CN201696181U

CN201696181U - Improved fuel preheating device of internal combustion engine

Info

Publication number: CN201696181U
Application number: CN2010200606061U
Authority: CN
Inventors: 吐尔逊·斯浪
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2011-01-05
Anticipated expiration: 2020-01-06

Abstract

The utility model discloses an improved fuel preheating device of an internal combustion engine, which comprises a fuel preheating chamber communicated with a cylinder exhaust pipe and a fuel heating tail pipe coming out of the fuel preheating chamber; the fuel heating tail pipe is connected with a high-pressure oil circulating pump; the fuel preheating chamber is connected with an exhaust chamber thereon; and a fuel preheating pipe connected with the high-pressure oil circulating pump is disposed in the exhaust chamber. The improved fuel preheating device can take fully advantage of smoke waste heat produced from the internal combustion engine to raise fuel temperature, ensure sufficient burning of fuel, and reduce pollutant emission.

Description

Improved fuel of internal combustion engine Preheating unit

Technical field

The utility model relates to a kind of internal-combustion engine fuel-firing preheating device, particularly improved fuel of internal combustion engine Preheating unit.

Background technique

Usually, the temperature that improves the fuel oil of internal-combustion engine use in advance can reach the fuel consumption that reduces internal-combustion engine, the purpose of the power of content of harmful and raising internal-combustion engine in the tail gas of reduction engine exhaust, people have designed various fuel of internal combustion engine Preheating units for this reason, as the patent No. is 00268279.6, the Chinese utility model patent that name is called " the fuel-firing preheating device of internal-combustion engine " discloses the fuel-firing preheating device that a kind of high-temperature tail gas that utilizes engine exhaust among the tail gas manifold of internal-combustion engine comes the fuel oil that the preheating internal-combustion engine uses, and it can effectively utilize the fuel oil that high-temperature tail gas that engine exhaust comes out will send into before the internal-combustion engine and carry out preheating.Its deficiency is, the efficient of fuel-firing preheating is high not enough, and the high-temperature tail gas heat energy utilization of internal-combustion engine is insufficient.

The model utility content

The purpose of this utility model is to provide a kind of improved fuel of internal combustion engine Preheating unit, and is not only simple in structure, is easy to make install, and can fully improves the heat energy utilization rate of exhaust gases of internal combustion engines.

The purpose of this utility model is achieved in that a kind of improved fuel of internal combustion engine Preheating unit, comprise fuel-firing preheating chamber that is connected with cylinder exhaust pipe and the fuel Heating tail pipe that from the fuel-firing preheating chamber, passes, the fuel Heating tail pipe links to each other with the cycle of higher pressure oil pump, on the fuel-firing preheating chamber, connecting exhaust chamber, the fuel preheating pipe that links to each other with high-pressure circulation pump is being set in the exhaust chamber.

The utility model installs exhaust chamber additional on the fuel-firing preheating chamber, in exhaust chamber, install fuel preheating pipe additional, further improved the heat energy utilization rate of exhaust gases of internal combustion engines, can make full use of the fume afterheat raising fuel oil temperature that internal-combustion engine produces, guarantee that fuel oil can fully burn, reduce pollutant emission.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing is a linkage structure schematic representation of the present utility model.

Embodiment

A kind of improved fuel of internal combustion engine Preheating unit, as shown in drawings, comprise fuel-firing preheating chamber 10 that is connected with cylinder exhaust pipe and the fuel Heating tail pipe 6 that from fuel-firing preheating chamber 10, passes, fuel Heating tail pipe 6 links to each other with cycle of higher pressure oil pump 11, on fuel-firing preheating chamber 10, connecting exhaust chamber 4, the fuel preheating pipe 5 that links to each other with high-pressure circulation pump 11 is being set in the exhaust chamber 4.

Fuel preheating pipe 5 can be positioned at the middle part of exhaust chamber 4, also can be positioned at exhaust chamber 4 inner bottom parts near fuel-firing preheating chamber 10.

Link together by thread seal between said fuel Heating tail pipe 6 and the fuel-firing preheating chamber 10 or the two directly welds together, improve the tightness of internal-combustion engine.

Said fuel preheating pipe 5 is the pipe of straight tube or bend pipe or volute or other structural type, fuel preheating pipe 5 horizontal arrangement or vertical the layout.

Connecting pressurized machine 3 in the outlet side of exhaust chamber 4, in the body 1 that pressurized machine 3 links to each other with tail gas discharging pipe of internal-combustion engine tail gas of fuel heating pipe 2 is being set, tail gas of fuel heating pipe 2 links to each other with said high-pressure circulation pump 11.

Said tail gas of fuel heating pipe 2 is straight tube or bend pipe or volute, tail gas of fuel heating pipe 2 horizontal arrangement or vertical the layout.

Claims

1. improved fuel of internal combustion engine Preheating unit, comprise fuel-firing preheating chamber (10) that is connected with cylinder exhaust pipe and the fuel Heating tail pipe (6) that from fuel-firing preheating chamber (10), passes, fuel Heating tail pipe (6) links to each other with cycle of higher pressure oil pump (11), it is characterized in that: on fuel-firing preheating chamber (10), connecting exhaust chamber (4), the fuel preheating pipe (5) that links to each other with high-pressure circulation pump (11) is being set in the exhaust chamber (4).

2. improved fuel of internal combustion engine Preheating unit according to claim 1 is characterized in that: said fuel preheating pipe (5) is straight tube or bend pipe or volute, fuel preheating pipe (5) horizontal arrangement or vertical the layout.

3. improved fuel of internal combustion engine Preheating unit according to claim 1 and 2, it is characterized in that: connecting pressurized machine (3) in the outlet side of exhaust chamber (4), in pressurized machine (3) and body that tail gas discharging pipe of internal-combustion engine links to each other tail gas of fuel heating pipe (2) is being set, tail gas of fuel heating pipe (2) links to each other with said high-pressure circulation pump (11).

4. improved fuel of internal combustion engine Preheating unit according to claim 1 is characterized in that: link together by thread seal between said fuel Heating tail pipe (6) and fuel-firing preheating chamber (10).

5. improved fuel of internal combustion engine Preheating unit according to claim 3 is characterized in that: said tail gas of fuel heating pipe (2) is straight tube or bend pipe or volute, tail gas of fuel heating pipe (2) horizontal arrangement or vertical the layout.