CN101028623A - Engine shroud - Google Patents

Engine shroud Download PDF

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Publication number
CN101028623A
CN101028623A CNA2007100028933A CN200710002893A CN101028623A CN 101028623 A CN101028623 A CN 101028623A CN A2007100028933 A CNA2007100028933 A CN A2007100028933A CN 200710002893 A CN200710002893 A CN 200710002893A CN 101028623 A CN101028623 A CN 101028623A
Authority
CN
China
Prior art keywords
baffle plate
engine
pressure washer
frame
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007100028933A
Other languages
Chinese (zh)
Inventor
克劳斯·K·卡恩
克林顿·C·查克理
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Create technological limited company of the outdoor products of department
Original Assignee
Techtronic Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Techtronic Industries Co Ltd filed Critical Techtronic Industries Co Ltd
Publication of CN101028623A publication Critical patent/CN101028623A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0211—Case coverings

Abstract

A machine is provided that includes an engine that rotates an operating member. Each of the engine and the operating member is supported on a frame that supports each of the engine and the operating member. A shroud is mounted to the frame independently of the engine and the operating member and the shroud substantially encloses at least a portion of the engine.

Description

Engine shroud
Technical field
The present invention relates to have the portable machine of fuel engines, more specifically, relate to portable pressure rinsing maching with fuel engines.
Background technology
The one side influence of using fuel engines to start pressure washer is that engine can produce a large amount of heats owing to combustion process in operation process.The heat of these generations makes the outer surface of engine become very hot in operation process, if the unsheltered Engine Surface of the direct contact of user can be burnt at an easy rate like this.The pressure washer of prior art has used various veils or baffle plate with the engine shade, contacts engine to prevent the user.Because veil generally directly is attached to the surface of engine, therefore veil must be made by the material with special characteristics, this characteristic allows veil to accept a large amount of heats that engine passes to veil, or alternatively, the size of veil (thickness of veil just) must satisfy veil can receive the heat that produces and pass to veil.
Because the veil of pressure washer must be enough firm, receiving a large amount of heats, thereby usually be challenge in the design for the external tool that uses together with pressure washer provides the mechanism of depositing or parts from engine.Many existing pressure washer are designed to comprise a plurality of clips, ring or other mechanisms, to deposit the external tool that uses together with pressure washer, such as jet pipe, spray gun, rope, nozzle etc.The mechanism of depositing these instruments often is connected on other working portions of handle, handcart (cart) or pressure washer.External tool is left in make on these parts of pressure washer that pressure washer is heavy and lack mobility, and most of user is reluctant to install these external tools.
Owing to the relation of heat and vibrations, consider the material of baffle plate, many baffle plates that are directly installed on the engine can not hold and deposit external tool the past.Especially, be installed in baffle plate on the engine or veil and in operation process, receive a large amount of heats, and thereby reach obviously high temperature from engine.Therefore, baffle plate is thicker relatively usually, is perhaps made by relative thermal resistance material, to stand the temperature of rising.The past baffle plate needs directly to be connected on the engine in design, and this makes baffle plate can not comprise movably mechanism, maybe can not have enough elasticity to hold and deposits for example instrument of spray gun.
In addition, be directly installed on the baffle plate on the engine, in operation process, also receive part or a certain proportion of vibrations that engine or pump produce.Any instrument that is connected on the baffle plate all can receive any vibrations in the baffle plate, thereby becomes to the small part instability with respect to baffle plate in the pressure washer operation process.This unsettled connection may cause being used for removably holding the inefficacy or the destruction of the mechanism of external tool, and this has reduced the operability and the convenience of operating pressure rinsing maching.And baffle plate that shakes in the operating process and the relative motion between the external tool (because external tool have different harmonics because of its inertia with baffle plate) can produce extra noise, the user is divert one's attention and become irritated.
Summary of the invention
The invention provides a kind of pressure washer, this rinsing maching is included in the engine that is connected with pump in the operating process.Engine and pump are all by frame support.Baffle plate is independent of engine and pump is installed on the frame, and wherein, baffle plate to small part centers on and shielding part divides engine.
