Water jacket for cylinder cover, rib structure for water jacket and cylinder cover

Abstract

The invention relates to a water jacket for a cylinder cover, a rib structure for the water jacket and the cylinder cover. A water jacket for a cylinder head includes an upper water jacket body having a bottom surface and a top surface axially opposite the bottom surface. The water jacket defines a first cylinder opening extending between the bottom surface and the top surface. The first cylinder opening defines a first cylinder axis. The upper water jacket body includes a first set of ribs. Each rib of the first set of ribs extends between the bottom surface and the top surface. The first set of ribs includes a first rib extending away from the bottom surface in a first rib direction at a first non-zero angle relative to the first cylinder axis. The first set of ribs includes a second rib extending away from the bottom surface in a second rib direction and at a second non-zero angle relative to the first cylinder axis.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of and priority to Indian Provisional Application No. 202441029622, filed on April 12, 2024, and the contents of that Indian Provisional Application are incorporated herein by reference in their entirety. Technical Field

[0003] The present application generally relates to a water jacket for a cylinder head. Background Art

[0004] Internal combustion engines include cylinder heads. Internal combustion engines are often subject to large operating loads. These operating loads can cause deformation in the areas of the water jacket and valve train system in the cylinder head. Summary of the Invention

[0005] Various embodiments provide a water jacket for a cylinder head. The water jacket includes an upper water jacket body having a bottom surface and a top surface axially opposite the bottom surface. The upper water jacket body defines a first cylinder opening extending between the bottom surface and the top surface. The first cylinder opening defines a first cylinder axis. The upper water jacket body defines a first boss spaced apart from the first cylinder opening in a first direction. The first boss extends through the upper water jacket body. The first boss defines a first boss axis. The upper water jacket body defines a second boss spaced apart from the first cylinder opening in a second direction different from the first direction. The second boss extends through the upper water jacket body. The second boss defines a second boss axis. The upper water jacket body includes a first set of ribs. Each rib in the first set of ribs extends between the bottom surface and the top surface. The first set of ribs includes a first rib extending along a first plane in a first rib direction away from the bottom surface and at a first non-zero angle relative to the first cylinder axis. The first plane extends through the first cylinder axis and the first boss axis. The first set of ribs includes a second rib extending along a second plane in a second rib direction away from the bottom surface and at a second non-zero angle relative to the first cylinder axis. The second plane extends through the first cylinder axis and the second boss axis.

[0006] In some embodiments, the first plane is substantially coplanar with the second plane, such that the first cylinder axis, the first boss axis, and the second boss axis lie on the first plane and the second plane.

[0007] In some embodiments, the first plane is substantially perpendicular to the second plane, such that the first rib direction is substantially perpendicular to the second rib direction.

[0008] In some embodiments, the first rib extends in the first rib direction close to the first cylinder axis, away from the bottom surface, and toward the first boss axis.

[0009] In some embodiments, the second rib extends in the second rib direction close to the first cylinder axis, away from the bottom surface, and toward the second boss axis.

[0010] In some embodiments, the upper water jacket body further defines: a third boss, the third boss being spaced apart from the first cylinder opening in a third direction different from the first direction and the second direction, the third boss extending through the upper water jacket body, the third boss defining a third boss axis, and a fourth boss, the fourth boss being spaced apart from the first cylinder opening in a fourth direction different from the first direction, the second direction, and the third direction, the fourth boss extending through the upper water jacket body, the fourth boss defining a fourth boss axis.

[0011] In some embodiments, the first group of ribs further includes: a third rib extending away from the bottom surface in a third rib direction along a third plane, the third plane extending through the first cylinder axis and the third boss axis; and a fourth rib extending away from the bottom surface in a fourth rib direction along a fourth plane, the fourth plane extending through the first cylinder axis and the fourth boss axis.

[0012] In some embodiments, the third rib extends in the third rib direction close to the first cylinder axis, away from the bottom surface, toward the third boss axis; and the fourth rib extends in the fourth rib direction close to the first cylinder axis, away from the bottom surface, toward the fourth boss axis.

[0013] In some embodiments, the first plane is substantially coplanar with the third plane; and the first rib direction and the third rib direction are substantially coplanar.

[0014] In some embodiments, the second plane is substantially coplanar with the fourth plane; and the second rib direction and the fourth rib direction are substantially coplanar.

[0015] In some embodiments, the first plane is substantially perpendicular to the second plane.

[0016] In some embodiments, the upper water jacket body defines one or more groups of bosses, the one or more groups of bosses comprising: a first group of bosses comprising the first boss, the second boss, the third boss, and the fourth boss; and a second group of bosses comprising the second boss and the third boss.

[0017] In some embodiments, the upper water jacket body defines a second cylinder opening, the second cylinder opening being spaced apart from the first cylinder opening and extending between the bottom surface and the top surface, the second cylinder opening defining a second cylinder axis, wherein the second boss is spaced apart from the second cylinder opening in the first direction, and the third boss is spaced apart from the second cylinder opening in the fourth direction.

