TH44517B - Hollow crankshafts and manufacturing methods for them - Google Patents

Abstract

DC60 hollow cast crankshaft for internal combustion engines and its production method It is revealed in this invention. that can lose weight by removing the core and can prevent bending of the inner core during production and prevents core float during pouring of molten metal so that it can precisely produced and provide good productivity and eliminate the need for oil hole grinding. in the crankshaft this hollow The hollow section has an oval cross-section where the part rotates along. and/or shank section The oil hole of the swivel and shank section is created by removing the spool. The hollow part has a cross section. It is also oval on the arm part. The manufacture of this crankshaft uses an axle that is bent in a horizontal direction and has an oval cross section where The core shaft protrudes in the vertical direction at the swivel part and/or the shaft part. The hollow part and the oil hole are formed into one piece by means of encapsulated casting using the An axis that is bent in a horizontal direction and consists of a number of base plate sections protruding towards the die or extending vertically towards the die. the part that rotates and/or the stem part Invention Summary 20/02/2015 Hollow-cast crankshaft for internal combustion engines and its production method It is revealed in this invention. that can lose weight by removing the core and can prevent bending of the inner core during production and prevents core float during pouring of molten metal so that it can precisely produced and provide good productivity and eliminate the need for oil hole grinding. in the crankshaft this hollow The hollow section has an oval cross-section where the part rotates along. and/or shank section The oil hole of the swivel and shank section is created by removing the spool. The hollow part has a transverse cut. It is also oval on the arm part. The manufacture of this crankshaft uses an axle that is bent in a horizontal direction and has an oval cross section where The core shaft protrudes in the vertical direction at the swivel part and/or the shaft part. The hollow part and the oil hole are formed into one piece by means of encapsulated casting using the An axis that is bent in a horizontal direction and consists of a number of base plate sections protruding towards the die or extending vertically towards the die. the part that rotates and/or the stem part ---------------------------------------------------- -- Hollow-cast crankshaft for internal combustion engines and its production method It is revealed in this invention. that can lose weight by removing the core and can prevent the bending of the core during production and prevents core float during pouring of molten metal so that it can precisely produced and provide good productivity and eliminate the need for oil hole grinding. in the crankshaft this hollow The hollow section has an oval cross-section where the part rotates along. and/or shank section The oil hole of the swivel and shank section is created by removing the spool. The hollow part has a transverse cut. It is also oval on the arm part. The manufacture of this crankshaft uses an axle that is bent in a horizontal direction and has an oval cross section where The core shaft protrudes in the vertical direction at the swivel part and/or the shaft part. The hollow part and the oil hole are formed into one piece by means of encapsulated casting using the An axis that is bent in a horizontal direction and consists of a number of base plate sections protruding towards the die or extending vertically towards the die. the part that rotates and/or the stem part

Claims (7)

(All) claim rights which will not appear on the advertisement page: EDIT 20/02/2015 1. Hollow casting crankshaft for internal combustion engine. In which the crankshaft consists of holes The oil is in the pivot part and / or the oil hole is in the shaft part, the oil hole is created with the shaft removed. Where the cross-section of the hollow part that rotates along And / or the stem is oval. 2. Hollow casting crankshaft. For internal combustion engines The crankshaft consists of holes. The oil is in the rotating part. And / or an oil hole in the shaft that is built with the shaft removed, where the arm section has a hollow section with an elliptical cross-section. 3. Hollow casting crankshaft. As stated in Clause 1, where the arm portion has a hollow 4. A method for producing a hollow cast crankshaft or its material, where a hollow casting crankshaft will be Crankshaft, as set forth in any of Clause 1 to Clause 3 of claims And will use to bend the body of the inner core Horizontal direction Where this axis will have an oval cross-section Where the main axis extends vertically at the Revolving And / or part of the stem The part that rotates along and the shaft of the axis is in sync with the part. Rotate under and the shaft of the crankshaft, respectively. 5. Method for producing hollow casting crankshaft or its material. As stated in claim 4, where the hollow and oil holes are to be built into one piece, By casting a cover with the use of a bent rod. In the horizontal direction It consists of a portion of the base plate of a number protruding towards the mold, the part that rotates along and / or part of the stem. 6. A method for producing a hollow cast crankshaft or its material. As stated in Clause 4 or Article 5, where the hollow and oil holes are formed, they are assembled by casting a cover with a bent rod. In a horizontal direction And consists of a number of baseboards extending vertically toward The mold that rotates along And / or section of the shank 7. A method for producing a hollow cast crankshaft or its material. As stated in any of Clause 4 to 6, where the axial cross section for the crankshaft arm section Will be the cross section of the oval Where the main axis extends vertically -------------------------------------------------- 1.Hollow cast crankshaft for internal combustion engines In which the crankshaft consists of holes The oil is in the pivot part and / or the oil hole is in the shaft part, the oil hole is created with the shaft removed. Where the cross-section of the hollow part that rotates along And / or the stem part will be oval 2. Hollow casting crankshaft For internal combustion engines The crankshaft consists of holes. The oil is in the rotating part. And / or oil holes are in the stem part created with the core removed, where the arm segment has a hollow section with an oval cross-section. 3. Hollow casting crankshaft As stated in Clause 1, where the arm portion has a hollow With an oval cross-section 4.Production method of hollow cast crankshafts or their material, where hollow casting crankshafts will be Crankshaft, as set forth in any of Clause 1 to Clause 3 of claims And will use to bend the body of the inner core Horizontal direction Where this axis will have an oval cross-section Where the main axis extends vertically at the Revolving And / or part of the stem The part that rotates along and the shaft of the axis is in sync with the part. Rotate along and the shaft of the crankshaft respectively. 5.Production method of hollow casting crankshafts or their materials As stated in claim 4, where the hollow and oil holes are to be built into one piece, By casting a cover with the use of a bent rod. In the horizontal direction It consists of a portion of the base plate protruding towards the mold, the part that rotates along and / or the shaft. 6.Production methods for hollowed-out crankshafts or their materials As stated in Clause 4 or Article 5, where the hollow and oil holes are formed, they are assembled by casting a cover with a bent rod. In a horizontal direction And consists of a number of baseboards extending vertically toward The mold that rotates along And / or part of the stem 7.Production method of hollow casting crankshaft or its material As stated in any of Clause 4 to 6, where the axial cross section for the crankshaft arm section Will be the cross section of the oval Where the main axis extends vertically