid jetburner (21) of described Jet injector (2), and the fluid output (22) of described Jet injector (2) is communicated with the intake duct (13) of described motor (1).

2. jet EGR motor as claimed in claim 1 is characterized in that: establish control valve (3) at described exhaust bypass tube (12).

3. jet EGR motor as claimed in claim 1 or 2 is characterized in that: establish cooler at described exhaust bypass tube (12).