• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CYLINDER HEAD COVER MODULE WITH INTEGRATED VALVE SET An internal combustion engine includes a cylinder block, a cylinder head and a cylinder head cover module attached to the cylinder head. The cylinder head cover module includes passages and various reception aspects for valve kit components. A housing can be integrally formed with the cylinder head cover module. The cylinder head cover module can include components from a non-integrated valve control system and can be used in an in-line or V-shaped engine.
    公开号:BR112013016366B1
    申请号:R112013016366-6
    申请日:2011-12-19
    公开日:2021-02-09
    发明作者:Richard H. Sands；Alan G. Falkowski
    申请人:Chrysler Group Llc；
    IPC主号:
    专利说明:

    FIELD
    [001] The technology here refers in general to multi-cylinder internal combustion engines and more particularly to hydraulically operated valve control assemblies on such engines. BACKGROUND
    [002] The core of a vehicle's internal combustion engine is formed by its cylinders. The combustion of gases and other combustion materials takes place inside the cylinders and makes the movement of pistons whose energy is transferred to the driving axis of the vehicle. The cylinders include multiple valves that allow the various products of combustion and exhaust into and out of the combustion chamber. The proper operation of these valves is crucial to providing the proper mixture of combustion products at appropriate times in the combustion chambers in order to produce optimum energy from the engine.
    [003] Historically, cylinders were completely enclosed in an engine block. The engine block was machined by casting which included not only the cylinders and their components, but also coolant passages and other necessary engine parts. The engine block was usually made of cast iron and was designed to be strong and also provide a housing that prevented products from leaking into and out of the combustion chambers. Due to the importance of preventing leaks into and out of the combustion chambers, and due to the need for a strong casing, the engine block was manufactured as a single complex unit.
    [004] More recently, however, advances in manufacturing have been allowed for the use of a cylinder block with cylinders capped by a separate head. The cylinder head is mounted on the cylinder block and often includes a combustion chamber part for each cylinder. The head can also include openings to allow combustion products within the combustion chambers. Because the cylinders in a vehicle engine are often arranged adjacent to each other, the cylinder head typically consists of a single metal plate that includes the various combustion chamber components and openings for multiple cylinders in the engine. The head is often made of nickel-reinforced aluminum.
    [005] The openings in the head that allow combustion products in the combustion chambers and the exhaust out of the chambers are regulated by the intake and exhaust valves. The operation of the intake and exhaust valves is facilitated by an electromechanical system referred to as a camshaft. A camshaft in general includes the valves themselves and also several hydraulically actuated devices to open and close the valves such as rockers, push rods, cams and cam shafts. In a non-integrated valve timing, for example, hydraulic devices are electronically controlled. In many implementations, parts of the electronically controlled hydraulic device are housed in a single “brick” structure. The brick structure includes many of the elements that form the electronically controlled hydraulic device for the variable operation of the intake and exhaust valves, as well as all the ducts of the hydraulic system associated with this device. The brick often includes an aluminum housing that is attached to the top of the head.
    [006] A cover can be used to enclose and protect the brick and the head. The cover also prevents oil from leaking from the brick and head into the outer engine compartment. Historically, the hedge functions were primarily passive, with no active role being played by the hedge. The cover can be made of aluminum or plastic.
    [007] The manufacturing requirements of producing and assembling a separate head, brick and cover result in a complex and expensive process that requires fitting and sealing multiple parts together. To prevent oil leakage, a tight seal is required between the multiple parts. In addition, the headstock, brick and cover pile use a significant amount of engine space available in a vehicle. Consequently, there is a desire to reduce the complexities and size of the head, brick and cover pile. SUMMARY
    [008] In several exemplary modalities, the technology described here provides an internal combustion engine with a head cover module. An internal combustion engine includes a cylinder block, a cylinder head and a cylinder head cover module attached to the cylinder head. The head cover module includes passages and a plurality of receiving features for camshaft components. A housing can be integrally formed with a head cover module to include passages and / or one or more reception facilities for camshaft components. The head cover module can include components from a non-integrated camshaft such as a valve control system and can be used in in-line and V-shaped engines.
    [009] In another embodiment, a head cover is described. The cover module includes a housing having passages for hydraulically actuated valves.
    [010] In an additional embodiment, a vehicle engine is described with one or more cylinder blocks that includes a plurality of cylinders. The vehicle engine also includes a cylinder head mounted on each of the cylinder blocks. The head encloses a plurality of cylinders. A head cover module is also attached to each of the cylinder heads. The head cover module includes a housing for a plurality of hydraulically actuated valves.
