Engine intake manifold

Abstract

The utility model relates to an engine intake manifold. An engine intake manifold includes an intake manifold body and a first intake port in fluid receiving communication with the intake manifold body. The first intake port includes a first rib portion adjacent the intake manifold body and a first chamfered portion adjacent the first rib portion. The engine intake manifold also includes a second intake port in fluid receiving communication with the intake manifold body. The second intake port includes a second rib portion adjacent the intake manifold body and a second chamfered portion adjacent the second rib portion. The second rib portion is in fluid communication with the first rib portion.

Description

Technical Field

[0001] The present disclosure generally relates to the design of an intake manifold and a cylinder head in an internal combustion engine system. Background Art

[0002] An internal combustion engine includes an intake manifold that distributes air, fuel, and / or recirculated exhaust gas to the engine cylinders. The intake manifold is responsible for evenly distributing the air and / or fuel to the cylinders. It may be desirable to increase the velocity of the fluid flow through the intake manifold. Utility Model Content

[0003] One embodiment of the present disclosure relates to an engine intake manifold. The engine intake manifold includes an intake manifold body and a first intake port connected to the intake manifold body in a fluid receiving manner. The first intake port includes a first rib portion adjacent to the intake manifold body and a first chamfered portion adjacent to the first rib portion. The engine intake manifold also includes a second intake port connected to the intake manifold body in a fluid receiving manner. The second intake port includes a second rib portion adjacent to the intake manifold body and a second chamfered portion adjacent to the second rib portion. The second rib portion is in fluid communication with the first rib portion.

[0004] In some embodiments, the first intake port further includes a third rib portion adjacent to the intake manifold body and proximate to the first rib portion.

[0005] In some embodiments, the second intake port further includes a fourth rib portion adjacent to the intake manifold body and proximate to the second rib portion, the fourth rib portion being in fluid communication with the third rib portion.

[0006] In some embodiments, the first rib portion and the second rib portion comprise a V-shape.

[0007] In some embodiments, the first rib portion and the second rib portion directly form a fluid connection between the first intake port and the second intake port.

[0008] In some embodiments, the first chamfered portion includes a first conical segment of the first inlet port, and the first chamfered portion is substantially positioned along the length of the first inlet port; and the second chamfered portion includes a second conical segment of the second inlet port, and the second chamfered portion is substantially positioned along the length of the second inlet port.

[0009] In some embodiments, the engine intake manifold further includes: a third intake port including a third chamfered portion; and a fourth intake port including a fourth chamfered portion, wherein the first intake port and the second intake port are located between the third intake port and the fourth intake port.

[0010] Another embodiment relates to a cylinder head. The cylinder head includes a cylinder head body defining a first intake port cavity and a second intake port cavity. The cylinder head body further defines a first rib receiving portion that is sized to receive one or more rib portions of one or more intake ports. The rib receiving portion is located between the first intake port cavity and the second intake port cavity.

[0011] Another embodiment relates to a cylinder head, comprising: a cylinder head body, which defines a first intake port cavity and a second intake port cavity; and a first rib receiving portion, which is sized to receive one or more rib portions of one or more intake ports, and the first rib receiving portion is located between the first intake port cavity and the second intake port cavity.

[0012] In some embodiments, the first rib receiving portion is located at an upper portion of the cylinder head.

[0013] In some embodiments, the first rib receiving portion comprises a V-shape.

[0014] In some embodiments, the cylinder head further includes: a first chamfered portion, the first chamfered portion being adjacent to the first rib receiving portion, the first chamfered portion partially defining the first intake port cavity; and a second chamfered portion, the second chamfered portion being adjacent to the first rib receiving portion, the second chamfered portion partially defining the second intake port cavity.

[0015] In some embodiments, the first chamfered portion includes a first tapered segment extending substantially along the length of the first inlet port cavity; and the second chamfered portion includes a second tapered portion extending substantially along the length of the second inlet port cavity.

[0016] In some embodiments, the cylinder head body further defines: a third intake port cavity and a third chamfered portion; and a fourth intake port cavity and a fourth chamfered portion, wherein the first intake port cavity and the second intake port cavity are both located between the third intake port cavity and the fourth intake port cavity.