[0018] In some embodiments, the upper water jacket body defines: a fifth boss, the fifth boss being spaced apart from the second cylinder opening in the second direction, the fifth boss extending through the upper water jacket body, the fifth boss defining a fifth boss axis, and a sixth boss, the sixth boss being spaced apart from the second cylinder opening in the third direction, the sixth boss extending through the upper water jacket body, and the sixth boss defining a sixth boss axis; wherein the second group of bosses includes the second boss, the third boss, the fifth boss, and the sixth boss.

[0019] In some embodiments, the upper water jacket body includes a second group of ribs, each rib in the second group of ribs extending from the bottom surface to the top surface, the second group of ribs including: a fifth rib, the fifth rib extending away from the bottom surface in a fifth rib direction along a fifth plane and at the first non-zero angle relative to the second cylinder axis, the fifth plane extending through the second cylinder axis and the second boss axis; a sixth rib, the sixth rib extending away from the bottom surface in a sixth rib direction along a sixth plane and at the second non-zero angle relative to the second cylinder axis, the sixth plane extending through the second cylinder axis and the fifth boss axis; a seventh rib, the seventh rib extending away from the bottom surface in a seventh rib direction along a seventh plane and at a third non-zero angle relative to the second cylinder axis, the seventh plane extending through the second cylinder axis and the sixth boss axis; and an eighth rib extending away from the bottom surface along an eighth plane and at a fourth non-zero angle relative to the second cylinder axis in an eighth rib direction, the eighth plane extending through the second cylinder axis and the third boss axis.

[0020] Various embodiments provide a rib structure for a water jacket. The rib structure includes a first group of ribs. The first group of ribs defines a central axis. The first group of ribs includes a first rib extending at a first non-zero angle relative to the central axis in a first rib direction. The first group of ribs includes a second rib extending at a second non-zero angle relative to the central axis in a second rib direction. The first group of ribs includes a third rib extending at a third non-zero angle relative to the central axis in a third rib direction. The first rib direction and the third rib direction are substantially coplanar. The first group of ribs includes a fourth rib extending at a fourth non-zero angle relative to the central axis in a fourth rib direction. The second rib direction and the fourth rib direction are substantially coplanar.

[0021] In some embodiments, the rib structure further comprises a second set of ribs. The second set of ribs defines a second central axis and comprises: a fifth rib extending in a fifth rib direction at the first non-zero angle relative to the second central axis; a sixth rib extending in a sixth rib direction at the second non-zero angle relative to the second central axis; a seventh rib extending in a seventh rib direction at the third non-zero angle relative to the second central axis, wherein the fifth rib direction and the seventh rib direction are substantially coplanar; and an eighth rib extending in an eighth rib direction at the fourth non-zero angle relative to the central axis, wherein the sixth rib direction and the eighth rib direction are substantially coplanar.

[0022] Various embodiments provide a cylinder head. The cylinder head includes a water jacket having an upper water jacket body and a lower water jacket body. The upper water jacket body has a bottom surface and a top surface axially opposite the bottom surface. The bottom surface fluidically separates the upper water jacket body from the lower water jacket body. The water jacket defines one or more cylinder openings extending through the upper water jacket body and the lower water jacket body. Each of the one or more cylinder openings defines a cylinder axis. The water jacket defines one or more sets of bosses. Each set of bosses in the one or more sets of bosses is positioned around a corresponding cylinder opening in the one or more cylinder openings. The upper water jacket body includes one or more sets of ribs. Each set of ribs in the one or more sets of ribs corresponds to at least one set of bosses in the one or more sets of bosses. Each set of ribs in the one or more sets of ribs includes a first rib extending away from the bottom surface toward a first boss in the at least one set of bosses at a first non-zero angle relative to the cylinder axis. Each of the one or more sets of ribs includes a second rib extending away from the bottom surface toward a second boss of the at least one set of bosses at a second non-zero angle relative to the cylinder axis.

[0023] In some embodiments, each group of ribs in the one or more groups of ribs includes: a third rib, which extends away from the bottom surface toward a third boss in the at least one group of bosses at a third non-zero angle relative to the cylinder axis; and a fourth rib, which extends away from the bottom surface toward a fourth boss in the at least one group of bosses at a fourth non-zero angle relative to the cylinder axis.

[0024] In some embodiments, the upper water jacket body defines: a chamber defined between the bottom surface and the top surface; one or more inlet ports configured to enable a fluid to flow into the chamber; and one or more outlet ports configured to enable the fluid to flow out of the chamber.

[0025] These and other features, together with the organization and manner of operation thereof, will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, wherein like elements have like numerals throughout the several figures described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of a cylinder head according to an example embodiment.

[0027] Figure 2 yes Figure 1 A top cross-sectional view of the cylinder head.

[0028] Figure 3 yes Figure 1 A first side cross-sectional view of a cylinder head.

[0029] Figure 4 yes Figure 1 A second side cross-sectional view of the cylinder head.

[0030] Figure 5 It is from Figure 1 Front longitudinal side view Figure 1 First diagonal cross-sectional view of a cylinder head.

