CN201100150Y

CN201100150Y - A valve driving supply device for engine

Info

Publication number: CN201100150Y
Application number: CNU200720056922XU
Authority: CN
Inventors: 冯子光
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-08
Filing date: 2007-09-08
Publication date: 2008-08-13
Anticipated expiration: 2017-09-08

Abstract

The utility model discloses an air valve driving gas distribution device of an engine, which comprises an air valve which is sleeved with an air valve spring, a rocker arm which drives the air valve to move in a reciprocating mode and a rotary cam which drives the rocker arm to swing, wherein a side cover which is contacted with a low cam is fixedly installed on the rocker arm body, the side cover is covered on an opening of a groove, a piston pin plate is arranged in the groove, a return spring is arranged between the piston pin plate and the rocker arm body, a contact block which is contacted with a high cam is arranged in a longitudinal groove, a spring is arranged between a spring groove and the rocker arm body, an oil channel which is communicated with the groove is arranged on the rocker arm body, the oil channel is connected with a hydraulic-oil channel on a rocker arm shaft, a magnetic valve is arranged on the hydraulic-oil channel, since the product adopts an air valve which can change independently to control, thereby the drain driving gas distribution device can singly control lift range and correct time of the air valve and is provided with multistage variable possibility, thereby self-adaptive air valve gas distribution of the engine is realized, and comparatively good performance indexes under various conditions of the engine are guaranteed.

Description

A kind of valve actuation air distributing device of motor

Technical field

The utility model relates to a kind of valve actuation air distributing device of motor.

Background technique

The size that opens and closes constantly and open path of motor inlet and outlet door is very big to performance impact, the tradition valve actuating mechanism is generally the mechanical type distribution device, it has the low and durable characteristics of energy consumption, but its motion timing and valve lift are fixed, reach best though can guarantee the performance of motor operating mode, but then can not fully take into account other operating modes, this is obviously unfavorable concerning the frequent motor car engine of working conditions change.In view of this, people explore changeable air valve distribution actuation techniques, and have proposed some implementations, as VVT, VTEC, VALVETRONIC or the like.But their structure is not that too complexity is exactly that the effect of air gate distribution is undesirable, thereby is difficult to meet people's usage requirement.

The model utility content

In order to overcome the deficiencies in the prior art, it is a kind of simple in structure that the purpose of this utility model is to provide, the engine-driving air distributing device that air gate distribution is good.

The technological scheme that the invention for solving the technical problem adopted is:

A kind of valve actuation air distributing device of motor, comprise the valve that is set with valve spring, drive the reciprocating rocking arm of valve, and the rotating cam that drives the rocking arm swing, described rotating cam is with the wide camshaft of the two-wheel of physa, its right side is high cam, the left side is low cam, described rocking arm comprises rocker body; be installed with on the rocker body and the contacted side cover of low cam; be provided with slot in the described rocker body, described side cover covers on the slot opening, is placed with the wrist pin sheet in the slot; be provided with return spring between wrist pin sheet and the rocker body; described slot top is provided with the cannelure that communicates with it, is placed with in the cannelure and the contacted contact block of high cam, is provided with spring groove in the contact block; be provided with spring between spring groove and the rocker body; described rocker body is provided with the oil duct that communicates with slot, and oil duct is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve;

As improvement of the technical scheme, described wrist pin sheet is provided with and rushes down oilhole; Described rocker body is provided with the pore that rushes down that communicates with cannelure;

As further improvement in the technical proposal, described contact block is a cylindrical body, and spring groove departs from the center line setting of contact block.

The beneficial effects of the utility model are: this product is because it adopts the valve control of independent variable, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable, because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cut-away view of Fig. 1;

Fig. 3 is the motion state schematic representation of Fig. 2;

Fig. 4 is the B-B cut-away view of Fig. 1;

Fig. 5 is the structural representation of the C of Fig. 4 to the removal side cover.

Embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, comprise the valve 1 that is set with valve spring 11, drive the reciprocating rocking arm 3 of valve 1, and the rotating cam 4 that drives rocking arm 3 swings, valve spring 11 makes motor valve when compression stroke and expansion space stroke be in closed condition, described rotating cam 4 is that its right side is high cam 41 with the wide camshaft of the two-wheel of physa, and the left side is low cam 42.