[0017] In some embodiments, the cylinder head further includes a second rib receiving portion sized to receive one or more of the one or more rib portions of the one or more intake ports, the second rib receiving portion being located between the first intake port cavity and the second intake port cavity and proximate to the first rib receiving portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The foregoing features and other features of the present disclosure will become more fully apparent from the following description and the appended claims taken in conjunction with the accompanying drawings. It should be understood that these drawings depict only several embodiments according to the present disclosure and therefore should not be considered to limit the scope of the present disclosure, which will be described with additional specific description and details through the use of the accompanying drawings.

[0019] Figure 1 is a top view of an engine intake manifold according to an example embodiment.

[0020] Figure 2 yes Figure 1 Detail of a portion of an engine intake manifold.

[0021] Figure 3 is a front view of a cylinder head according to an example embodiment.

[0022] Figure 4 is along Figure 3 A cross-sectional view of the cylinder head taken along line AA.

[0023] Figure 5 is along Figure 3 Another cross-sectional view of the cylinder head taken along line BB.

[0024] Figure 6 yes Figure 5 Detail of a cross section of a cylinder head. DETAILED DESCRIPTION

[0025] Embodiments described herein generally relate to intake manifold and cylinder head systems and assemblies for internal combustion engine systems.

[0026] like Figure 1 and Figure 2As shown, the engine intake manifold 100 includes an intake manifold body 102. A first intake port 104 is in fluid receiving communication with the intake manifold body 102. The first intake port 104 includes a first rib portion 106 adjacent to the intake manifold body 102 and a first chamfered portion 108 adjacent to the first rib portion 106. A second intake port 110 is also in fluid receiving communication with the intake manifold body 102. The second intake port 110 includes a second rib portion 112 adjacent to the intake manifold body 102 and a second chamfered portion 114 adjacent to the second rib portion 112. The second rib portion 112 is in fluid communication with the first rib portion 106.

[0027] Go to Figure 1 , an engine intake manifold 100 is shown. Typically, the engine intake manifold 100 includes an intake body 102 having an intake passage 116 and one or more intake ports (e.g., a first intake port 104, a second intake port 110, a third intake port 118, and a fourth intake port 120), the one or more intake ports being configured as one or more channels. The channel may include a distribution channel 122, which may lead to a bifurcated segment of one or more curved channels 124. Internal fins may guide fluid flow through the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120 (e.g., from the intake passage 116 to one or more distribution channels 122, and into one of the curved channels in the one or more curved channels 124). The curved passage 124 of each of the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120 distributes the fluid to one or more engine cylinders (not shown). The first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120 receive a fluid such as intake air, fuel, and / or recirculated exhaust gas, and distribute the fluid to the engine cylinders.

[0028] exist Figure 1 and Figure 2 In the embodiment of the present invention, two of the curved channels 124 correspond to one of the cylinders. For example, the first intake port 104 includes a distribution channel 122 that supplies fluid to two of the curved channels 124, which in turn supply fluid to one of the cylinders. In other embodiments, any number of curved channels 124, or the first intake port 104, the second intake port 110, the third intake port 118, or the fourth intake port 120 can correspond to any number of cylinders.

[0029] The engine intake manifold 100 can be part of an engine system (e.g., a system that generates electricity using an internal combustion engine) (not shown) and can be connected to the engine system. In some embodiments, the engine intake manifold 100 is specifically used for engine systems that utilize natural gas (e.g., compressed natural gas, liquefied natural gas, etc.) as a fuel source. The engine system can be configured to run using only natural gas, or can be dual fuel (using gasoline or natural gas). In some embodiments, the engine system is configured to run using diesel fuel (e.g., B10 fuel, B20 fuel, etc.), ethanol, renewable gas (e.g., biogas), or other fuel types. The engine system can be on a vehicle (e.g., a car, a truck, a multi-purpose vehicle, a ship, etc.). In some embodiments, the engine system is used for a fixed engine system (e.g., a generator, a pump, etc.).

