Internal-combustion engines – Poppet valve operating mechanism – Rod
Patent
1988-08-17
1989-09-12
Myhre, Charles J.
Internal-combustion engines
Poppet valve operating mechanism
Rod
F01L 114
Patent
active
048649830
ABSTRACT:
The design and construction of past pushrod retainers has required complex components, sliding relationships and additional assembly time and expense. The present invention overcomes these problems by using a retainer attached to a first end of the rocker arm. Thus, the components are simple to install, imexpensive to manufacture and do not increase assembly time since there is no adjustment necessary when using the device. The present pushrod retainer provides a device which retains the cupped end of the pushrod in a pre-established proximity to the first end of the rocker arm and prevents extensive damage to the engine caused by a large separation between the cupped end of the pushrod and the first end of the rocker arm which allows the pushrod to fall into other components and resulting in malfunction of the engine. The device cradles the cupped end and prevents the pushrod from tipping or falling to one side. The device is preassembled to the rocker arm and requires no additional assembly time or alignment when assembling the engine. The device is inexpensive to manufacture and only contacts the pushrod when a malfunction of the engine occurs.
REFERENCES:
patent: 1252692 (1918-01-01), Harris
patent: 1499573 (1924-07-01), Ennis
patent: 1565712 (1925-12-01), Charnock
patent: 2346737 (1944-04-01), Essl
patent: 3034488 (1962-05-01), Reiners
patent: 3963280 (1976-06-01), Irving
Cain Larry G.
Caterpillar Inc.
Lo Weilyn
Myhre Charles J.
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