[0031] Figure 6 It is from Figure 1 posterior longitudinal side observation Figure 1 Second diagonal cross-sectional view of the cylinder head. DETAILED DESCRIPTION

[0032] Embodiments described herein generally relate to a water jacket for a cylinder head and a rib structure for the water jacket. According to various embodiments, the water jacket includes an improved rib structure. The rib structure can advantageously increase the rigidity of the water jacket and / or the cylinder head while using less material, thereby reducing the overall weight of the water jacket and / or the cylinder head.

[0033] Before turning to the drawings, various embodiments of internal combustion engines and components thereof are described herein. It should be understood that while various components are described in detail, these details should be considered as examples only. Furthermore, the details may include variations from those described herein. Therefore, it should be understood that although various components may be described with respect to an embodiment, any component may be used in any other embodiment described herein unless otherwise noted.

[0034] Embodiments of a water jacket for a cylinder head described herein are used in an internal combustion engine and are exposed to repeated loads during operation. Consequently, the cylinder head (and its components) can be substantially rigid, mitigating deformation of components of the internal combustion engine. Advantageously, the embodiments described herein consistently provide an improved rib structure for the water jacket that improves (e.g., increases) the rigidity of the water jacket. Consequently, the increased rigidity of the water jacket can advantageously reduce deformation of components of the internal combustion engine and the valve train system in the cylinder head in the area of ​​the water jacket. Furthermore, the improved rib structure for the water jacket can mitigate deformation of the cylinder head, which can advantageously reduce increased oil consumption or undesirable engine performance in the internal combustion engine.

[0035] refer to Figure 1 , shows a perspective view of a cylinder head 100 according to an example embodiment. Cylinder head 100 can be configured for use in an internal combustion engine that is configured to utilize chemical energy from fuel to generate mechanical energy. Specifically, the internal combustion engine may include at least one cylinder (not shown). The internal combustion engine burns (e.g., burns, etc.) fuel through a combustion process within at least one cylinder (e.g., combustion chamber, etc.) of the internal combustion engine.

[0036] The internal combustion engine includes a piston (not shown) positioned in each cylinder. The internal combustion engine can include any number of cylinders and a corresponding equal number of pistons. For example, the internal combustion engine can include one, two, three, four, five, six, seven, eight, nine, ten, twelve or more cylinders and an equal number of pistons. Each piston is configured to move in the associated cylinder. Each piston is operably connected to the output end of the internal combustion engine to generate mechanical energy (e.g., via a connecting rod and a crankshaft, etc.). Each cylinder can also have a cylinder liner disposed therein. In some embodiments, the cylinder liner is a mid-stop cylinder liner. In some embodiments, the above-mentioned piston and cylinder are positioned differently in the cylinder head 100.

[0037] In some embodiments, cylinder head 100 is configured to be used in a diesel internal combustion engine that consumes diesel fuel. In other embodiments, the internal combustion engine consumes gasoline (gasoline) (e.g., petrol, etc.) and is a gasoline internal combustion engine. In other embodiments, the internal combustion engine consumes natural gas (e.g., liquid natural gas, compressed natural gas (CNG), etc.), biofuels (e.g., biomass, etc.), ethanol (e.g., E-85, etc.), and other similar fuels. In still other embodiments, the internal combustion engine consumes another type of fuel, such as hydrogen fuel, propane, etc. In still other embodiments, the internal combustion engine is a dual-fuel internal combustion engine that consumes two different fuels (e.g., diesel and gasoline, diesel and ethanol, gasoline and ethanol, natural gas and diesel, etc.).

[0038] According to various embodiments, the cylinder head 100 includes a water jacket 104. The water jacket 104 has an upper water jacket body 106. The water jacket 104 may also include a lower water jacket body 108. The upper water jacket body 106 has a bottom surface 132 and a top surface 134 axially opposite the bottom surface 132. The bottom surface 132 fluidically separates the upper water jacket body 106 from the lower water jacket body 108. The water jacket 104 defines one or more cylinder openings 140 extending through the upper water jacket body 106 and the lower water jacket body 108. Each of the one or more cylinder openings 140 defines a cylinder axis 112.

[0039] The water jacket 104 defines one or more sets of bosses 152. Each set of bosses in the one or more sets of bosses 152 is positioned around a corresponding cylinder opening 140 in the one or more cylinder openings 140. The upper water jacket body 106 includes one or more sets of ribs 210. Each set of ribs in the one or more sets of ribs 210 corresponds to at least one set of bosses in the one or more sets of bosses 152. Each set of ribs in the one or more sets of ribs 210 includes a first rib 220 that extends away from the bottom surface 132 toward a first boss 160 in the at least one set of bosses 152 at a first non-zero angle 230 relative to the cylinder axis 112. Each set of ribs in the one or more sets of ribs 210 includes a second rib 222 that extends away from the bottom surface 132 toward a second boss 162 in the at least one set of bosses 152 at a second non-zero angle 232 relative to the cylinder axis 112.