[0030] In some embodiments, the size and configuration of the engine intake manifold 100 are designed to accommodate the number of engine cylinders in the engine system. For example, the engine intake manifold 100 may be configured for an inline four-cylinder engine, or may be configured for a V-6 engine. The engine may include any number of cylinders (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.) arranged in an engine configuration (e.g., an inline engine, a V-type engine, a flat engine, a W-type engine, etc.). For example, the engine may be a straight-6 configuration, wherein the straight-6 engine has six cylinders arranged in a row. The engine may be of any size displacement (e.g., 1 liter, 1.5 liters, 2 liters, 2.5 liters, 3 liters, 3.5 liters, 4 liters, 4.5 liters, 5 liters, 6 liters, 7 liters, 8 liters, etc.). In some embodiments, the engine system may include more than one engine intake manifold 100.

[0031] The engine intake manifold 100 may be formed of aluminum, cast iron, steel, composite plastic, carbon fiber, or a similar material that can be mounted on an engine. The engine intake manifold 100 may be formed as one part (e.g., cast, etc.) or may be formed of several parts that are connected (e.g., bolted, fastened, welded, adhered, etc.). In some embodiments, different parts of the engine intake manifold 100 may be formed of different materials. For example, a portion of the engine intake manifold 100 may be formed of a first material, while another portion may be formed of a second material that is different from the first material.

[0032] like Figure 1 and Figure 2As shown, the first intake port 104 includes a first rib portion 106 adjacent to the intake manifold body 102. The first rib portion 106 is configured as a passage between the intake manifold body 102 and the first intake port 104. The first rib portion 106 is positioned at an angle relative to the first intake port 104. Figure 1 and Figure 2 In the embodiment of FIG. 1 , the first rib portion 106 is shown as being positioned at an angle of approximately 45 degrees relative to the first intake port 104 , although other angles are possible.

[0033] The outer wall of the first rib portion 106 has a generally rectangular shape with curved edges and generally curved faces. The first rib portion 106 can take other shapes (e.g., circular, oval, square, rectangular, etc.), and the outer wall of the first rib portion 106 can have uncurved edges and / or faces. The first rib portion 106 can increase the volume of the engine intake manifold 100, so that the volume of the fluid flowing through the engine intake manifold 100 increases. The first rib portion 106 can also increase the flow rate of the fluid flowing through the engine intake manifold 100.

[0034] The engine intake manifold 100 also includes a first chamfered portion 108 adjacent to the first rib portion 106. The first chamfered portion 108 includes a tapered section of the first intake port 104. The first chamfered portion 108 is positioned substantially along the length of the first intake port 104. The first chamfered portion 108 helps guide the fluid to flow downward along the length of the first intake port 104 from the first rib portion 106. The first chamfered portion 108 tapers downstream from a first section of the first intake port 104 adjacent to the intake manifold body 102 to a second section of the first intake port 104. In other embodiments, the first chamfered portion 108 may taper in another manner, or may be shaped differently. After the fluid enters the intake passage 116 through the intake manifold body 102, the fluid flows through the first rib portion 106 into the first chamfered portion 108, then into one or more curved passages in the curved passage 124, and finally into the cylinder.

[0035] like Figure 1 and Figure 2 As shown, the engine intake manifold also includes a second intake port 110. Similar to the first intake port 104, the second intake port 110 includes a second rib portion 112 adjacent to the intake manifold body 102. The second rib portion 112 is configured as a passage between the intake manifold body 102 and the second intake port 110. The second rib portion 112 is positioned at a certain angle relative to the second intake port 110. Figure 1 and Figure 2In the embodiment of FIG. 1 , the second rib portion 112 is shown as being positioned at an angle of approximately 45 degrees relative to the second intake port 110 , but other angles are possible.

[0036] The outer wall of the second rib portion 112 has a generally rectangular shape with curved edges and generally curved surfaces. The second rib portion 112 may take other shapes (e.g., circular, oval, square, rectangular, etc.), and the outer wall of the second rib portion 112 may have uncurved edges and / or faces. The second rib portion 112 may increase the volume of the engine intake manifold 100, thereby increasing the volume of the fluid flowing through the engine intake manifold 100. The second rib portion 112 may also increase the flow rate of the fluid flowing through the engine intake manifold 100.

