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Throttle valve for internal combustion engines with pressure and temperature sensors

An internal combustion engine, temperature sensor technology, used in engine control, engine components, machines/engines, etc., can solve problems such as problems, not ideal, etc.

Active Publication Date: 2021-08-06
FAB ITAL MAGNETI MARELLI SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in the throttle valves available on the market, the electronic control unit is able to estimate the flow rate of air with good but not ideal accuracy in case of impairment of the combustion quality in the cylinder; Implementation of limits on exhaust emissions at all engine operating speeds can be problematic

Method used

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  • Throttle valve for internal combustion engines with pressure and temperature sensors
  • Throttle valve for internal combustion engines with pressure and temperature sensors
  • Throttle valve for internal combustion engines with pressure and temperature sensors

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] exist figure 1 , the reference numeral 1 generally denotes a mechanically controlled throttle valve for regulating the flow rate of air drawn in by a small displacement internal combustion engine (usually a single-cylinder engine) installed in a motor vehicle.

[0026] according to figure 1 , figure 2 and image 3 , the throttle valve 1 comprises a valve body 2 at which a tubular supply channel 3 with a circular cross-section is obtained, through which the air drawn in by the internal combustion engine flows. The throttle valve 1 includes a gate (known and not shown) that engages the supply channel 3 and moves (eg by linear translation) between an open position and a closed position to open and close the supply channel 3 . According to a preferred (but not restrictive) embodiment, the valve body 2 is made of a moulded plastic material (for example a glass fibre filled thermoplastic material can be used to increase the mechanical resistance).

[0027] An operating c...

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PUM

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Abstract

A throttle valve (1) for an internal combustion engine and having: a valve body (2); a supply channel (3) obtained in the valve body (2) and through which the air sucked in by the internal combustion engine flows ( 3); the chamber (5), which is arranged next to the supply channel (3); the electronic control unit (7), which is arranged in the chamber (5) and comprises a printed circuit (9), which has An outer surface (10) and an inner surface (11) facing the supply channel (3); a pressure sensor (20) fixed to the inner surface (11) of the printed phone (9) and designed to measure pressure passing through the supply channel (3) the pressure of the air drawn in; and a temperature sensor (23) designed to measure the temperature of the air drawn in through the supply channel (3). The wall of the supply channel (3) has a detection through hole (13) which establishes a communication between the supply channel (3) and the chamber (5) in the region of the pressure sensor (20).

Description

[0001] priority claim [0002] This application claims priority from Italian Patent Application No. 102017000060141 filed on June 1, 2017, the disclosure of which is incorporated herein by reference. technical field [0003] The invention relates to a throttle valve for an internal combustion engine provided with a pressure sensor and a temperature sensor. [0004] The present invention has advantageous application in throttle valves for small displacement internal combustion engines, usually single-cylinder engines, suitable for installation in motor vehicles, as will be apparent from the description below Small displacement internal combustion engines are mentioned without loss of generality. Background technique [0005] In single-cylinder internal combustion engines for motor vehicles there is typically a throttle valve that regulates the flow rate of air supplied to the cylinders. [0006] Typical throttle valves available on the market for single-cylinder internal co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M35/10F02D9/10
CPCF02D9/1035F02D9/105F02M35/1038F02D2200/0406F02D2200/0414F02D2400/18F02M35/10249
Inventor G·罗里托G·邦菲利奥
Owner FAB ITAL MAGNETI MARELLI SPA