[0040] The cylinder head 100 includes a cylinder head body 102. The cylinder head body 102 includes a water jacket 104. The water jacket 104 is configured to circulate a coolant (such as water or a water mixture) around the cylinder. The water jacket 104 is configured to enable heat transfer from the cylinder to the coolant. Figure 1 As shown, the water jacket 104 includes an upper water jacket body 106 and a lower water jacket body 108 .

[0041] According to various embodiments, a water jacket 104 for a cylinder head 100 includes an upper water jacket body 106 having a bottom surface 132 and a top surface 134 axially opposite the bottom surface 132. The upper water jacket body 106 defines a first cylinder opening 140 extending between the bottom surface 132 and the top surface 134. The first cylinder opening 140 defines a first cylinder axis 112. The upper water jacket body 106 defines a first boss 160. The first boss 160 is spaced apart from the first cylinder opening 140 in a first direction. For example, the first boss 160 is positioned a distance away from the first cylinder opening 140 along the first direction. The first boss 160 extends through the upper water jacket body 106. The first boss defines a first boss axis 170. The upper water jacket body 106 defines a second boss 162. The second boss 162 is spaced apart from the first cylinder opening 140 in a second direction different from the first direction. For example, the second boss 162 is positioned along the second direction at a distance away from the first cylinder opening 140. The second boss 162 extends through the upper water jacket body 106. The second boss 162 defines a second boss axis 172.

[0042] The upper water jacket body 106 includes a first set of ribs 210. Each rib in the first set of ribs 210 extends between the bottom surface 132 and the top surface 134. The first set of ribs 210 includes a first rib 220. The first rib 220 extends along a first plane in a first rib direction 221 away from the bottom surface 132 and at a first non-zero angle 230 relative to the first cylinder axis 112. The first plane extends through the first cylinder axis 112 and the first boss axis 170. The first set of ribs 210 includes a second rib 222. The second rib 222 extends along a second plane in a second rib direction 223 away from the bottom surface 132 and at a second non-zero angle 232 relative to the first cylinder axis 112. The second plane extends through the first cylinder axis 112 and the second boss axis 172.

[0043] The cylinder head body 102 defines one or more cylinder openings 110. Each cylinder opening 110 is sized to receive a corresponding cylinder. Each cylinder opening 110 defines a cylinder axis 112 (eg, a central axis, etc.).

[0044] refer to Figure 2-Figure 6 , showing various cross-sectional views of the cylinder head 100. The various cross-sectional views are taken along Figure 1 The plane shown is cut. Figure 2 is a top view showing a first cross-section along the first plane 120 . Figure 3 is a side view showing a second cross-section along the second plane 122 . Figure 4 is another side view showing a third cross-section along the second plane 122 . Figure 5 is a side view showing a fourth cross-section along the third plane 124 . Figure 2 A third plane 124 is also shown. Figure 6 1 is another side view showing a fifth cross section along the fourth plane 126. The fourth plane 126 is substantially perpendicular to the third plane 124. The fourth plane 126 is also Figure 2 Shown in.

[0045] like Figure 2 As shown, the upper water jacket body 106 defines a chamber 130. The upper water jacket body 106 is configured to receive coolant in the chamber 130. The upper water jacket body 106 defines one or more ports 136. In some embodiments, the upper water jacket body 106 defines a number of ports 136 equal to the number of cylinder openings 110 in the cylinder head 100. In some embodiments, at least one of the one or more ports 136 is configured as an inlet port, which is configured to enable fluid to flow into the chamber 130. In some embodiments, at least one of the one or more ports 136 is configured as an outlet port, which is configured to enable fluid to flow out of the chamber 130.

[0046] like Figure 3 and Figure 4 As shown, the upper water jacket body 106 includes a bottom surface 132. The upper water jacket body 106 includes a top surface 134. The top surface 134 is axially opposed to the bottom surface 132. The chamber 130 is at least partially defined between the bottom surface 132 and the top surface 134.

[0047] Return Reference Figure 2 , the upper water jacket body 106 defines one or more cylinder openings 140 (e.g., a first cylinder opening, a second cylinder opening, etc.). The cylinder openings 140 are sized to receive a corresponding cylinder therein. Each of the one or more cylinder openings 140 is aligned with a corresponding cylinder opening 110. For example, each of the one or more cylinder openings 140 can be centered about a cylinder axis 112. In some embodiments, each of the one or more cylinder openings 140 defines a corresponding cylinder axis 112. Each of the one or more cylinder openings 140 extends between the bottom surface 132 and the top surface 134.

[0048] In the exemplary embodiment, the first cylinder opening 140 extends between the bottom surface 132 and the top surface 134. The first cylinder opening 140 defines the first cylinder axis 112.

[0049] The upper water jacket body 106 defines one or more bosses 150. Each of the one or more bosses 150 corresponds to at least one cylinder opening of the one or more cylinder openings 140. In some embodiments, each of the one or more bosses 150 is part of a set of bosses 152, such that the upper water jacket body 106 defines one or more sets of bosses. Each set of bosses 152 corresponds to one cylinder opening of the one or more cylinder openings. A single boss 150 can be part of more than one set of bosses 152, such that a single boss can correspond to two or more cylinder openings 110 and two or more sets of bosses 152. In some embodiments, the upper water jacket body 106 defines one or more sets of bosses 152. Each set of bosses in the one or more sets of bosses 152 is positioned around a corresponding cylinder opening of the one or more cylinder openings 140. For example, the first group of bosses may include a first boss, a second boss, a third boss, and a fourth boss, and the second group of bosses may include at least one of the first boss, the second boss, the third boss, or the fourth boss.

