CN202431409U

CN202431409U - Chain saw engine film sheet type air inlet system

Info

Publication number: CN202431409U
Application number: CN201220019662XU
Authority: CN
Inventors: 冷跃辉; 蒋志
Original assignee: ZHEJIANG ZOMAX GARDEN MACHINERY CO Ltd
Current assignee: Zhong Ma gardens, Zhejiang machine limited company
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-09-12
Anticipated expiration: 2022-01-17

Abstract

The utility model provides a chain saw engine film sheet type air inlet system which is characterized in that an air filter is connected with a carburetor connected with a film sheet type check valve connected with a choke support in a channel mode, the choke support is connected with a crank case connected with a cylinder, and a fuel oil box is connected with the carburetor. The chain saw engine film sheet type air inlet system enables air to lead in the cylinder from the crank case, the film sheet type check valve is assembled in an air inlet channel, the structure is compact, air inlet time can be prolonged to the greatest extend, the carburetor can be far away from the cylinder, temperature changes in a working process are fewer, and phenomena that the air inlet system is difficult to start or the air inlet system cannot start at the high temperature can be effectively solved.

Description

Chain saw engine diaphragm type gas handling system

Technical field

The utility model relates to a kind of chain saw, relates to a kind of chain saw engine diaphragm type gas handling system more specifically, belongs to the engine technique field.

Background technique

At present, traditional chain saw, mainly by outer cover, engine, and be integrally formed by the saw chain that engine drove, fuel tank is arranged on the below of sky filter, and gas-entered passageway is arranged on the cylinder of engine.Being required at forestry, domestic consumer's equitemperature by the above-mentioned chain saw of forming is not that very high occasion is widely used, all the time, because engine is the compactness on the control structure; Extensively use with traditional intake method, each component meeting place of custody is very compact, and generates heat in the cylinder operation process; Carburetor is connected on the cylinder; After engine shut down, the high temperature in the cylinder was transmitted on the Carburetor through link, made machine the difficult phenomenon that starts of high temperature occur.So, the cylinder of Carburetor and high temperature is kept apart, can reduce the temperature variation of Carburetor.Yet exist so problem, gas-entered passageway is arranged on the cylinder, and relatively near the firing chamber of high temperature, though one deck heat shield is arranged between Carburetor and cylinder, through the transmission of heat and the thermal radiation of air vent, Carburetor still is in the condition of high temperature.

The model utility content

The utility model provides a kind of chain saw engine diaphragm type gas handling system, and its purpose is the problems referred to above to existing technology, and a kind of compact structure is provided, and avoids the chain saw engine intake of the difficult phenomenon that starts, do not start of high temperature.

The technological scheme that the utility model adopts is following:

A kind of chain saw engine diaphragm type gas handling system is characterized in that: empty filter connects Carburetor, Carburetor junctional membrane sheet type check-valve; The trunnion support of diaphragm type safety check connecting passage form; The trunnion support connects crankcase, and crankcase connects cylinder, and fuel tank is connected with Carburetor.

Above-mentioned trunnion support can be connected with the mode of link on the crankcase, also can be cast into integrative-structure with crankcase.

Above-mentioned empty filter and Carburetor are positioned at the top, and fuel tank is positioned at the below, also can be set to sky filter and Carburetor and be positioned at the below, and fuel tank is positioned at the top.

Empty filter can be left side, right side or over against the diaphragm type safety check with respect to the position of diaphragm type safety check.

The usefulness of the utility model is:

The utility model is to cylinder from the crankcase air inlet; And in gas-entered passageway, be equipped with the diaphragm type safety check; Compact structure, and can prolong period of intake to greatest extent, and make Carburetor away from cylinder; Temperature variation is little in the course of the work, has effectively solved the difficult phenomenon that starts, do not start of high temperature.