    [011] In yet another embodiment, a method of assembling an internal combustion engine for a vehicle is described. In the method, a cylinder head is attached to a cylinder block, the cylinder block being coupled to a drive set. A head cover module is attached to the head, where the head cover module includes a housing for a plurality of hydraulically actuated valves and is electronically coupled to a valve control system.
    [012] Additional areas of applicability of the present invention will become apparent from the detailed description and claims provided hereinafter. It should be understood that the detailed description, including described modalities and drawings, is merely exemplary in nature for illustration purposes only and is not intended to limit the scope of the invention, its application or use. Thus, variations that do not deviate from the essence of the invention are intended to be within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS
    [013] Figure 1 illustrates an additional head, brick and cover assembly; Figure 2 illustrates a head assembly and cover module according to the described mode; Figures 3A and 3B illustrate a cover module assembly according to a described embodiment; Figure 4 shows an assembly of the head and cover module according to the described mode; Figures 5A and 5B illustrate a part of a V-shaped motor with a head and brick assembly; and Figures 6A and 6B illustrate a part of a V-shaped motor with a head assembly and cover module in accordance with a described embodiment. DETAILED DESCRIPTION
    [014] To reduce the complexities of mounting and sealing, and more effectively use the head cover and available engine space, the brick and head cover can be integrated as a single unit, the head cover module. The integrated module results in a few camshaft components to be assembled and sealed together and a smaller vertical profile.
    [015] Without integration, the brick in general includes one or more of the following components: solenoids, safety valves, valve actuators, a hydraulic pump, pump actuator arm, pump actuator pivot arm, accumulation chamber, spring pump return, oil temperature sensor and a factory oil fill hole. The integrated module, therefore, can include each of the identified brick components in addition to other components generally associated with a head cover, for example. Various embodiments of the integrated module include passages for the flow of fluids in it and receiving features configured to retain, guide, and / or lock a variety of valve control components. Additional camshaft components that can be integrated into the cover module include an oil filter, oil filler housing one or more cam position sensors, a head cover gasket, a low pressure oil reservoir gasket -are service and installation screws and bolts.
    [016] Figure 1 illustrates a traditional head, brick and cover assembly 100. brick 110 is designed to attach and seal to head 120. Cover 130 is designed to also attach to head 120 and completely seal and protect the assembly from head and brick 100. Head 120 includes modifications that are required to attach to brick 110 and cover 130. Because different vehicles have different height limitations with respect to the vehicle's engine compartments, several bricks and covers have been designed to conform to various height restrictions. This often results in the need to modify the head 120 as well.
    [017] In Figure 2, however, the brick and the roof were combined into an integrated roof module 210, which is then attached to a head 220 to form a roof module and head 200 assembly according to a described embodiment. here. The cover module 210 seals on the head 220. Thus, the number of components required to be sealed and sealed on the head 220 is reduced. In addition, the assembly complexity is also reduced. The integrated roof module 210 has a smaller vertical profile than the profile that results from the separate brick and roof assembly. The lower vertical profile allows the cover module 210 to be used in a wider variety of vehicles, as the smaller cover module 210 is not constrained by space like the non-integrated assembly. The standardization resulting from the cover modules 210 also results in the head 220 requiring few modifications to attach to the cover module 210.
    [018] As described above, cover module 210 includes components normally associated with a brick. For example, in Figure 3A, cover module 210 is illustrated as including a hydraulic cylinder 310, a solenoid 320, a pump 370. An alternative embodiment, cover module 210 may include a cam shaft 330, as shown in Figure 3A. Additionally, the cover module 210 includes hydraulic passages that are aligned with an associated head 220 to allow the operation of the functions normally associated with a brick. For example, as illustrated in Figure 3B, cover module 210 may include hydraulic passages and receiving features such as, for example, grooves, cavities, indentations, holes and protuberances that can be used to receive, orient and / or lock components normally associated with a brick. In Figure 3B, cover module 210 includes a pocket receiving feature 340 for solenoid 320, a pump receiving feature 350, and hydraulic accumulators 360. In some embodiments, the module will include a housing portion having passages for the flow of fluid in the same and / or one or more of the receiving resources. In some modalities, the accommodation part will be formed entirely with the module. Depending on the particular design configuration and manufacturing methods, a module may include a separate housing part that may have some or all of the passageways and reception facilities where another part of the module may include other passageways and / or reception facilities.
    [019] The reduction in the number of parts required in the cylinder assembly results in savings and a total reduction in complexity. Few components generally result in fewer assembly-related problems or errors made during assembly. A reduction in components generally results in a reduction in investment for machining costs. Additional savings are made through the reduced need to modify the head.