By following to showing by diagram and the description of the preferred embodiment for the present invention of explanation that advantage of the present invention is more apparent to those skilled in the art.Accessible is that the present invention can have other different embodiments, and details of the present invention can be made amendment according to various considerations.Therefore, drawing and description should be considered as illustrating rather than limiting in essence.
Description of drawings
With reference to the accompanying drawings, the features and advantages of the present invention can better be understood, and wherein identical reference number is represented components identical.
Fig. 1 is the perspective view of pressure washer among the present invention.
Fig. 2 is the perspective view of Fig. 1, and expression does not have the pressure washer that is connected the external tool on the baffle plate.
Fig. 3 is the decomposition diagram of baffle plate and external tool.
Fig. 4 is the right view of pressure washer among Fig. 1.
Fig. 5 is the front view of pressure washer among Fig. 1.
Fig. 6 is the vertical view of pressure washer among Fig. 1.
Fig. 7 is the rearview of pressure washer among Fig. 1.
Fig. 8 is the perspective view of pressure washer second embodiment among the present invention.
Fig. 9 is the decomposition view of pressure washer among Fig. 8.
The specific embodiment
Although the present invention can have a plurality of different embodiments, this specification and accompanying drawing instrument disclose some special shapes as example of the present invention.The explanation that the present invention can't help in specification or the accompanying drawing limits, but scope of the present invention is provided in the claims.
With reference to the accompanying drawings, provide a kind of baffle plate that is used on the machine.The baffle plate that is described below can be applicable to the machine of number of different types, and this machine comprises that engine carries out particular job with the operation element parts.And the baffle plate that is described below can be applicable to various machines with fuel engines, such as pressure washer, generator or air compressor.Although the present invention can be applicable to the machine of number of different types, specific reference making in pressure washer is used for proving absolutely the design.Although those of ordinary skills pass through fully with reference to understanding behind specification and the accompanying drawing, the present invention can successfully be applied to the machine of other types, and for the purpose of brief, we do not have fully to describe the use of this notion on the other types machine.
With reference now to Fig. 1,, provides pressure washer 10.Pressure washer 10 is used to hold the liquid of relatively low pressure, and improves pressure by pump 46 or similar device, up to the pressure of liquid liquid is sprayed from spray gun 92 or similar device with higher speed and pressure.The liquid of ejection can be used for various uses from pressure washer 10.Usually, pressure washer places on the handcart or other movable equipments that wheel is housed, so that pressure washer can be transported at a distance for use.Pump 46 on the pressure washer is usually started by fuel engines 40, and fuel engines 40 comprises rotating driveshaft, and this axle is connected with pump 46 with rotation pump impeller (not shown).In some embodiments, fuel engines 40 is an internal combustion engine.
Accessible as those of ordinary skills, fuel engines in operation process owing to fuel combustion produces a large amount of heats.Although engine has the cooling body of the air-flow (pressure-driven or Natural Circulation) of the fin for example 42 and the engine outer surface of flowing through, these cooling bodies can not prevent effectively that generally the temperature of the outer surface of engine 40 from significantly rising in engine operation process.Therefore, because the temperature of engine 40 is higher in operation process, so the unnecessary heat that exists on the engine outer surface will get on owing to radiation and convection heat transfer' heat-transfer by convection are delivered to adjacent component, and get on owing to heat is delivered to the parts that contact with Engine Surface.Therefore, contact with engine 40 or only the parts of closely approaching pressure washer in operation process, receive a large amount of heats from engine 40, thereby in engine operation process, reach higher temperature.
Engine 40 and such as the appurtenances of fuel tank 14 and pump 46 generally is fixedly mounted on the frame 60.Frame 60 is also as the mounting points of one wheel pairs 12, a plurality of stops (stop) 13, handle 14 and baffle plate or veil 50.Wheel 12 can be installed on the frame independently of one another, or in other embodiments, wheel can rotate around the axle (not shown) that is rotatably mounted on the frame 60 together.The operating mechanism of handle 14 during as movement pressure rinsing maching 10.
Frame 60 can be made of metal, and preferably is made of hollow metal pipe, to satisfy high rigidity but limited weight and material requirements.As shown in the figure, frame 60 comprises vertical rear portion 62, bottom 63 and top 64.Rear portion 62 comprises two vertical rod 62a and horizontal gird 62b (Fig. 7).Wheel 12 sways, and this rotation is installed on each vertical rod 62a.Rear portion 62 also comprises handle 14, and handle 14 may be folded in the vertical rod 62a, and can utilize the knob 14b on each vertical rod 62a to be locked in illustrated extended position.