[0037] The second rib portion 112 is in fluid communication with the first rib portion 106. The first rib portion 106 and the second rib portion 112 substantially form an inverted V-shape (i.e., two substantially straight lines form legs that intersect at an apex and define an angle between the first rib portion 106 and the second rib portion 112), such that the upstream ends of the first rib portion 106 and the second rib portion 112 are connected to approximately form an apex of the inverted V-shape, while the length of each of the first rib portion 106 and the second rib portion 112 forms a leg of the inverted V-shape. The second rib portion 112 is positioned at an approximately 90 degree angle relative to the first rib portion 106, however, the angle between the first rib portion 106 and the second rib portion 112 may vary. The first rib portion 106 and the second rib portion 112 together directly form a fluid connection between the first intake port 104 and the second intake port 110.

[0038] The engine intake manifold 100 also includes a second chamfered portion 114 adjacent to the second rib portion 112. The second chamfered portion 114 includes a tapered section of the second intake port 110. The second chamfered portion 114 is positioned substantially along the length of the second intake port 110. The second chamfered portion 114 helps guide the fluid to flow downward along the length of the second intake port 110 from the second rib portion 112. The second chamfered portion 114 tapers downstream from the first section of the second intake port 110 adjacent to the intake manifold body 102 to the second section of the second intake port 110. In other embodiments, the second chamfered portion 114 may taper in another manner, or may be shaped differently. After the fluid enters the intake passage 116 through the intake manifold body 102, the fluid flows through the second rib portion 112 into the second chamfered portion 114, then into one or more curved passages in the curved passage 124, and finally into the cylinder.

[0039] In addition Figure 1 and Figure 21 and 2 are shown in FIG. 1. Similar to the first rib portion 106, the first intake port 104 includes a third rib portion 126 adjacent to the intake manifold body 102 and proximate to the first rib portion 106. Figure 1 and Figure 2 In the embodiment of FIG. 1 , the third rib portion 126 is positioned proximate to the first rib portion 106 at a more rearward position (e.g., behind the first rib portion 106, etc.). The third rib portion 126 is configured as a passage between the intake manifold body 102 and the first intake port 104. The third rib portion 126 is positioned at an angle relative to the first intake port 104.

[0040] exist Figure 1 and Figure 2 In the embodiment of the present invention, the third rib portion 126 is shown as being positioned at an angle of approximately 45 degrees relative to the first intake port 104, but the angle may vary in various embodiments. The outer wall of the third rib portion 126 has a generally curved surface. The third rib portion 126 may take other shapes (e.g., circular, oval, square, rectangular, etc.), and the outer wall of the third rib portion 126 may have uncurved edges and / or faces. The shape of the third rib portion 126 may be similar to the first rib portion 106, or the shape of the third rib portion 126 may be different from the first rib portion 106. The third rib portion 126 may increase the volume of the engine intake manifold 100, thereby increasing the volume of the fluid flowing through the engine intake manifold 100. The third rib portion 126 may also increase the flow rate of the fluid flowing through the engine intake manifold 100.

[0041] The second intake port 110 includes a fourth rib portion 128 adjacent to the intake manifold body 102 and proximate to the second rib portion 112. Figure 1 and Figure 2 In the embodiment of FIG. 1 , the fourth rib portion 128 is positioned proximate to the second rib portion 112 at a more rearward position (e.g., behind the second rib portion 112, etc.). The third rib portion 126 is configured as a passage between the intake manifold body 102 and the second intake port 110. The fourth rib portion 128 is positioned at an angle relative to the second intake port 110. Figure 1 and Figure 2 In the embodiment of FIG. 1 , the fourth rib portion 128 is shown as being positioned at an angle of approximately 45 degrees relative to the second intake port 110 , although other angles are possible.

