CN101929403B - Motorcycle cylinder body with cylinder temperature sensor - Google Patents

Abstract

The invention discloses a motorcycle cylinder block with a cylinder temperature sensor, comprising a cylinder block (1) and a cylinder head (2), wherein the cylinder head (2) is fixed on the top end of the cylinder body (1) by bolts (3) , a cylinder temperature sensor (4) is fixed on the platform (3a) on which the bolt (3) is installed at the rear of the cylinder head (2). The invention cleverly utilizes the platform on the cylinder head and the fastening bolts between the cylinder body and the cylinder head to install the cylinder temperature sensor, which not only meets the fast and stable installation requirements of the cylinder temperature sensor, but also ensures the accuracy and reliability of the cylinder temperature sensor. The transmission of temperature signals has the characteristics of novel conception, simple structure, convenience and reliability, and easy disassembly and assembly.

Description

Motorcycle cylinder block with cylinder temperature sensor

technical field

The invention relates to a motorcycle component, in particular to a cylinder block of a motorcycle engine with a cylinder temperature sensor.

Background technique

The carburetor of ordinary motorcycles supplies oil to the engine mechanically, and the relationship between the amount of oil supplied and the speed or throttle opening can only be a linear relationship, which cannot guarantee that the air-fuel ratio of the engine can reach the ideal under all working conditions and all weathers. At the same time, when the state of the engine itself changes, the carburetor cannot adapt to changes, causing a lot of waste of resources, and increasing the fuel consumption of the engine and deteriorating emissions.

In order to overcome the deficiency of the oil supply method of the mechanical carburetor, various motorcycle manufacturers regard the electronically controlled air supply method as the direction of research and development. There are two types of electronically controlled air supply systems: open-loop and closed-loop. The electronically controlled air supply system is to install an intake pipe on the engine intake manifold and connect it to a bypass solenoid valve. The intake end of the solenoid valve is connected to the air filter, and the engine speed signal is obtained from the ignition coil; The cylinder temperature is sent to the electronic control unit ECU, and the ECU sends a pulse electric signal command to the solenoid valve according to the set program and according to the real-time working conditions of the engine, and controls the secondary air supply through the opening/closing action frequency of the solenoid valve. Intake; and then control the air-fuel ratio of the mixture. The electronically controlled air supply system reduces the fuel consumption of the motorcycle to a certain extent and improves the emission of the motorcycle. As the cutting-edge technology in the current motorcycle field, the electronically controlled air supply technology has been valued by many domestic motorcycle manufacturers, and each manufacturer is gradually developing it. As an important sensing element, the cylinder temperature sensor transmits the temperature signal of the engine cylinder block to the electronically controlled air supply controller to determine whether the engine is in a hot or cold state, and provides a basis for the controller to supply air. How to arrange the cylinder temperature sensor to achieve the best effect is a problem that motorcycle manufacturers are trying to solve.

Contents of the invention

The technical problem to be solved by the present invention is to provide a motorcycle cylinder block with a cylinder temperature sensor, so as to transmit accurate cylinder block temperature signals to the ECU.

The technical scheme of the present invention is as follows: a motorcycle cylinder block with a cylinder temperature sensor, comprising a cylinder block and a cylinder head, wherein the cylinder head is fixed on the top of the cylinder block by bolts, the key lies in: at the rear of the cylinder head A cylinder temperature sensor is fixed on the platform for bolt installation.

Using the above technical scheme, the cylinder temperature sensor is set on the left side of the rear part of the cylinder head, and installed with the help of the bolt installation platform on the cylinder head, so that on the one hand, the problem of the installation of the cylinder temperature sensor is solved; on the other hand, in the motorcycle During driving, the cylinder temperature sensor and the corresponding cylinder head are located in the leeward position, which is less affected by wind cooling, thus ensuring the accuracy of temperature signal transmission.

The above-mentioned cylinder temperature sensor is composed of a resistor, a wire, a protective cover, a resin cover and a socket, wherein the protective cover and the socket are separated on both sides of the resin cover, and the end of the protective cover is fixed to the resin cover and is set on the bolt , the screw head of the bolt is pressed on the bolt installation platform of the cylinder head; the resistor is embedded in the resin sleeve and close to the protective sleeve, the resistor is connected to one end of the wire, and the other end of the wire leads out of the resin sleeve, and Connect with socket. In the above solution, on the one hand, the structure of the cylinder temperature sensor itself is simple, and the production cost is low; on the other hand, the installation of the cylinder temperature sensor is firm, it will not fall off, the performance is guaranteed, and it is very convenient to disassemble and assemble. At the same time, the structure of the cylinder body and the cylinder head does not need to be changed, and the modification cost will not be increased.

Beneficial effects: the invention cleverly utilizes the platform on the cylinder head and the fastening bolts between the cylinder body and the cylinder head to install the cylinder temperature sensor, which not only meets the fast and stable installation requirements of the cylinder temperature sensor, but also ensures the accuracy of the cylinder temperature sensor , Reliable transmission of temperature signals, has the characteristics of novel concept, simple structure, convenient and reliable, easy disassembly and assembly, etc.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a schematic diagram of the structure of the cylinder temperature sensor.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Fig. 1 and Fig. 2, the present invention is made up of parts such as cylinder body 1, cylinder head 2, bolt 3 and cylinder temperature sensor 4, and wherein cylinder head 2 is positioned at the top of cylinder body 1, between the two through a plurality of Bolts 3 that pass from top to bottom are fixed together. Fix the cylinder temperature sensor 4 on the platform 3a on the left side of the rear part of the cylinder head 2 for the installation of the bolt 3. The cylinder temperature sensor 4 is composed of a resistor 4a, a wire 4b, a protective sleeve 4c, a resin sleeve 4d and a socket 4e, wherein The protective cover 4c and the socket 4e are separated on both sides of the resin cover 4d, the protective cover 4c is fixed to the end of the resin cover 4d, and is set on the bolt 3, and the screw head of the bolt 3 is pressed against the bolt of the cylinder head 2 Install on platform 3a. The resistor 4a is embedded in the resin sheath 4d and close to the protective sheath 4c. The resistor 4a is connected to one end of the wire 4b, and the other end of the wire 4b is led out of the resin sheath 4d and connected to the socket 4e.

Claims (1)

1. A motorcycle cylinder block with a cylinder temperature sensor, comprising a cylinder block (1) and a cylinder cover (2), wherein the cylinder cover (2) is fixed on the top of the cylinder block (1) by bolts (3), its It is characterized in that a cylinder temperature sensor (4) is fixed on the platform (3a) for bolt (3) installation at the rear of the cylinder head (2), and the cylinder temperature sensor (4) is composed of a resistor (4a), a wire ( 4b), a protective cover (4c), a resin cover (4d) and a socket (4e), wherein the protective cover (4c) and the socket (4e) are separated on both sides of the resin cover (4d), and the protective cover ( 4c) is fixed with the end of the resin sleeve (4d), and is set on the bolt (3), and the screw head of the bolt (3) is pressed on the bolt installation platform (3a) of the cylinder head (2); the resistor (4a) is embedded in the resin sleeve (4d) and close to the protective sleeve (4c), the resistor (4a) is connected to one end of the wire (4b), and the other end of the wire (4b) is drawn out of the resin sleeve (4d), And connect with socket (4e).

Images