The bottom 63 comprises two bar 63a, all from separately vertical rod 62a extension.The bottom 63 also comprises front beam 63b, and front beam 63b connects two bar 63a, and is positioned at the position with the basic identical height of crossbeam 62b at rear portion 62.At last, top 64 comprises two bar 64a, the extension of bar 64a from two vertical rod 62a at rear portion 62.Bar 64a is basically perpendicular to vertical rod 62a and extends, and stretches to the front end of machine and be bent downwardly a little with bar 64a.The front end of two bar 64a is connected with crossbeam 64b.
Installing plate 65 can be connected in the crossbeam 62b at rear portion and the crossbeam 63b of bottom 63.Installing plate 65 hold and firm engine 40 in (and under the top 64 in frame 60) on the installing plate, and comprise that the hole (not shown) is to be connected pump 46 with engine 40 in operating process.Pump 46 extends under the installing plate 65 from engine 40.As shown in Figure 1, installing plate 65 is installed on frame 60 by a plurality of securing members 66.In addition, the front end 65a of installing plate 65 and rear end 65b (Fig. 7) are crooked, form stable connection with the curvature that meets frame 60.And, can place between installing plate 65 and the frame 60 such as the vibration-absorptive material (not shown) of rubber, weakening the vibrations that are present in installing plate 65, thereby reduce shock transfer to frame from engine 40 or pump 46.In addition, vibration-absorptive material can have low relatively pyroconductivity, is delivered to frame 60 to prevent the heat in the installing plate 65 substantially by conduction.
Baffle plate 50 is independent of engine 40 and pump 46 is installed on the frame 60.Pressure washer 10 has baffle plate 50, is in order to hide engine 40 so that a kind of protection barrier to be provided to small part, prevents to touch engine 40 unexpectedly in operating process and causes burning or other injuries.As shown in Figure 1, baffle plate 50 is installed on frame 60, and is positioned on the engine 40.
Baffle plate 50 directly is installed on the frame 60, and does not contact with engine 40 or appurtenances.Accessible as those of ordinary skills, because not directly contact between engine 40 and baffle plate 50, so between these two parts, just can not have heat conducting direct path.Like this, reduce the heat that can be delivered to baffle plate 50 effectively, and thereby reduced the maximum temperature of baffle plate in pressure washer 10 operation process.
Baffle plate 50 can be installed on a plurality of positions of frame 60, to improve the stability of baffle plate 50.As shown in Figure 2, baffle plate 50 has the flange 58 of a plurality of extensions, and flange 58 provides being connected of baffle plate and frame 60.As shown in the figure, flange 58 has crooked bottom surface or profile, with the crooked frame 60 of tight contact.Each flange 58 has hole 58a (Fig. 3), to hold securing member in order in the hole that is inserted into frame 60 correspondences.
Damper 62 such as one deck rubber or other similar materials, can place frame 60 and between the baffle plate 50 of each installation site.Damper 62 weakens or stops heat to be delivered to baffle plate 50 (vice versa) from frame 60 substantially, and prevents to be present in any shock transfer of frame 60 substantially to baffle plate 50 (vice versa).Therefore, because damper 62 weakens or prevents from substantially to be delivered to from frame the heat and the vibrations of baffle plate 50, baffle plate 50 can design and make in shape, size and material in a big way, baffle plate 50 reaches the possible of higher temperature in pressure washer 10 operating process and do not have, or baffle plate 50 is subjected to the possibility of huge vibrations.
Can well understand with reference to figure 1-3, baffle plate 50 comprises a plurality of holders 56, in order to hold and to deposit the instrument that uses together with pressure washer 10.Especially, baffle plate 50 comprises the hole 55a that is used to hold spray gun 92, the holder 56a that holds jet pipe 94 and a plurality of holder 56c that is used to hold nozzle 96.As shown in Figure 3, spray gun 92 comprises ledge 92a, and ledge 92a can be inserted in the hole 55a of baffle plate so that spray gun 92 is connected with baffle plate 50.In addition, holder 56a has a plurality of pusher dogs (finger) 56b, to deposit jet pipe 94.Accessible is that spray gun 92 can be deposited by using similar holder 56a as shown in Figure 3 by baffle plate 50.Holder 56a can be threaded or insert among the hole 55a of baffle plate, or in other embodiments, the pusher dog 56b of holder can form as one with baffle plate 50.
As shown in Figure 3, plate 54 is used for fixing a plurality of nozzles 96.Plate 54 comprises that a plurality of hole 54a are used to hold the nose of nozzle 96, also comprise a plurality of locating hole 54b be used for baffle plate 50 on pusher dog 53 cooperate, so that plate 54 is fixed on the baffle plate 50.In the present embodiment, plate 54 can remove so that use in the building site from baffle plate 50 easily apace.In other embodiments, plate 54 forms as one with baffle plate 50.In other embodiments, baffle plate 50 also can comprise holder 56 other or as an alternative, holding and pressure washer 10, or the machine of the similar baffle plate 50 of the use of other types other instruments or the parts that use together.Holder 56 can form as one with baffle plate 50, or is connected on the baffle plate 50 after baffle plate 50 forms.