[0050] Each of the one or more bosses 150 is spaced apart from the corresponding cylinder opening 140 in a corresponding direction. Each of the one or more bosses 150 extends through the upper water jacket body 106 (e.g., between the bottom surface 132 and the top surface 134). Each of the one or more bosses 150 defines a corresponding boss axis.

[0051] The upper water jacket body 106 defines a first boss 160. The first boss 160 may be part of one or more bosses 150 and may be part of at least one set of bosses 152. The first boss 160 is spaced apart from the first cylinder opening 140 in a first direction. The first boss 150 extends through the upper water jacket body 106. The first boss 150 defines a first boss axis 170 (e.g., Figure 5 shown).

[0052] The upper water jacket body 106 defines a second boss 162. The second boss 162 may be part of one or more bosses 150 and may be part of at least one group of bosses 152. The second boss 162 is spaced apart from the first cylinder opening 140 in a second direction different from the first direction. The second boss 162 extends through the upper water jacket body 106. The second boss 162 defines a second boss axis 172 (e.g., Figure 6 shown).

[0053] The upper water jacket body 106 defines a third boss 164. The third boss 164 may be part of one or more bosses 150 and may be part of at least one set of bosses 152. The third boss 164 is spaced apart from the first cylinder opening 140 in a third direction that is different from the first direction and different from the second direction. The third boss 164 extends through the upper water jacket body 106. The third boss 164 defines a third boss axis 174 (e.g., Figure 5 As shown). Figure 5 As shown, first boss axis 170 is substantially coplanar with third boss axis 174. For example, first boss axis 170 and third boss axis 174 may lie on fourth plane 126.

[0054] The upper water jacket body 106 defines a fourth boss 166. The fourth boss 166 may be part of one or more bosses 150 and may be part of at least one set of bosses 152. The fourth boss 166 is spaced apart from the first cylinder opening 140 in a fourth direction that is different from the first direction, different from the second direction, and different from the third direction. The fourth boss 166 extends through the upper water jacket body 106. The fourth boss 166 defines a fourth boss axis 176 (e.g., Figure 6 As shown). Figure 6 As shown, second boss axis 172 is substantially coplanar with fourth boss axis 176. For example, second boss axis 172 and fourth boss axis 176 may lie on third plane 124.

[0055] First boss 160, second boss 162, third boss 164, and fourth boss 166 may be part of a first group of bosses 168 in one or more groups of bosses 152. Each group of bosses 152 may similarly include a first boss, a second boss, a third boss, and a fourth boss that are substantially similar to first boss 160, second boss 162, third boss 164, and fourth boss 166, respectively.

[0056] refer to Figure 2 , the upper water jacket body 106 includes one or more groups of ribs 210. In some embodiments, the one or more groups of ribs 210 are part of the rib structure 200 for the upper water jacket body 106. Each group of ribs in the one or more groups of ribs 210 corresponds to at least one group of bosses in the one or more groups of bosses 150. Each group of ribs in the one or more groups of ribs 210 corresponds to a corresponding cylinder opening 140.

[0057] According to various embodiments, a rib structure 200 for a water jacket includes a first set of ribs 210. The first set of ribs 210 defines a central axis. The first set of ribs 210 includes first ribs 220 extending at a first non-zero angle 230 relative to the central axis in a first rib direction 221. The rib structure 200 includes second ribs 222 extending at a second non-zero angle 232 relative to the central axis in a second rib direction 223. The rib structure 200 includes third ribs 224 extending at a third non-zero angle 234 relative to the central axis in a third rib direction 225. The first rib direction 221 and the third rib direction 225 are substantially coplanar. The rib structure 200 includes fourth ribs 226 extending at a fourth non-zero angle 236 relative to the central axis in a fourth rib direction 227. The second rib direction 223 and the fourth rib direction 227 are substantially coplanar.

[0058] The upper water jacket body 106 includes a first set of ribs 212 (eg, of the one or more sets of ribs 210). Each rib of the first set of ribs 212 extends between the bottom surface 132 and the top surface 134.

[0059] The first set of ribs 212 defines a central axis. In some embodiments, the central axis is collinear with the cylinder axis 112 of the corresponding cylinder opening 140.

[0060] The first set of ribs 212 includes first ribs 220 (eg, Figure 2 、 Figure 3 and Figure 5 As shown). Figure 5 As shown, first rib 220 extends at a first non-zero angle 230 relative to the center axis in a first rib direction 221. First rib 220 extends along a plane in first rib direction 221 away from bottom surface 132 and at a first non-zero angle 230 relative to cylinder axis 112. The plane extends through cylinder axis 112 and first boss axis 170. In some embodiments, the plane is fourth plane 126. First rib 220 extends toward top surface 134.