[0042] The outer wall of the fourth rib portion 128 has a generally curved face. The fourth rib portion 128 may take other shapes (e.g., circular, oval, square, rectangular, etc.), and the outer wall of the fourth rib portion 128 may have uncurved edges and / or faces. The shape of the fourth rib portion 128 may be similar to the second rib portion 110, or the shape of the fourth rib portion 128 may be different from the second rib portion 110. The fourth rib portion 128 may increase the volume of the engine intake manifold 100, thereby increasing the volume of the fluid flowing through the engine intake manifold 100. The fourth rib portion 128 may also increase the flow rate of the fluid flowing through the engine intake manifold 100.

[0043] The fourth rib portion 128 is in fluid communication with the third rib portion 126. The third rib portion 126 and the fourth rib portion 128 substantially form an inverted V-shape (i.e., two substantially straight lines form legs that intersect at an apex and define an angle between the third rib portion 126 and the fourth rib portion 128), such that the upstream ends of the third rib portion 126 and the fourth rib portion 128 are connected to approximately form an apex of the inverted V-shape, while the length of each of the third rib portion 126 and the fourth rib portion 128 forms a leg of the inverted V-shape. The fourth rib portion 128 is positioned at an approximately 90 degree angle relative to the third rib portion 126, however, the angle between the third rib portion 126 and the fourth rib portion 128 may vary. The third rib portion 126 and the fourth rib portion 128 together directly form a fluid connection between the first intake port 104 and the second intake port 110.

[0044] continue Figure 1 , the engine intake manifold 100 may also include a third intake port 118 and a fourth intake port 120. The first intake port 104 and the second intake port 110 may be located between the third intake port 118 and the fourth intake port 120, or the intake ports may be arranged or numbered differently. In some embodiments, the engine intake manifold 100 may have less than four intake ports or more than four intake ports. Any such intake port may be similarly constructed, include chamfered segments, and / or include rib portions, or may not include.

[0045] The third intake port 118 may include a third chamfered portion 130 adjacent to the intake manifold body 102. The third chamfered portion 130 includes a tapered section of the third intake port 118. The third chamfered portion 130 is positioned substantially along the length of the third intake port 118. The third chamfered portion 130 helps guide the fluid to flow downward from the intake manifold body 102 along the length of the third intake port 118. The third chamfered portion 130 tapers downstream from a first section of the third intake port 118 adjacent to the intake manifold body 102 to a second section of the third intake port 118. In other embodiments, the third chamfered portion 130 may taper in another manner or may be shaped differently. After the fluid enters the intake passage 116 through the intake manifold body 102, the fluid flows through the third chamfered portion 130, then enters one or more of the curved passages 124, and finally enters the cylinder. In some embodiments, the third intake port 118 may not have a third chamfered portion 130.

[0046] Similar to the third intake port 118, the fourth intake port 120 may include a fourth chamfered portion 132 adjacent to the intake manifold body 102. The fourth chamfered portion 132 includes a tapered section of the fourth intake port 120. The fourth chamfered portion 132 is positioned substantially along the length of the fourth intake port 120. The fourth chamfered portion 132 helps guide the fluid to flow downward along the length of the fourth intake port 120 from the intake manifold body 102. The fourth chamfered portion 132 tapers downstream from a first section of the fourth intake port 120 adjacent to the intake manifold body 102 to a second section of the fourth intake port 120. In other embodiments, the fourth chamfered portion 132 may taper in another manner, or may be shaped differently. After the fluid enters the intake passage 116 through the intake manifold body 102, the fluid flows through the fourth chamfered portion 132, then enters one or more of the curved passages 124, and finally enters the cylinder. In some embodiments, the fourth intake port 120 may not have the fourth chamfered portion 132 .

[0047] like Figures 3 to 6 As shown, the cylinder head 300 includes a cylinder head body 302. The cylinder head body 302 defines a first intake port cavity 304 and a second intake port cavity 306. The cylinder head 300 also includes a first rib receiving portion 308 that is sized to receive one or more intake ports 104, 110 (e.g., Figure 1 and Figure 2 One or more rib portions (eg, first rib portion 106, second rib portion 112, etc.) (eg, Figure 1 and Figure 2 The first rib receiving portion 308 is located between the first inlet port cavity 304 and the second inlet port cavity 306 .

