Pulse width modulation valve for controlling boost pressure of turbocharger of gasoline engine
A turbocharger, gasoline engine technology, applied in engine components, combustion engines, machines/engines, etc., can solve the problem that the torque demand cannot be met, the wastegate technology cannot control the turbocharging pressure flexibly, and the turbocharging technology is affected. promotion and other issues to achieve the effect of taking into account both dynamic performance and economic performance
Active Publication Date: 2014-06-11
HUNAN TYEN MACHINERY
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Problems solved by technology
The wastegate technology cannot flexibly control the turbocharger pressure according to the engine design point, and cannot meet the torque demand of the entire working point, and can only reduce the engine power and economic indicators, affecting the promotion of turbocharger technology on gasoline engines
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[0024] A pulse widening valve used for controlling the boost pressure of a gasoline engine turbocharger, which consists of a casing 1 with an electrical signal connector 1-1, a coil bobbin 2, a first gas circuit connector 3, a copper sleeve 4, a dynamic An armature 5, a wear-resistant rubber plug 6, a spring 7, an auxiliary support 8, a coil 9 and a main support 10 are formed. The coil frame 2 is provided with a first gas path joint installation hole 2-2, a second gas path joint 2-5 and a third gas path joint 2-4, the second gas path joint 2-5, and the third gas path joint 2-4 communicates with the first gas path joint installation hole 2-2. Six air grooves 2-1 are arranged on the inner wall of the junction of the first air path joint installation hole 2-2, the second air path joint 2-5, and the third air path joint 2-4, and the six air grooves 2-1 are uniform Distributed on the inner wall of the first gas path joint installation hole 2-2. On the inner wall of the mounting h...
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The invention discloses a pulse width modulation valve for controlling the boost pressure of a turbocharger of a gasoline engine. The pulse width modulation valve consists of a shell, a coil framework, a first air path joint, a copper sleeve, a movable armature, a wear-resistant rubber plug, a spring, a secondary bracket, a coil and a main bracket, wherein the shell is provided with an electrical signal joint. The coil is wound around the coil framework, the shell, the coil framework, the secondary bracket and the main bracket are integrated through injection molding, a coil joint of the coil framework is welded with the electric signal joint of the shell, and the secondary bracket and the main bracket are arranged at two ends of a combination part of the shell and the coil framework. During assembly, the movable armature with the wear-resistant rubber plug is arranged in a mounting hole of the first air path joint of the coil framework, and the spring is arranged in a central air hole on the movable armature. The first air path joint with the copper sleeve is arranged in the mounting hole of the first air path joint on the coil framework and is fixedly connected with a reverse tapered concave ring slot on the inner wall of the mounting hole of the first air path joint through a reverse tapered concave ring of the external circle in an interference fit manner.
Description
technical field [0001] The invention relates to the technical field of supercharging pressure of a gasoline engine turbocharger, in particular to a pulse width regulating valve used for controlling the supercharging pressure of a gasoline engine turbocharger. Background technique [0002] In order to meet the increasingly stringent emission standards, automobile companies need to continuously improve their technology. Turbochargers are environmentally friendly and energy-saving high-tech products for diesel and gasoline power plants. They can improve the working conditions of engines. , so as to meet the high standard emission requirements, supercharging is a technology that must be adopted for the engine to meet higher emission standards. [0003] The traditional supercharged engine is to add a turbocharger to the existing engine to increase the output power. In order to improve the low-speed performance and acceleration of the engine and prevent the turbocharger from overs...
Claims
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IPC IPC(8): F02B37/12F16K31/02
CPCY02T10/144Y02T10/12
Inventor 周峥李文军胡辽平张爱明
Owner HUNAN TYEN MACHINERY