[0061] The first set of ribs 212 includes second ribs 222 (eg Figure 2 、 Figure 3 and Figure 6 (As shown in FIG. 2 ). Second rib 222 extends at a second non-zero angle 232 relative to the center axis in a second rib direction 223. Second rib 222 extends along a plane in second rib direction 223 away from bottom surface 132 and at a second non-zero angle 232 relative to cylinder axis 112. The plane extends through cylinder axis 112 and second boss axis 172. Second rib 222 extends toward top surface 134.

[0062] The first set of ribs 212 includes a third rib 224 (e.g. Figure 2 、 Figure 4 and Figure 5 As shown). The third rib 224 extends at a third non-zero angle 234 relative to the central axis in a third rib direction 225. Figure 5 As shown, first rib direction 221 and third rib direction 225 are substantially coplanar. For example, first rib direction 221 and third rib direction 225 may lie on fourth plane 126. Third rib 224 extends along a plane in third rib direction 225 away from bottom surface 132. The plane extends through cylinder axis 112 and third boss axis 174. Third rib 224 extends toward top surface 134.

[0063] The first set of ribs 212 includes a fourth rib 226 (e.g. Figure 2 、 Figure 4 and Figure 6 As shown). The fourth rib 226 extends at a fourth non-zero angle 236 relative to the central axis in a fourth rib direction 227. Figure 6 As shown, second rib direction 223 and fourth rib direction 227 are substantially coplanar. For example, second rib direction 223 and fourth rib direction 227 may lie on third plane 124. Fourth rib 226 extends along a plane in fourth rib direction 227 away from bottom surface 132. The plane extends through first cylinder axis 112 and fourth boss axis 176. Fourth rib 226 extends toward top surface 134.

[0064] In some embodiments, a first plane defined by cylinder axis 112 and first boss axis 170 is substantially coplanar with a second plane defined by cylinder axis 112 and third boss axis 174 such that cylinder axis 112 , first boss axis 170 , and third boss axis 174 lie in the first and second planes.

[0065] In some embodiments, the first plane defined by the cylinder axis 112 and the first boss axis 170 is substantially perpendicular to the second plane defined by the cylinder axis 112 and at least one of the second boss axis 172 or the fourth boss axis 176, so that the first rib direction 221 is substantially perpendicular to the second rib direction 223 and / or the first rib direction 221 is substantially perpendicular to the fourth rib direction 227.

[0066] In some embodiments, the first rib 220 extends in a first rib direction 221 proximate the first cylinder axis 112 away from the bottom surface 132 toward the first boss axis 170 .

[0067] In some embodiments, the second rib 222 extends in a second rib direction 223 proximate the first cylinder axis 112 away from the bottom surface 132 toward the second boss axis 172 .

[0068] In some embodiments, third rib 224 extends in a third rib direction 225 proximate first cylinder axis 112 away from bottom surface 132 toward third boss axis 174 .

[0069] In some embodiments, fourth rib 226 extends in fourth rib direction 227 near first cylinder axis 112, away from bottom surface 132, toward fourth boss axis 176 spaced from first cylinder opening 140 and extending between bottom surface 132 and top surface 134. Second cylinder opening 140 defines second cylinder axis 112. Second boss 162 is spaced from second cylinder opening 140 in the first direction, and third boss 164 is spaced from the second cylinder opening in the fourth direction.

[0070] In some embodiments, the upper water jacket body 106 may define a fifth boss spaced apart from the second cylinder opening 140 in the second direction. The fifth boss extends through the upper water jacket body 106. The fifth boss defines a fifth boss axis.

[0071] In some embodiments, the upper water jacket body 106 may define a sixth boss spaced apart from the second cylinder opening 140 in the third direction. The sixth boss extends through the upper water jacket body 106. The sixth boss defines a sixth boss axis. The second set of bosses 152 includes a second boss 162, a third boss 164, a fifth boss, and a sixth boss.

[0072] In some embodiments, the upper water jacket body 106 may include a second set of ribs 210. Each rib in the second set of ribs 210 extends from the bottom surface 132 to the top surface 134. The second set of ribs 210 includes a fifth rib extending away from the bottom surface 132 along a fifth plane in a fifth rib direction and at a first non-zero angle 230 relative to the second cylinder axis 112. The fifth plane extends through the second cylinder axis 112 and the second boss axis 172. The second set of ribs 210 includes a sixth rib extending away from the bottom surface 132 along a sixth plane in a sixth rib direction and at a second non-zero angle 232 relative to the second cylinder axis 112. The sixth plane extends through the second cylinder axis 112 and the fifth boss axis.

[0073] In some embodiments, second set of ribs 210 may include a seventh rib extending along a seventh plane in a seventh rib direction away from bottom surface 132 and at a third non-zero angle 234 relative to second cylinder axis 112. In such embodiments, the seventh plane extends through second cylinder axis 112 and the sixth boss axis.