Description of drawings

Fig. 1 is first kind of mode of structure schematic representation of the utility model;

Second kind of mode of structure schematic representation that Fig. 2 derives for the mode of structure of Fig. 1;

Fig. 3 is the third mode of structure schematic representation of the utility model;

The 4th kind of mode of structure schematic representation that Fig. 4 derives for the mode of structure of Fig. 3;

The 5th kind of mode of structure schematic representation that Fig. 5 derives for the plan view of the mode of structure of Fig. 1 and Fig. 3;

The 6th kind of mode of structure schematic representation that Fig. 6 derives for the plan view of the mode of structure of Fig. 1 and Fig. 3;

The 7th kind of mode of structure schematic representation that Fig. 7 derives for the plan view of the mode of structure of Fig. 1 and Fig. 3;

The 8th kind of mode of structure schematic representation that Fig. 8 derives for the mode of structure of Fig. 5;

The 9th kind of mode of structure schematic representation that Fig. 9 derives for the mode of structure of Fig. 6.

Embodiment

Arrow line is represented the direct of travel of gas and fuel-air mixture in each view.

Below each safety check be the diaphragm type safety check.

Following trunnion support is the channel-type structure.

As shown in Figure 1; The gas-entered passageway of the utility model chain saw 10 is made up of the empty filter 11, Carburetor 12, diaphragm type safety check 15, channel-type trunnion support 14, crankcase body 16, cylinder 17, the baffler 19 that connect successively in order; Safety check 15 is housed in the trunnion support 14, and empty filter 11 and Carburetor 12 are housed in the top of chain saw 10, and fuel tank 13 is housed in the bottom of chain saw 10; Trunnion support 14 is separate parts, is installed on the crankcase body 16 with the mode of link.Be provided with piston 18 in the crankcase body 16.Fuel tank 13 is connected with Carburetor 12.

As shown in Figure 2; The gas-entered passageway of chain saw 10 is made up of the empty filter 11, Carburetor 12, safety check 15, crankcase body 16, cylinder 17, the baffler 19 that connect successively in order; Safety check 15 is housed in the crankcase body 16, and empty filter 11 and Carburetor 12 are housed in the top of chain saw 10, and fuel tank 13 is housed in the bottom of chain saw 10; Trunnion support 14 is cast as the part that one becomes crankcase body 16 with crankcase body 16, and safety check 15 is located in trunnion support 14 these parts.Be provided with piston 18 in the crankcase body 16.Fuel tank 13 is connected with Carburetor 12.

As shown in Figure 3; The gas-entered passageway of the utility model chain saw 10 is made up of the empty filter 11, Carburetor 12, trunnion support 14, safety check 15, crankcase body 16, cylinder 17, the baffler 19 that connect successively in order; Safety check 15 is housed in the trunnion support 14; Empty filter 11 and Carburetor 12 are housed in the bottom of chain saw 10, and fuel tank 13 is housed in the top of chain saw 10, and trunnion support 14 is installed on the crankcase body 16 with the mode of link.Be provided with piston 18 in the crankcase body 16.Fuel tank 13 is connected with Carburetor 12.

As shown in Figure 4; The gas-entered passageway of chain saw 10 is made up of the empty filter 11, Carburetor 12, safety check 15, crankcase body 16, cylinder 17, the baffler 19 that connect successively in order; Safety check 15 is housed in the crankcase body 16, and empty filter 11 and Carburetor 12 are housed in the top of chain saw 10, and fuel tank 13 is housed in the bottom of chain saw 10; Trunnion support 14 is cast as the part that one becomes crankcase body 16 with crankcase body 16, and safety check 15 is located in trunnion support 14 these parts.Be provided with piston 18 in the crankcase body 16.Fuel tank 13 is connected with Carburetor 12.

Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the side structure schematic representation of four kinds of different structures of the utility model, have reflected the up and down various arrangement mode of each parts in the side.Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 are each parts various arrangement modes in the plane under the plan view situation of the utility model, and it is arranged above and below can be according to the form of Fig. 1, Fig. 2, Fig. 3, Fig. 4.

