公开(公告)号：US4915063A

公开(公告)日：1990-04-10

申请号：US355031

申请日：1989-05-16

Applicant: Marvin D. Stumpf

Inventor： Marvin D. Stumpf

IPC: F01P1/06 ,  F02B75/02 ,  F02M17/04 ,  F02M37/20

CPC classification number: F02M17/04 ,  F01P1/06 ,  F02M37/20 ,  F02B2075/025 ,  F02D2200/0606 ,  Y10S261/68

Abstract: An apparatus for reducing or eliminating the occurrence of vapor lock in two-cycle engines isolates the fuel pump from the heat radiating engine block in a two-cycle, air cooled engine spaces the fuel pump from the carburetor and injects the fuel directly against the carburetor inlet valve. Application of an additional cooling means including airflow and liquid fuel means, may be provided in order to convey heat away from the fuel pump and therefore maintain the fuel pump temperature below the point at which vaporation pressure exceeds the impulse pressure generated from the power head. The fuel pump is removed from the hot carburetor as part of the vapor lock prevention system.

Abstract translation: 用于减少或消除在两冲程发动机中发生蒸气锁的装置将燃料泵与散热发动机缸体隔离在两循环的空气冷却发动机中，使得燃料泵从化油器处空出并将燃料直接喷射在化油器上 入口阀。 可以提供包括气流和液体燃料装置的额外的冷却装置的应用，以便将热量从燃料泵传送出去，从而将燃料泵温度保持在低于蒸发压力超过从动力头产生的脉冲压力的点。 燃料泵作为防汽油锁系统的一部分从热化油器中取出。