[0074] In some embodiments, second set of ribs 210 may include an eighth rib extending along an eighth plane in an eighth rib direction away from the bottom surface and at a fourth non-zero angle 236 relative to the second cylinder axis. In such embodiments, the eighth plane extends through second cylinder axis 112 and third boss axis 174.

[0075] It should be noted that the term "exemplary" as 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 term is not intended to imply that such embodiments are necessarily particular or excellent examples).

[0076] 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.

[0077] References herein to element positions (e.g., "top," "bottom," "above," "below," etc.) are intended only to describe the orientation of various elements in the drawings. It should be noted that according to other exemplary embodiments, the orientations of various elements may differ, and such variations are intended to be encompassed by the present disclosure.

[0078] It is important to note that the construction and arrangement of the various exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those skilled in the art who review this disclosure will readily recognize that many modifications (e.g., changes in the size, dimensions, structure, shape and proportion of the various elements, various parameters, mounting arrangements, use of materials, color, orientation, etc.) are possible without substantially departing from the novel teachings and advantages of the subject matter described herein. For example, an element shown as being integrally formed may be composed of multiple parts or elements, the position of the elements may be reversed or otherwise changed, and the nature or number or position of the discrete elements may be changed or varied. According to optional embodiments, the order or sequence of any process or method steps may be changed or rearranged. Other substitutions, modifications, changes, and omissions may also be made in the design, operating conditions, and arrangement of the various exemplary embodiments without departing from the scope of the concepts provided herein.

[0079] Although this specification contains many specific implementation details, these should not be interpreted as limiting the scope of any invention or that may be claimed, but rather as descriptions of features of specific implementations for specific inventions. Certain features described in this specification in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations individually or in any suitable subcombination. In addition, although features may be described above as acting in a particular combination and even initially claimed as such, one or more features from the claimed combination may be deleted from the combination in some cases, and the claimed combination may be directed to a subcombination or a variant of the subcombination.

Claims

1. A water jacket for a cylinder head, comprising: an upper water jacket body having a bottom surface and a top surface axially opposite the bottom surface, the upper water jacket body defining: a first cylinder opening extending between the bottom surface and the top surface, the first cylinder opening defining a first cylinder axis, a first boss spaced apart from the first cylinder opening in a first direction, the first boss extending through the upper water jacket body, the first boss defining a first boss axis, and a second boss spaced from the first cylinder opening in a second direction different from the first direction, the second boss extending through the upper water jacket body, the second boss defining a second boss axis; Wherein, the upper water jacket body comprises: a first set of ribs, each rib in the first set of ribs extending between the bottom surface and the top surface, the first set of ribs comprising: a first rib extending away from the bottom surface in a first rib direction along a first plane and at a first non-zero angle relative to the first cylinder axis, the first plane extending through the first cylinder axis and the first boss axis; and A second rib extends along a second plane in a second rib direction away from the bottom surface and at a second non-zero angle relative to the first cylinder axis, the second plane extending through the first cylinder axis and the second boss axis.

2. The water jacket according to claim 1, wherein: The first plane is substantially coplanar with the second plane such that the first cylinder axis, the first boss axis, and the second boss axis lie on the first plane and the second plane.

3. The water jacket according to claim 1, wherein: The first plane is substantially perpendicular to the second plane, such that the first rib direction is substantially perpendicular to the second rib direction.

4. The water jacket according to claim 1, wherein: The first rib extends in the first rib direction close to the first cylinder axis, away from the bottom surface, and toward the first boss axis.

5. The water jacket according to claim 1, wherein: The second rib extends in the second rib direction close to the first cylinder axis, away from the bottom surface, and toward the second boss axis.

6. The water jacket according to any one of claims 1 to 5, wherein: The upper water jacket body is further defined as: a third boss spaced apart from the first cylinder opening in a third direction different from the first direction and the second direction, the third boss extending through the upper water jacket body, the third boss defining a third boss axis, and A fourth boss is spaced apart from the first cylinder opening in a fourth direction different from the first direction, the second direction, and the third direction, the fourth boss extending through the upper water jacket body, the fourth boss defining a fourth boss axis.

7. The water jacket according to claim 6, wherein: The first set of ribs further comprises: a third rib extending away from the bottom surface in a third rib direction along a third plane, the third plane extending through the first cylinder axis and the third boss axis; and A fourth rib extends along a fourth plane in a fourth rib direction away from the bottom surface, the fourth plane extending through the first cylinder axis and the fourth boss axis.

8. The water jacket according to claim 7, wherein: The third rib extends in the third rib direction close to the first cylinder axis, away from the bottom surface, and toward the third boss axis; and The fourth rib extends in the fourth rib direction close to the first cylinder axis, away from the bottom surface, and toward the fourth boss axis.

9. The water jacket according to claim 7 or 8, wherein: The first plane is substantially coplanar with the third plane; and The first rib direction and the third rib direction are substantially coplanar.

10. The water jacket according to claim 9, wherein: The second plane is substantially coplanar with the fourth plane; and The second rib direction and the fourth rib direction are substantially coplanar.