Baffle plate 50 can be made by various materials.Baffle plate 50 can be made of plastics, and is integrated into monoblock parts.The baffle plate 50 that is made of plastics can make things convenient for and be injected at an easy rate the single parts of required profile.Road as known to persons of ordinary skill in the art, plastics have lower pyroconductivity.And plastics can be injected into has relative elasticity, and this is very useful for the holder 56 that holds some pressure washer instruments.For example, as Figure 1-3, the holder 56a that is used to hold jet pipe 94 can be made up of relative post (arm) 56b, and post 56b is partly around the portion of external volume of inserting the instrument among the post 56b.The post 56b of holder 56a must be fully pliable and tough, need in the holder 56a post 56b is setovered mutually because instrument is inserted into, and post 56b will turn back to their normal positions after in instrument is inserted into holder 56a fully.In other embodiments, baffle plate 50 can be made by metal or other acceptable materials.
Except having a plurality of holder 56a, 56b, baffle plate also comprises a plurality of air vents or shutter 70, acts on the engine 40 to allow air communication to cross baffle plate 50.Be formed at the position of the air vent 70 of baffle plate 50, allow air inlet and exhaust to flow in conjunction with combustion process and the outflow engine.In addition, air vent 70 can be used for allowing air-flow to blow to engine 40 (by the air circulation under nature or the pressure) in operation process, to eliminate heat by convection current.What can understand is that when baffle plate 50 formed the plastic components of injection moulding, air vent 70 can be integrally formed on the baffle plate 50.As selection, after baffle plate 50 initial the shapings, air vent 70 can be formed on the baffle plate 50 in the independent process of being made baffle plate 50 by metal or another kind of similar material.
Second kind of representative embodiments of Fig. 8,9 expression machines.Especially, these figure represent second kind of pressure washer 100.Pressure washer 100 comprises the parts of discussing all about top first embodiment, but utilizes baffle plate or veil 150 fully to cover motor 140 (Fig. 9) and pump (not shown).
Baffle plate 150 is made from multiple components, forepiece 151, left side 152, right side 153, top part 154 and back part 155.Shown in Figure 9 as decomposition view, left side 152 and right side 153 utilize securing member 180 to be connected in frame 160, and the hole that securing member 180 passes baffle component is inserted in the hole 161 of frame.Top part 154 and back part 155 are installed on left side 152 and right side 153 respectively after left side 152 and right side 153 are installed on frame 160.Forepiece 151 is installed on the front beam 164 of frame 160, and utilizes left side 152 and the right side 153 fastening pressure washer that are installed on.Thereby baffle plate is installed on frame 160 and gets along well engine 140 or pump contact.Therefore, the pressure washer of present embodiment comprises the advantage of previous embodiment.Especially, between engine 140 and baffle plate 150, there is not direct heat conduction via.In addition, because baffle plate 150 is not directly connected in engine 140, vibrations can not be directly delivered to baffle plate yet, allow the quieter and more operation of pressure stable rinsing maching like this.As above embodiment in the present embodiment, is equipped with vibration-absorptive material between the side of frame and baffle plate 150, arrives baffle plate 150 with the shock transfer that weakens in the frame.
As above-mentioned embodiment, baffle plate 150 comprises a plurality of mechanisms 156 that hold the instrument that uses together with pressure washer 100.Especially, baffle plate can hold spray gun 92 and jet pipe 94 also has a plurality of nozzles 96.In addition, baffle plate 150 comprises a plurality of air vents 170 along the side and the top of baffle plate 150, allowing air flow direction engine 140 (being encapsulated in substantially in the baffle plate 150) in order to cooling, and allows the air-flow that provides combustion process to need.
Aforementioned the present invention who openly is the inventor designs is used for actual best mode.Yet obviously, the device that is associated with modifications and variations also is tangible for those of ordinary skills.Because aforementioned openly is in order to make those of ordinary skill in the related art can implement the present invention, it should not be construed as and is restricted, thereby should be interpreted as comprising aforesaid significant change, and only is limited within the spirit and scope of claim subsequently.
Therefore, aforementioned detailed explanation should be considered as describing rather than restriction, and what should understand is that claim subsequently comprises all equivalents, is used for limiting the spirit and scope of the present invention.