As shown in Figure 5, chain saw 10 gas-entered passageways comprise empty filter 11, Carburetor 12, the safety check 15 and crankcase body 16 compositions that connects successively, and safety check 15 is housed in the crankcase body 16, and empty filter 11 is housed in the right side of chain saw 10.Also be the right side of empty filter 11 at safety check 15.(relative position just is convenient to describe in the right side here, and the right side/left side in following embodiment and the claim is the convenient vocabulary of describing relative position).

As shown in Figure 6, chain saw 10 gas-entered passageways comprise empty filter 11, Carburetor 12, the safety check 15 and crankcase body 16 compositions that connects successively, and safety check 15 is housed in the crankcase body 16, and empty filter 11 is housed in the left side of chain saw 10.Empty filter 11 is in the left side of safety check 15.

As shown in Figure 7, chain saw 10 gas-entered passageways comprise empty filter 11, Carburetor 12, the safety check 15 and crankcase body 16 compositions that connects successively, and safety check 15 is housed in the crankcase body 16, and empty filter 11 is housed in the middle part of chain saw 10.The position of empty filter 11 is over against safety check 15.

As shown in Figure 8; Chain saw 10 gas-entered passageways comprise empty filter 11, Carburetor 12, trunnion support 14, the safety check 15 and crankcase body 16 compositions that connects successively; Safety check 15 is housed in the trunnion support 14, and empty filter 11 and Carburetor 12 are housed in the right side of chain saw 10.Empty filter 11 is on the right side of safety check 15.

As shown in Figure 9; Chain saw 10 gas-entered passageways comprise empty filter 11, Carburetor 12, trunnion support 14, the safety check 15 and crankcase body 16 compositions that connects successively; Safety check 15 is housed in the trunnion support 14, and empty filter 11 and Carburetor 12 are housed in the left side of chain saw 10.Empty filter 11 is in the left side of safety check 15.

Below sketch the working principle (is example with first kind of mounting structural mode Fig. 1) of the utility model: up during proper functioning through piston 18, produce negative pressure in the crankcase body 16; Under the effect of pressure reduction; Air filters the back through empty filter 11 to be mixed with the atomized fuel of Carburetor 12, gets into trunnion support 14, and safety check 15 is a sealing state with trunnion support 14 edges; Mixed gas backs down safety check 15 reeds, gets in the crankcase body 16.When piston 18 was descending, the compressed mixed gas formed malleations in the crankcase body 16, because of the sealing of safety check 15 reeds, and can instead not flow in the Carburetor 12, so can improve intake efficiency to greatest extent.Chain saw 10 is after shutdown; Cylinder 17 head temperature are still very high; Crankcase body 16 is low with respect to cylinder 17 temperature; The heat that is transmitted to Carburetor 12 through gas-entered passageway is fewer, make that the temperature rising of Carburetor 12 is not high, thereby the difficult phenomenon that starts, do not start of the high temperature of chain saw 10 has good effect.This use new structural design is reasonable, and compactness is installed, and more normal through experiment showed, Carburetor work, other various aspects of performance all have greatly improved.

Claims

1. a chain saw engine diaphragm type gas handling system is characterized in that: empty filter connection Carburetor, Carburetor junctional membrane sheet type check-valve; The trunnion support of diaphragm type safety check connecting passage form; The trunnion support connects crankcase, and crankcase connects cylinder, and fuel tank is connected with Carburetor.

2. chain saw engine diaphragm type gas handling system as claimed in claim 1 is characterized in that: said trunnion support can be connected with the mode of link on the crankcase, also can be cast into integrative-structure with crankcase.

3. chain saw engine diaphragm type gas handling system as claimed in claim 1 is characterized in that: said empty filter and Carburetor are positioned at the top, and fuel tank is positioned at the below, also can be set to sky filter and Carburetor and be positioned at the below, and fuel tank is positioned at the top.

4. chain saw engine diaphragm type gas handling system as claimed in claim 1 is characterized in that: said empty filter can be left side, right side or over against the diaphragm type safety check with respect to the position of diaphragm type safety check.