Described rocking arm 3 comprises rocker body 5; be installed with on the rocker body 5 and the contacted side cover 2 of low cam; be provided with slot 51 in the described rocker body 5; described side cover 2 covers on slot 51 openings; be placed with wrist pin sheet 6 in the slot 51; be provided with return spring 61 between wrist pin sheet 6 and the rocker body 5; described slot 51 tops are provided with the cannelure 52 that communicates with it; be placed with in the cannelure 52 and high cam 41 contacted contact blocks 8; be provided with spring groove 81 in the contact block 8; be provided with spring 7 between spring groove 81 and the rocker body 5; described contact block 8 is a cylindrical body; in order to make wrist pin sheet 6 bigger with the area of contact of contact block 8, spring groove 81 departs from the center line setting of contact block 8; Described rocker body 5 is provided with the oil duct 53 that communicates with slot 51, and oil duct 53 is connected with hydraulic oil channel on the pitman arm shaft, and hydraulic oil channel is provided with solenoid valve.

This product is in order to make hydraulic oil under the control of solenoid valve wrist pin sheet 6 to be promoted forward, and described wrist pin sheet 6 is provided with and rushes down oilhole 62; In addition, also rocker body 5 be provided with communicate with cannelure 52 rush down pore 54.

The working principle of this product is: when motor is worked with lower-speed state, low cam 42 with the wide camshaft of the two-wheel of physa contacts with side cover 2, at this moment regulate the solenoid valve of hydraulic fluid pressure owing to be in open mode, so though high cam 41 is in contact with one another with contact block 8, but its driving spring 7 is in empty moving state, rocking arm 3 is not applied power, at this moment the lift of valve and the lower-speed state of a timing apply engine.

When motor is worked with fast state, the electromagnetic valve hydraulic fluid pressure makes wrist pin sheet 6 overcome the pressure of return spring 61 toward the motion of contact block 8 directions, thereby enter the bottom of contact block 8, withstanding contact block 8 can not move downward, at this moment, high cam 41 with the wide camshaft of the two-wheel of physa contacts with contact block 8, this product has only the same physa when the wide camshaft of two-wheel to contact with rocking arm 3, could realize the purpose that surface of contact switches, the lift of this valve and timing are applicable to the fast state of motor by high cam 41 controls.

When motor was returned to lower-speed state, solenoid valve lowered hydraulic fluid pressure, and at this moment, wrist pin sheet 6 is got back to the origin-location under the pressure of return spring 61, thereby makes the lift of valve and the lower-speed state that timing is returned to motor.

This product is because it adopts the valve control of independent variable, and it is rational in infrastructure, overall weight is identical with the rocking arm of common engine, thereby make it can control the lift and the timing of a valve separately, the possibility that has possessed multistage variable is because this product has simple in structure, easy to operate, thereby realized the self adaption air gate distribution of motor, guaranteed the better performance index of motor under various operating modes.

Claims

1. the valve actuation air distributing device of an engine; Comprise the valve (1) that is set with valve spring (11); Drive the reciprocating rocking arm (3) of valve (1); And the rotating cam (4) that drives rocking arm (3) swing; It is characterized in that: described rotating cam (4) is the two-wheel exterior feature camshaft with physa; Its right side is high cam (41); The left side is low cam (42); Described rocking arm (3) comprises rocker body (5); Be installed with on the rocker body (5) and the contacted side cover of low cam (2); Be provided with slot (51) in the described rocker body (5); Described side cover (2) covers on slot (51) opening part; Be placed with piston pin sheet (6) in the slot (51); Be provided with return spring (61) between piston pin sheet (6) and the rocker body (5); Described slot (51) top is provided with the cannelure (52) that communicates with it; Be placed with in the cannelure (52) and the contacted contact block of high cam (41) (8); Be provided with spring groove (81) in the contact block (8); Be provided with spring (7) between spring groove (81) and the rocker body (5); Be provided with the oil duct (53) that communicates with slot (51) on the described rocker body (5); Oil duct (53) is connected with hydraulic oil channel on the rocker arm shaft, is provided with magnetic valve on the hydraulic oil channel.

2. the valve actuation air distributing device of a kind of motor according to claim 1, it is characterized in that: described wrist pin sheet (6) is provided with and rushes down oilhole (62).

3. the valve actuation air distributing device of a kind of motor according to claim 1 is characterized in that: described rocker body (5) be provided with communicate with cannelure (52) rush down pore (54).

4. the valve actuation air distributing device of a kind of motor according to claim 1, it is characterized in that: described contact block (8) is a cylindrical body, and spring groove (81) departs from the center line setting of contact block (8).