具有装配导向功能的发动机湿式缸套
By setting a guide boss on the outer wall of the engine wet cylinder liner to cooperate with the sealing ring groove, the problem of damage to the sealing ring during cylinder liner assembly is solved, the cylinder liner and cylinder bore are aligned, and the assembly efficiency and cooling effect are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU YUNNEI POWER CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
During the assembly of existing engine wet cylinder liners, improper positioning can cause the water seal ring to be sheared or scratched, leading to oil-water mixing failure. Existing measures can only reduce the frequency of such failures but cannot fundamentally solve the problem.
The design incorporates an assembly guide function for wet cylinder liners. By setting a guide boss on the outer wall of the cylinder liner body that engages with the sealing ring groove, and by guiding the upper cylinder bore with the guide boss, the cylinder liner body is ensured to be aligned with the cylinder bore, thus preventing the sealing ring from being sheared or scratched during assembly.
It effectively solves the problem of cylinder liner misalignment and avoids damage to the water seal ring, improves the assembly effect, prevents oil and water mixing, and ensures that the cooling effect is not affected.
Smart Images
Figure CN224515271U_ABST
Abstract
Claims
1. An engine wet cylinder liner having an assembly guide function, characterized by: The cylinder liner body (1) includes a lower cylinder bore mating section (14), a recess (12) and an upper cylinder bore mating section (13) arranged sequentially from bottom to top on the outer wall of the cylinder liner body (1). A water sealing ring groove (11) is provided on the lower cylinder bore mating section (14). A guide boss (15) is provided below the upper cylinder bore mating section (13). A water sealing ring (2) is provided in the water sealing ring groove (11). When the water sealing ring (2) contacts the lower cylinder bore during the assembly of the cylinder liner body (1) and the engine cylinder bore, the guide boss (15) guides and engages with the upper cylinder bore. During the assembly of the cylinder liner body (1) and the engine cylinder bore, the guide step and the upper cylinder bore mating section (13) work together to guide and engage with the upper cylinder bore.
2. The engine wet cylinder liner with an assembly guide function according to claim 1, characterized by, The guide boss (15) is provided with an inclined guide surface (16) on the side near the sealing ring groove (11).
3. The engine wet cylinder liner with assembly guide function according to claim 1, characterized by, The outer diameter of the guide boss (15) is the same as the outer diameter of the upper cylinder bore mating section (13).
4. The engine wet cylinder liner with an assembly guide function according to claim 2, characterized by, The guide boss (15) is set in the recess (12), and 3-4 guide bosses (15) are evenly distributed along the circumference of the cylinder liner body (1).
5. The engine wet cylinder liner with assembly guide function according to claim 2, characterized by, The guide boss (15) and the recess (12) are connected by a rounded transition or a beveled transition.
6. The engine wet cylinder liner with an assembly guide function according to claim 2, characterized by, When the bottommost sealing ring (2) contacts the lower cylinder hole, the guide boss (15) engages with the upper cylinder hole guide.