    [020] Figure 4 illustrates a combined module 300 of head 220 and cover module 210. Cover module 210 includes the brick integrated with the brick functions wheels. Typical brick functions include the operation of solenoids, safety valves, valve actuators and hydraulic pump take place within cover module 210. Thus, cover module 210 is not simply a passive component, but rather a component with moving parts that contribute to the function of the camshaft. For example, in a non-integrated valve system, cover module 210 will include cams and electronic devices to regulate valve opening and closing. In other valve systems, other mechanical and / or electrical components can be included within the cover module 210.
    [021] The cover module 210 can be made using aluminum casting methods that result in low porosity. Semi-solid casting processes can be used that include injection of solids and other methods to reduce the porosity of the cover module. Other casting methods that can be used include sand casting and permanent mold casting.
    [022] The space-saving benefits of the cover module described allow the cover module to be used on V-shaped engines. V-shaped engines (for example, a V-6 or V-8 engine) include a V-shaped part that significantly restricts the amount of vertical space available above the cylinder heads. For example, Figure 5A shows a 400 part of a V-shaped motor. The illustrated part 400 includes a conventional head 120 and a typical brick 110 with cover 130. Note that there is very little space available between brick 110- and the cover 130 and an overlying pipe 410 for a separate head cover. Figure 5B illustrates the conventional combination of brick 110 and roof 130 and demonstrates that the combined combination of height of brick 110 and roof 130 is 107 cm (from an assembly plan of the head 120 to the top of the roof 130 ). Figure 6A, in contrast, illustrates the same part 400 of a V-shaped motor with the cover module described 210 mounted on the top of the head 220. A horizontal line 420 in Figures 5A and 6A indicates the same height in both engines, from the crankshaft centerline to the top of the head cover. While brick 110 and cover 130 in Figure 5A rises above horizontal line 420 and leaves little to no extra environment, cover module 210 in Figure 6A rises just above horizontal line 420 in just two locations and demonstrates space savings total. In Figure 6B, the cover module 210 is illustrated only to be 89 cm high (from the head mounting plane 220 on top of the cover module 210). Thus, as a result of this space saving, the cover module described 210 allows the use of valve control systems not used so far in V-shaped engines.
    权利要求:
    Claims (10)
    [0001]
    1. Head cover module, FEATURED for understanding: a cover unit integrally formed with a valve control housing, the combination of cover unit and valve control housing adapted to be fixed to a head as a control module -head opening, the head cover module having a plurality of receiving features for valve timing components and also including at least one of each of a hydraulic cylinder, a solenoid, a pump and a cam shaft, where the head cover module has a vertical profile measured from a head mounting plane to an upper portion of the cover unit that is lower than 107 cm.
    [0002]
    2. Head cover module, according to claim 1, CHARACTERIZED by the fact that the head cover module is adapted to be sealed to the head.
    [0003]
    3. Head cover module, according to claim 1, CHARACTERIZED by the fact that the valve control housing includes a plurality of passages for hydraulically actuated valves.
    [0004]
    4. Vehicle engine, FEATURED for comprising: one or more cylinder blocks that each include a plurality of cylinders; a head mounted on each cylinder block and enclosing the plurality of cylinders; and a head cover module attached to each of the cylinder heads, the head cover module including an integrally formed cover unit with a camshaft housing and having a plurality of receiving features for camshaft components and also including a hydraulic cylinder, a solenoid, a pump and a cam shaft.
    [0005]
    5. Vehicle engine, according to claim 4, CHARACTERIZED by the fact that each head cover module is sealed to a corresponding head.
    [0006]
    6. Vehicle engine, according to claim 4, CHARACTERIZED by the fact that the head cover module houses components of a non-integrated valve control system.
    [0007]
    7. Vehicle engine, according to claim 6, CHARACTERIZED by the fact that the vehicle engine is a V-shaped engine.
    [0008]
    8. Vehicle engine according to claim 6, CHARACTERIZED by the fact that the vehicle engine is an inline engine.
    [0009]
    9. Vehicle engine according to claim 4, CHARACTERIZED by the fact that the valve control housing includes a plurality of passages for hydraulically actuated valves.
    [0010]
    10. Vehicle engine according to claim 4, CHARACTERIZED by the fact that the non-integrally formed valve control housing and corresponding head cover have a vertical profile of 107 cm.
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    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-12-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-08| B09A| Decision: intention to grant|
    2021-02-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/984,808|2011-01-05|
    US12/984,808|US8833321B2|2011-01-05|2011-01-05|Cylinder head cover module with integrated valve train|
    PCT/US2011/065846|WO2012094142A1|2011-01-05|2011-12-19|Cylinder head cover module with integrated valve train|
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