11. The water jacket according to claim 10, wherein: The first plane is substantially perpendicular to the second plane.

12. The water jacket according to claim 7, wherein: The upper water jacket body defines one or more sets of bosses, the one or more sets of bosses comprising: a first group of bosses, the first group of bosses comprising the first boss, the second boss, the third boss, and the fourth boss; and A second group of bosses, wherein the second group of bosses includes the second boss and the third boss.

13. The water jacket according to claim 12, wherein: The upper water jacket body defines a second cylinder opening that is spaced apart from the first cylinder opening and extends between the bottom surface and the top surface, the second cylinder opening defining a second cylinder axis, wherein the second boss is spaced apart from the second cylinder opening in the first direction, and the third boss is spaced apart from the second cylinder opening in the fourth direction.

14. The water jacket according to claim 13, wherein: The upper water jacket body is defined as: a fifth boss spaced apart from the second cylinder opening in the second direction, the fifth boss extending through the upper water jacket body, the fifth boss defining a fifth boss axis, and a sixth boss, the sixth boss being spaced apart from the second cylinder opening in the third direction, the sixth boss extending through the upper water jacket body, the sixth boss defining a sixth boss axis; The second group of bosses includes the second boss, the third boss, the fifth boss and the sixth boss.

15. The water jacket according to claim 14, wherein: The upper water jacket body includes a second set of ribs, each rib in the second set of ribs extending from the bottom surface to the top surface, the second set of ribs including: a fifth rib extending away from the bottom surface in a fifth rib direction along a fifth plane and at the first non-zero angle relative to the second cylinder axis, the fifth plane extending through the second cylinder axis and the second boss axis; a sixth rib extending along a sixth plane in a sixth rib direction away from the bottom surface and at the second non-zero angle relative to the second cylinder axis, the sixth plane extending through the second cylinder axis and the fifth boss axis; a seventh rib extending away from the bottom surface in a seventh rib direction along a seventh plane and at a third non-zero angle relative to the second cylinder axis, the seventh plane extending through the second cylinder axis and the sixth boss axis; and An eighth rib extends along an eighth plane in an eighth rib direction away from the bottom surface and at a fourth non-zero angle relative to the second cylinder axis, the eighth plane extending through the second cylinder axis and the third boss axis.

16. A rib structure for a water jacket, the rib structure comprising: A first set of ribs, the first set of ribs defining a central axis, and the first set of ribs comprising: a first rib extending in a first rib direction at a first non-zero angle relative to the central axis; a second rib extending in a second rib direction at a second non-zero angle relative to the central axis; a third rib extending in a third rib direction at a third non-zero angle relative to the central axis, wherein the first rib direction and the third rib direction are substantially coplanar; and A fourth rib extends in a fourth rib direction at a fourth non-zero angle relative to the central axis, wherein the second rib direction and the fourth rib direction are substantially coplanar.

17. The rib structure of claim 16, further comprising a second set of ribs, the second set of ribs defining a second central axis, and the second set of ribs comprising: a fifth rib extending in a fifth rib direction at the first non-zero angle relative to the second central axis; a sixth rib extending in a sixth rib direction at the second non-zero angle relative to the second central axis; a seventh rib extending in a seventh rib direction at the third non-zero angle relative to the second center axis, wherein the fifth rib direction and the seventh rib direction are substantially coplanar; and An eighth rib extends in an eighth rib direction at the fourth non-zero angle relative to the central axis, wherein the sixth rib direction and the eighth rib direction are substantially coplanar.

18. A cylinder head comprising: a water jacket having an upper water jacket body and a lower water jacket body, the upper water jacket body having a bottom surface and a top surface axially opposite the bottom surface, the bottom surface fluidly separating the upper water jacket body and the lower water jacket body, the water jacket defining: one or more cylinder openings extending through the upper water jacket body and the lower water jacket body, each of the one or more cylinder openings defining a cylinder axis, and one or more sets of bosses, each set of bosses in the one or more sets of bosses being positioned around a corresponding cylinder opening of the one or more cylinder openings; and Wherein, the upper water jacket body comprises: One or more groups of ribs, each group of ribs in the one or more groups of ribs corresponding to at least one group of bosses in the one or more groups of bosses, and comprising: a first rib extending away from the bottom surface toward a first boss of the at least one set of bosses at a first non-zero angle relative to the cylinder axis; and A second rib extends away from the bottom surface toward a second boss of the at least one set of bosses at a second non-zero angle relative to the cylinder axis.

19. The cylinder head according to claim 18, wherein: Each of the one or more groups of ribs comprises: a third rib extending away from the bottom surface toward a third boss of the at least one set of bosses at a third non-zero angle relative to the cylinder axis; and A fourth rib extends away from the bottom surface toward a fourth boss of the at least one set of bosses at a fourth non-zero angle relative to the cylinder axis.

20. The cylinder head according to claim 18 or 19, wherein: The upper water jacket body is defined as: a chamber defined between the bottom surface and the top surface; one or more inlet ports configured to enable fluid to flow into the chamber; and One or more outlet ports configured to enable the fluid to flow out of the chamber.

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