[0048] Now go to Figures 3 to 5 , a cylinder head 300 is shown. The cylinder head 300 may be formed of aluminum, cast iron, steel, composite plastic, carbon fiber, or a similar material that can be mounted on an engine. The cylinder head 300 may be formed as one part (e.g., cast, etc.) or may be formed together by several parts that are connected (e.g., bolted, fastened, welded, adhered, etc.). In some embodiments, different parts of the cylinder head 300 may be formed of different materials. For example, a portion of the cylinder head 300 may be formed of a first material, while another portion may be formed of a second material that is different from the first material. The cylinder head 300 may be connected to a cylinder block (not shown).

[0049] The cylinder head 300 includes a cylinder head body 302. Generally, the cylinder head body 302 defines one or more intake port cavities (e.g., a first intake port cavity 304, a second intake port cavity 306, a third intake port cavity 312, and a fourth intake port cavity 314). The first intake port cavity 304, the second intake port cavity 306, the third intake port cavity 312, and the fourth intake port cavity 314 are sized to receive the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120 to couple the engine intake manifold 100 to the cylinder head 300. The first intake port cavity 304, the second intake port cavity 306, the third intake port cavity 312, and the fourth intake port cavity 314 are sized to receive the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120, and the first intake port cavity 304, the second intake port cavity 306, the third intake port cavity 312, and the fourth intake port cavity 314 are similarly configured as one or more channels. The channel may correspond to the distribution channel 122 of the intake manifold 100, and the distribution channel 122 may lead to a bifurcated segment corresponding to one or more curved channels 124 of the intake manifold 100.

[0050] The cylinder head body 302 may also define internal fins corresponding to any internal fins of the intake manifold 100, which may direct fluid flow through the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120. The cylinder head body 302 defines a first intake port cavity 304, which may correspond to the first intake port 104 and is sized to receive the first intake port 104. The cylinder head body 302 also defines a second intake port cavity 306, which may correspond to the second intake port 110 and is sized to receive the second intake port 110.

[0051] The cylinder head 300 also includes a first rib receiving portion 308. The first rib receiving portion 308 can be sized to receive one or more of the rib portions (e.g., the first rib portion 106, the second rib portion 112, etc.) of the intake port of one or more of the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120. In this way, the first rib receiving portion 308 can be positioned between the first intake port cavity 304 and the second intake port cavity 306. For example, a first portion of the first rib receiving portion 308 adjacent to the first intake port cavity 304 can be sized to receive the first rib portion 106, and a second portion of the first rib receiving portion 308 adjacent to the second intake port cavity 306 can be sized to receive the second rib portion 112. The first rib receiving portion 308 can be located at an upper portion or a central portion of the cylinder head 300, or can be positioned elsewhere relative to the cylinder head 300 or the cylinder head body 302.

[0052] The first rib receiving portion 308 is substantially formed into an inverted V-shape corresponding to the inverted V-shape formed by the first rib portion 106 and the second rib portion 112, such that the upstream end of the first rib receiving portion 308 approximately forms the apex of the inverted V-shape, and the length of each half of the first rib receiving portion 308 forms the legs of the inverted V-shape. The first rib receiving portion 308 forms an angle of approximately 90 degrees, however, the angle formed by the first rib receiving portion 308 can vary. Each half of the first rib receiving portion 308 has a substantially rectangular shape with curved edges and substantially curved faces. The first rib receiving portion 308 can take other shapes (e.g., circular, oval, square, rectangular, etc.), and the surface of the first rib receiving portion 308 can have uncurved edges and / or faces.

[0053] The cylinder head 300 also includes a second rib receiving portion 310. The second rib receiving portion 310 can be sized to receive one or more of the ribs of the one or more intake ports 104, 110, 118, 120. Therefore, the second rib receiving portion 310 can be positioned between the first intake port cavity 304 and the second intake port cavity 306, and close to (e.g., near) the first rib receiving portion 308. For example, a first portion of the second rib receiving portion 310 adjacent to the first intake port cavity 304 can be sized to receive the third rib portion 126, and a second portion of the second rib receiving portion 310 adjacent to the second intake port cavity 306 can be sized to receive the fourth rib portion 128. The second rib receiving portion 310 can be located in a central portion or a lower portion of the cylinder head 300, or can be positioned elsewhere relative to the cylinder head 300 or the cylinder head body 302.