Claims (23)

1. pressure washer comprises:
(a) engine that in operating process, is connected with pump;
(b) frame of each in support engine and the pump; With
(c) be independent of engine and pump and be installed on the baffle plate of frame, wherein baffle plate is to the small part covering engine.
2. pressure washer according to claim 1, wherein, basic covering engine of baffle plate and pump.
3. pressure washer according to claim 1, wherein, baffle plate also comprises a plurality of air vents, is used to limit the current path that is communicated with engine.
4. pressure washer according to claim 1, wherein, baffle plate is connected in frame by at least one damper, with the vibrations of limiting engine and pump generation.
5. pressure washer according to claim 4, wherein, damper is a rubber.
6. pressure washer according to claim 1, wherein, baffle plate is plastics.
7. pressure washer according to claim 1, wherein, baffle plate is installed on a plurality of distributed locations of frame.
8. pressure washer according to claim 1, wherein, engine and pump all are installed on frame by at least one damper, are delivered to the vibrations of frame with restriction.
9. pressure washer according to claim 1, wherein, baffle plate also comprises at least one fixator, is used to hold and instrument that support and pressure washer are used together.
10. pressure washer according to claim 9, wherein, described at least one fixator and baffle plate form integral body.
11. pressure washer according to claim 9, wherein, described at least one fixator separates formation with baffle plate, is connected on the baffle plate.
12. pressure washer according to claim 1, wherein, when baffle plate was connected on the frame, baffle plate did not contact with pump with engine.
13. a machine comprises:
(a) be used for the engine of rotation working part;
(b) frame of each in support engine and the workpiece; With
(c) be independent of the baffle plate that engine and workpiece are installed on frame, wherein, baffle plate basic cover part engine or part workpiece.
14. machine according to claim 13, wherein, baffle plate has at least one air vent, in order to limit the current path that is communicated with baffle plate outside and engine.
15. machine according to claim 13, wherein, baffle plate is installed on the frame by mechanism, to weaken the vibrations that engine and workpiece produce.
16. machine according to claim 13, wherein, baffle plate also comprises at least one fixator, in order to hold and to support and instrument that this machine uses together.
17. machine according to claim 16, wherein, described at least one fixator and baffle plate form integral body.
18. machine according to claim 16, wherein, described at least one fixator separates formation with baffle plate, is connected on the baffle plate.
19. machine according to claim 13, wherein, when baffle plate was installed on the frame, baffle plate did not contact with engine or workpiece.
20. machine according to claim 13, wherein, this machine is a generator.
21. machine according to claim 13, wherein, this machine is an air compressor.
22. a pressure washer comprises:
(a) engine that in operating process, is connected with pump;
(b) frame of each in support engine and the pump; With
(c) be independent of engine and pump are installed on frame by mechanism baffle plate, be used to limit the vibrations that result from engine or pump, wherein, baffle plate is to the small part covering engine, and comprises that at least one fixator is to hold and instrument fixing and that pressure washer is used together.
23. pressure washer as claimed in claim 22, wherein, baffle plate is installed on a plurality of positions of frame.
CNA2007100028933A 2006-03-03 2007-02-09 Engine shroud Pending CN101028623A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/367,117 US20070207042A1 (en) 2006-03-03 2006-03-03 Engine shroud
US11/367,117 2006-03-03

Publications (1)

Publication Number Publication Date
CN101028623A true CN101028623A (en) 2007-09-05

Family

ID=38226507

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100028933A Pending CN101028623A (en) 2006-03-03 2007-02-09 Engine shroud

Country Status (5)

Country Link
US (1) US20070207042A1 (en)
EP (1) EP1829622B1 (en)
CN (1) CN101028623A (en)
AT (1) ATE535318T1 (en)
AU (1) AU2007200614A1 (en)

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EP1829622B1 (en) 2011-11-30
US20070207042A1 (en) 2007-09-06
AU2007200614A1 (en) 2007-09-20
EP1829622A3 (en) 2007-09-12
ATE535318T1 (en) 2011-12-15
EP1829622A2 (en) 2007-09-05

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