Air intake heating device and engine for cold start of engine

A heating device and engine technology, which is applied to the starting of the engine, the heat treatment device of the fuel, the engine components, etc., can solve the problems such as the long time required for the heating temperature rise, the decrease of the battery power storage capacity, and the small heating area of ​​the glow plug. , to achieve the effect of reducing the demand for battery power, facilitating compression ignition, and reducing the temperature of the intake air

Active Publication Date: 2021-11-26
TSINGHUA UNIV
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Problems solved by technology

In the prior art, the glow plug is mainly installed in the intake port. Due to the large intake flow of the diesel engine, but the heating area of ​​the glow plug is small, the heating effect is not obvious, and the time required for heating the temperature rise is long , and heating energy consumption puts forward higher requirements on the capacity of the battery equipped with the vehicle, and because the storage capacity of the battery is severely reduced at low temperatures, the implementation of this scheme is poor

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  • Air intake heating device and engine for cold start of engine

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in conjunction with the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] It should be noted that the terms "include" and "have" in the embodiments of this specification and the drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other step...

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Abstract

This specification discloses an intake air heating device and engine for cold start of the engine, the device includes: intake fuel injector, intake duct, battery, heater, reactor, battery positive pole, battery negative pole, wherein: the reaction The reactor is installed in the pipeline near the end of the engine, and the central axis of the reactor is consistent with the central axis of the inlet. The structure of the reactor is a columnar structure with multiple channels, and each internal channel of the reactor The cross-sectional shape is hexagonal, and the hexagonal cross-section between two adjacent internal passages has one side, and the surface of the internal passage is coated with precious metal materials; the intake fuel injector passes through the hole reserved on the intake passage The nozzle hole of the intake fuel injector is installed, and the nozzle direction of the nozzle points to the inlet of the reactor; the heater is arranged in the reserved space of the reactor, and is adapted to the size of the reserved space, and One end of the heater is connected to the positive pole of the battery, and the other end of the heater is connected to the negative pole of the battery.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an intake air heating device and an engine for cold starting of an engine. Background technique [0002] At present, the diesel engine is in a low temperature environment, due to the low intake air temperature, the engine is difficult to start, and the cold start of the diesel engine at low temperature is difficult. At low temperature, the air intake temperature and the cylinder liner of the diesel engine are the same as the ambient temperature, the piston compresses to the top dead center to dissipate heat, the temperature at the end of compression is low, the diesel oil is poorly crushed and atomized, and it is difficult to compress and ignite. In the prior art, the glow plug is mainly installed in the intake port. Due to the large intake flow of the diesel engine, but the heating area of ​​the glow plug is small, the heating effect is not obvious, and the time required for hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M31/04F02N19/04
CPCF02M31/042F02N19/04
Inventor 王志赵自庆诸葛伟林
Owner TSINGHUA UNIV
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