[0054] The second rib receiving portion 310 is substantially formed into an inverted V-shape corresponding to the inverted V-shape formed by the third rib portion 126 and the fourth rib portion 128, so that the upstream end of the second rib receiving portion 310 approximately forms the apex of the inverted V-shape, and the length of each half of the second rib receiving portion 310 forms the leg of the inverted V-shape. The second rib receiving portion 310 forms an angle of approximately 90 degrees, however, the angle formed by the second rib receiving portion 310 can vary. Each half of the second rib receiving portion 310 has a curved edge and a substantially curved face. The second rib receiving portion 310 can take other shapes (e.g., circular, oval, square, rectangular, etc.), and the surface of the second rib receiving portion 310 can have uncurved edges and / or faces.

[0055] continue Figures 3 to 5 , the cylinder head body 302 defines a third intake port cavity 312 and a fourth intake port cavity 314. As with the first intake port cavity 304 and the second intake port cavity 306, the third intake port cavity 312 and the fourth intake port cavity 314 are sized to receive one or more of the first intake port 104, the second intake port 110, the third intake port 118, and the fourth intake port 120 of the engine intake manifold 100. The third intake port cavity 312 may correspond to the third intake port 118 and be sized to receive the third intake port 118. The fourth intake port cavity 314 may correspond to the fourth intake port 120 and be sized to receive the fourth intake port 120. The first intake port cavity 304 and the second intake port cavity 306 may be located between the third intake port cavity 312 and the fourth intake port cavity 314, or the intake port cavities may be arranged or numbered differently.

[0056] In some embodiments, the cylinder head body 302 may define fewer than four intake port cavities or more than four intake port cavities. Any such intake port cavities may be similarly configured, include chamfered segments, and / or include rib receiving portions, or may not be similarly configured.

[0057] Now go to Figure 6, the cylinder head 300 also includes a cavity chamfer portion 600, which can partially define each of the first intake port cavity 304, the second intake port cavity 306, the third intake port cavity 312, and the fourth intake port cavity 314. The first intake port cavity 304, the second intake port cavity 306, the third intake port cavity 312, and the fourth intake port cavity 314 can all include the cavity chamfer portion 600. The cavity chamfer portion 600 is sized to receive any of the first chamfer portion 108, the second chamfer portion 114, the third chamfer portion 130, or the fourth chamfer portion 132. For example, the chamfer portion 600 can partially define the first intake port cavity 304 and can correspond to the size and shape of the first chamfer portion 108. Cavity chamfer portion 600 is dimensioned to receive first chamfer portion 108 , second chamfer portion 114 , third chamfer portion 130 , and fourth chamfer portion 132 , and cavity chamfer portion 600 is similar in structure to first chamfer portion 108 , second chamfer portion 114 , third chamfer portion 130 , and fourth chamfer portion 132 .

[0058] The cavity chamfer portion 600 includes a tapered section of each of the first inlet port cavity 304, the second inlet port cavity 306, the third inlet port cavity 312, and the fourth inlet port cavity 314. The cavity chamfer portion 600 is positioned substantially along the length of each of the first inlet port cavity 304, the second inlet port cavity 306, the third inlet port cavity 312, and the fourth inlet port cavity 314. The cavity chamfer portion 600 tapers downstream from a first section of each of the first inlet port cavity 304, the second inlet port cavity 306, the third inlet port cavity 312, and the fourth inlet port cavity 314 to a second section of each of the first inlet port cavity 304, the second inlet port cavity 306, the third inlet port cavity 312, and the fourth inlet port cavity 314. In other embodiments, the cavity chamfer portion 600 may be tapered in another manner, may be shaped differently, or may not correspond to any of the first chamfer portion 108 , the second chamfer portion 114 , the third chamfer portion 130 , and the fourth chamfer portion 132 .

[0059] It should be noted that the term "exemplary" used herein to describe various embodiments is intended to indicate that such embodiments are possible examples, representatives and / or illustrations of possible embodiments (and such terms are not intended to imply that such embodiments are necessarily particular or excellent examples).

[0060] As utilized herein, the term "substantially" and similar terms are intended to have a broad meaning consistent with common and accepted usage by those of ordinary skill in the art to which the subject matter of the present disclosure belongs. Those skilled in the art who review the present disclosure should understand that these terms are intended to allow description of certain features described and claimed without limiting the scope of these features to the precise numerical ranges provided. Therefore, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations (e.g., within plus or minus five percent of a given angle or other value) of the subject matter described and claimed are considered to be within the scope of the present invention as recited in the appended claims.

[0061] The terms "coupled," "connected," and similar terms as used herein mean the joining of two members directly or indirectly to one another. Such joining may be fixed (e.g., permanent) or movable (e.g., removable or releasable). Such joining may be achieved by the two members, or the two members and any additional intermediate members, being integrally formed as a single unitary body with one another or by the two members, or the two members and any additional intermediate members, being attached to one another.

[0062] In the detailed description, reference is made to the drawings. In the drawings, similar symbols generally identify similar parts unless the context indicates otherwise. It is important to note that the structure and arrangement of the various example embodiments are merely illustrative. Although only a few embodiments are described in detail in the present disclosure, it will be readily appreciated by those skilled in the art who review the present disclosure that many modifications (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, values ​​of parameters, mounting arrangements, use of materials, colors, orientations, etc.) are possible without substantially departing from the novel teachings and advantages of the subject matter described herein. Other substitutions, modifications, changes, and omissions may also be made in the design, operating conditions, and arrangement of the various example embodiments without departing from the scope of the embodiments described herein.

[0063] Although this specification contains many specific implementation details, these should not be interpreted as limitations on any embodiment or the scope of the content that can be claimed, but rather as descriptions of features peculiar to the specific implementation of a specific embodiment. Certain features described in this specification in the context of a separate implementation may also be implemented in combination in a single implementation. On the contrary, the various features described in the context of a single implementation may also be implemented in multiple implementations individually or in any suitable sub-combination. In addition, although features may be described above as working in certain combinations, even initially claimed as such, in some cases, one or more features from the claimed combination may be deleted from the combination, and the claimed combination may point to a variant of a sub-combination or a sub-combination.

Claims

1. An engine intake manifold, characterized in that: The engine intake manifold comprises: Intake manifold body; a first intake port in fluid receiving communication with the intake manifold body, the first intake port comprising a first rib portion adjacent the intake manifold body and a first chamfered portion adjacent the first rib portion; and A second intake port is fluidly connected to the intake manifold body, the second intake port includes a second rib portion adjacent to the intake manifold body and a second chamfered portion adjacent to the second rib portion, the second rib portion being fluidly connected to the first rib portion.

2. The engine intake manifold according to claim 1, characterized in that: The first intake port also includes a third rib portion adjacent to the intake manifold body and proximate to the first rib portion.

3. The engine intake manifold according to claim 2, characterized in that: The second intake port also includes a fourth rib portion adjacent to the intake manifold body and proximate to the second rib portion, the fourth rib portion being in fluid communication with the third rib portion.

4. The engine intake manifold according to claim 1, characterized in that: The first rib portion and the second rib portion include a V-shape.

5. The engine intake manifold according to any one of claims 1 to 4, characterized in that: The first rib portion and the second rib portion directly form a fluid connection between the first intake port and the second intake port.

6. The engine intake manifold according to any one of claims 1 to 4, characterized in that: the first chamfered portion comprises a first tapered section of the first inlet port, the first chamfered portion being positioned substantially along a length of the first inlet port; and The second chamfered portion comprises a second tapered section of the second inlet port, the second chamfered portion being positioned substantially along a length of the second inlet port.

7. The engine intake manifold according to any one of claims 1 to 4, characterized in that: The engine intake manifold also includes: a third air intake port, the third air intake port comprising a third chamfered portion; and A fourth air intake port includes a fourth chamfered portion, and the first air intake port and the second air intake port are located between the third air intake port and the fourth air intake port.

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